Wrestling Weight Certification: How the Rules Work

Every combat sport regulates the day of the weigh-in. Wrestling is the only one that regulates the athlete.

Under the NCAA and NFHS weight-management programmes, a wrestler does not simply pick a division and try to reach it. A qualified assessor measures their hydration, then their body composition, and the system computes a lowest allowable weight below which that individual may not legally compete for the rest of the season. Then it computes a second floor from the calendar, takes whichever of the two is higher, and issues a week-by-week descent plan.

It is the most complete answer any sport has produced to the question of how to stop athletes hurting themselves on the scale, and it exists for a specific reason: in a five-week period in 1997, three collegiate wrestlers died during rapid weight loss.

This article sets out how the system actually works, quoting the NCAA's own programme documents, and corrects the figure that almost every summary of it gets wrong. The minimum body fat for an NCAA men's wrestler is not seven percent.

5% / 17%

Body fat at which the NCAA computes lowest allowable weight — five percent for men, seventeen percent for women. Not the seven percent usually quoted

NCAA 2025-26 Men's and Women's Wrestling Weight Management Packets

1.020

Urine specific gravity above which an NCAA wrestler cannot proceed to body-composition testing and must return no earlier than 24 hours later

NCAA 2025-26 Men's Wrestling Weight Management Packet, Step 1

1.5%/week

Maximum rate of descent the NCAA formula allows from certification, giving the second of the two floors

NCAA packet, LAW2 formula: BW − (.015/7) × days × BW

Fatalities that prompted the programme, in the NCAA's own words, over 33 days in November–December 1997

MMWR 1998;47(6):105–108; NCAA packet, Supplement No. 9

What this comes down to

The NCAA computes lowest allowable weight at five percent body fat for men and seventeen percent for women. The widely quoted seven percent is the high-school figure under NFHS rule 1-5-1, and applies to a different competition under a different rulebook.
There are two floors, not one. LAW1 comes from body composition; LAW2 comes from the calendar at 1.5% of body weight per week from certification. The minimum wrestling weight is the higher of the two, so a late certification cannot buy a lower weight class.
Hydration is a gate, not a measurement. A wrestler over 1.020 specific gravity does not get a body-fat test at all, and must return no earlier than 24 hours later. Test strips are explicitly not permitted; a refractometer or urinometer is required.
The NCAA's own documentation shows its working on the 1.020 threshold and admits the trade-off: at that cut-off, roughly 80% of dehydrated wrestlers were correctly identified but only 31% of hydrated ones. The programme says plainly that the decisions are "somewhat arbitrary, too".
The high-school female minimum body fat has changed. NFHS documentation put it at 12 percent through the 2025-26 season; the rules committee raised it to 19 percent effective 2026-27, which is the season now beginning.
The system regulates the floor of the season, not the day of the weigh-in. That is what makes it different from every professional combat sport, and it is why comparing wrestling's rules to an MMA commission's is a category error.
Once certified, the results are final and unalterable. The NCAA memorandum states the Wrestling Rules Committee will not consider reviews.

The three deaths that built the system

The NCAA's weight-management documentation does not bury its origin. In Supplement No. 9, under the heading "Rationale for Hydration Measurement and 1.020 Value", the programme states its own purpose in one sentence:

This emphasis is consistent with the stimulus for this program, three fatalities involving dehydration.

The reference is to a five-week period in late 1997. The Centers for Disease Control and Prevention reported the cases in Morbidity and Mortality Weekly Report under the title "Hyperthermia and Dehydration-Related Deaths Associated With Intentional Rapid Weight Loss in Three Collegiate Wrestlers — North Carolina, Wisconsin, and Michigan, November–December 1997". Three previously healthy collegiate wrestlers, in three states, died between 7 November and 9 December 1997 while engaged in programmes of rapid weight loss to qualify for competition. Each had been exercising vigorously in heat, wearing vapour-impermeable suits, with food and fluid restricted.

The response was structural rather than advisory. Within a year the NCAA had a weight-certification programme, and the NFHS followed for high schools. What both did was novel, and it is worth stating precisely what the novelty was: instead of policing behaviour during fight week, they made a large fraction of the behaviour arithmetically pointless by fixing, in advance, how low each individual athlete was permitted to go.

Nearly three decades on, that remains the only regulatory model in combat sports that attacks the problem at the level of the athlete rather than the event.

The first floor: lowest allowable weight from body composition

The NCAA calls it LAW1. The men's packet defines it in a single line under the heading:

LOWEST ALLOWABLE WEIGHT-ONE [LAW1]. The lowest allowable weight at five percent body fat.

The women's packet, in the identical position in the identical document structure, reads:

LOWEST ALLOWABLE WEIGHT-ONE [LAW1]. The lowest allowable weight at 17 percent body fat.

Five percent and seventeen percent. These are not typographical variants of the same idea; they reflect the fact that essential body fat differs substantially between men and women and that a common floor would not mean the same thing physiologically.

The arithmetic is straightforward once body composition is known. The assessor measures body density — by skinfold calipers taken in serial order at triceps, subscapular and abdomen, by hydrostatic weighing with a direct measure of residual volume, or by Bod Pod — and the Optimal Performance Calculator converts that to percentage body fat, fat weight and fat-free weight. LAW1 is then the athlete's fat-free weight divided by 0.95 for a man, or by 0.83 for a woman.

The packet's own worked example is instructive. A male student-athlete with a hydrated body weight of 200 pounds and a measured 12% body fat carries 24 pounds of fat and 176 pounds of fat-free mass; 176 divided by 0.95 gives a LAW1 of about 185 pounds. That athlete cannot compete below the weight class that figure lands in, no matter what they can achieve on a scale.

The second floor, which nobody mentions

Almost every explanation of wrestling certification stops at body fat. That is half the system.

LAW2 is computed from the calendar rather than the body. The packet:

Step No. 5. Lowest Allowable Weight-TWO [LAW2]. The lowest allowable weight is calculated by using 1.5 percent of body weight lost per week from the initial certification to certification date. The OPC will use the appropriate equation [BW - (.015/7) * # of days * BW].

And then the rule that ties the two together:

Step No. 6. Minimum Wrestling Weight. Select the higher value between LAW1 and LAW2 to determine minimum wrestling weight.

The higher, not the lower. This is the whole design in one instruction. LAW1 says how lean the athlete may ultimately become; LAW2 says how fast they may get there. Whichever constraint binds first is the one that governs, so a wrestler cannot use a favourable body-composition result to justify a rapid descent, and cannot use a long calendar to justify going below their compositional floor.

It also removes a loophole that would otherwise be obvious. Certifying late in the season does not produce a lower minimum weight, because LAW2 is measured from the date of initial certification: fewer days elapsed means a higher floor, not a lower one. The men's packet requires certification forms to be entered on or before 1 November, and notes that wrestlers joining a team afterwards must certify before they compete — with the pointed addition that "regardless of when the weight certification is completed, the wrestler shall strictly adhere to the allowable minimum wrestling weight listed in the weight loss descent plan."

Hydration is a gate, not a measurement

Before any of that arithmetic runs, the athlete has to pass a hydration test. The reasoning is not primarily about health at that moment — it is about measurement integrity. A dehydrated athlete's body composition reads leaner than it is, which would certify a floor lower than the athlete's real one and bake the dehydration into the whole season.

The procedure is specific:

Check urine sample for specific gravity using refractometer (gold standard) or urinometer to provide a valid specific gravity value. Note: Test strips are not permissible as a measuring device for specific gravity.

If specific gravity is greater than 1.020, the wrestler must return not earlier than 24 hours in a hydrated state for a retest.

Three details in that passage repay attention. The sample must be witnessed — the packet requires a member of the institution's athletics medical staff, of the same gender, to visually witness production of the sample and ensure its delivery. Test strips are banned outright, which is a rare instance of a governing body specifying not just a threshold but the class of instrument that may establish it. And the penalty for failing is a 24-hour minimum wait, not a retest in an hour, which removes the option of drinking a litre in the corridor.

That last provision is the difference between a hydration test and a hydration gate. A test you can retake immediately measures the last twenty minutes. A test you cannot retake for a day measures something closer to how you have been living.

Where 1.020 came from, in the programme's own words

Most governing bodies hand you a threshold. The NCAA packet, unusually, hands you the study and the trade-off, in a supplement titled "Why The Urine Specific Gravity Cut-Off Point Is Where It Is". It opens by conceding the point:

Why set the urine specific gravity test at 1.020? Why set the weight class at 141 or 184 or score 2 points for a takedown? As with many rules in wrestling and other sports too, the decisions are based in part on good evidence, but they are somewhat arbitrary, too.

The evidence it then describes: urine specific gravity samples were collected from 50 wrestlers alongside blood samples measuring fluid volume in the blood, and three candidate cut-offs were compared against the blood criterion.

At 1.015, 89% of the dehydrated wrestlers were correctly identified — and only 13% of the hydrated ones. At 1.020, the dehydrated detection fell to 80% while correct classification of hydrated wrestlers rose to 31%. At 1.023, only 60% of dehydrated subjects were identified while 38% of hydrated ones were correctly placed.

Read those numbers honestly and they are not flattering to the test. At the chosen threshold, roughly two in three properly hydrated wrestlers are told they are not. The packet does not hide from this; it explains the asymmetry that justifies it:

Conversely, a hydrated wrestler who fails the test (that is, appears dehydrated) will have to test a second time, which is inconvenient. However, there are no health or performance risks associated with coming back a second time. So, it is more important to catch dehydrated wrestlers than to miss hydrated wrestlers.

That is a correctly reasoned decision under uncertainty, and it is stated in public. It is also, incidentally, the best short argument available for why a hydration threshold used as a gate can be defensible while the same threshold used as a verdict would not be. The distinction matters everywhere hydration testing appears in combat sports, which is the subject of hydration testing at weigh-ins.

High school is a different rulebook, and the numbers moved

Here is where most published summaries go wrong, including some that are otherwise careful. (The classes themselves, state by state, are tabled in high school wrestling weight classes.)

The NFHS operates a separate programme for high-school wrestling under rule 1-5-1, which requires each state association to run a weight-management programme with three components: a specific gravity not to exceed 1.025; a body-fat assessment floor; and a monitored weekly weight-loss plan not to exceed 1.5 percent a week.

So the high-school hydration threshold is 1.025, not the NCAA's 1.020. And the body-fat floor is different again. An NFHS-published article from October 2022 states the figures then in force: "Minimum body fat should not be lower than seven percent for males or 12 percent for females."

That female figure has since changed. The NFHS Wrestling Rules Committee revised rule 1-5-1 to raise the minimum body-fat percentage for females from 12 to 19 percent, effective with the 2026-27 season — the season now beginning. State association documentation implementing the programme, including the University Interscholastic League's published certification information for Texas, now states the seven percent male and 19 percent female figures.

Four numbers, then, that get used interchangeably and should not be:

Programme	Hydration limit	Male floor	Female floor
NCAA	USG ≤ 1.020	5% body fat	17% body fat
NFHS (through 2025-26)	USG ≤ 1.025	7% body fat	12% body fat
NFHS (from 2026-27)	USG ≤ 1.025	7% body fat	19% body fat

If you take one thing from this article, take that table, and take the habit behind it: a rule quoted without its governing body and its season is not a rule, it is a rumour with a decimal point.

The descent plan, and what moving up costs

The certification does not merely produce a number. It produces a schedule. (To see both floors for your own assessment, the wrestling weight certification calculator applies the same two formulas.)

Every certified wrestler receives a weight-loss descent plan setting out what they should weigh each week to reach the target class within the 1.5%-per-week constraint. The head coach's memorandum describes the intent plainly: the document exists "by providing clear guidance on what they should be weighing each week to descend safely to the lower weight classification."

The descent plan also governs movement between classes during the season. The NCAA's ascent/descent provision states that if a wrestler competes up a weight class, they must follow the descent plan to determine the date on which they are again eligible for the lower weight, and that this may be applied multiple times up to the first day of postseason weigh-in. The consequence has teeth: a wrestler whose descent plan does not show them eligible at the lower class on the first day of postseason competition is not permitted to weigh in there. The memorandum notes there is no appeal for missing the postseason deadline.

And once a certification is approved by both the medical assessor and the coach, "the results are final and unalterable. The Wrestling Rules Committee will not consider reviews."

For an athlete, the practical read is that the consequential decisions in a wrestling season happen in October, not in February. Which is the same lesson the fight-week literature keeps arriving at from the other direction — that the descent is decided long before anyone stands on a scale, a point covered from the professional side in how much weight you can cut before a fight.

What the system does not do

It is worth being as precise about the programme's limits as about its provisions, because it is frequently described as having "solved" weight cutting and it has not.

It does not regulate the day. A certified wrestler at their minimum weight can still dehydrate acutely before a dual meet. The floor limits how far down the season can take them; it does not put a hydration test on the competition scale at every event.

It depends on the accuracy of a skinfold measurement. The packet acknowledges this, providing that where there is concern about a skinfold result, an analysis using the gold standards — refractometer for specific gravity and underwater weighing with a direct measure of residual volume for body density — should be used, and that the result of that analysis is final. But the default path for most athletes is calipers, whose reliability depends on the assessor.

It does not cover anyone outside its jurisdiction. Club wrestling, international freestyle and Greco-Roman competition under United World Wrestling, and every professional combat sport operate under different rules or none. An athlete who wrestles in college and fights amateur MMA in the summer is regulated in one and largely not in the other.

And it cannot detect the thing it most wants to prevent with any great accuracy, which brings us to the bias in the test itself.

The bias hiding inside the hydration test

A 2024 quantitative review in Translational Sports Medicine pooled urine specific gravity estimates from athletes and active adults — 171 estimates from men and 59 from women — and asked whether fat-free mass is associated with USG. It is: weakly in men (ρ = 0.36) and moderately in women (ρ = 0.57), with a significant positive correlation combined (ρ = 0.38).

The implication is uncomfortable for a programme built on a fixed threshold. Athletes carrying more fat-free mass are more likely to present elevated specific gravity, which means the standard cut-off may classify muscular, adequately hydrated athletes as hypohydrated. The authors are explicit that if USG continues to be used in sport settings, research is needed to determine whether fat-free-mass-specific thresholds would be more appropriate.

Wrestlers are, as a population, unusually lean and unusually muscular for their mass. That is precisely the population in which a fixed threshold is most likely to misfire — and in the direction of false failures rather than false passes, which is the safer direction to err but not a free one. A wrestler sent away for 24 hours has lost a day of the certification window; a team of them has lost a week of assessor time.

None of this means the threshold is wrong. It means the number is a compromise with known error, exactly as the NCAA's own supplement says, and it should be discussed that way rather than as a physiological constant.

What wrestling proves about regulating weight cutting

Set the mechanics aside and the interesting question is whether any of it works. Wrestling is the only combat sport with enough of a regulatory record to be worth asking.

The honest answer available from the documents themselves is narrower than the claim usually made for them. What the programme demonstrably does is remove the lowest and most dangerous divisions from an athlete's option set, slow the rate at which anyone may descend, and force the decision into a supervised process with a medical professional in the room. Those are real structural changes, and no professional sanctioning body has matched them.

What the documents do not establish — and we should not imply — is a measured reduction in injury or death attributable to the programme. The three 1997 fatalities are documented; the absence of comparable clusters since is consistent with the programme working and also consistent with several other explanations. We did not locate a published evaluation that isolates the effect, and this site does not manufacture one.

The transferable lesson is a design lesson. Every other combat sport regulates the event: when the scale happens, what tolerance applies, what penalty follows a miss. Wrestling regulates the athlete, once, in advance, and lets the arithmetic do the rest of the season's policing. Judo took a partly similar route from the opposite end by capping the rebound rather than the descent, which is covered in judo weight classes and the random weigh-in. Both are more structural than anything professional combat sports currently do.

What we could not verify

The NFHS rulebook text itself. We quote rule 1-5-1's components from NFHS-published articles and from state association implementations, including the University Interscholastic League's certification information. The NFHS Wrestling Rules Book is a purchased publication and we did not read the primary article text. Confirm the current wording with your state association.
The 2026-27 female body-fat change as applied in your state. Rule 1-5-1 requires each state association to run a programme meeting the NFHS minimums; state implementations vary in dates and procedure. We verified the 19 percent figure in state documentation, not in every state's.
The full case detail of the 1997 deaths. The MMWR report is indexed on PubMed and reprinted in JAMA; the CDC's own hosted copy returned an access error during research. We describe the cases at the level the indexed record and reprint support and do not reconstruct clinical detail beyond it.
Any evaluation of the programme's effect on injury or mortality. We did not locate one. The absence of further reported clusters is not evidence of causation and we do not present it as such.
Nothing here is specific to you. Not your certification, your assessor's measurement, your state's procedure, or your medical history.

Questions fighters ask

What is the minimum body fat percentage for NCAA wrestling?

Five percent for men and seventeen percent for women. The NCAA's 2025-26 Men's Wrestling Weight Management Packet defines lowest allowable weight-one as "the lowest allowable weight at five percent body fat", and the women's packet defines the same value at 17 percent body fat. The commonly cited seven percent is the high-school figure under NFHS rule 1-5-1, which governs a different competition entirely. Quoting the high-school number for a college wrestler understates their legal floor and, more importantly, suggests the two programmes are the same system when they differ on hydration threshold, body-fat floor and administration.

What urine specific gravity do wrestlers need to pass?

For NCAA wrestling, 1.020 or lower. If specific gravity is greater than 1.020 the wrestler cannot proceed to body composition testing and must return not earlier than 24 hours later in a hydrated state for a retest. The sample must be witnessed by a member of the institution's athletics medical staff of the same gender, and must be measured with a refractometer or urinometer — the packet states explicitly that test strips are not permissible. High-school wrestling under NFHS rule 1-5-1 uses a higher threshold, specific gravity not to exceed 1.025, and state associations administer the testing.

How is a wrestler's minimum weight calculated?

Two figures are computed and the higher one wins. LAW1 is the weight at the programme's body-fat floor: fat-free weight divided by 0.95 for NCAA men, or by 0.83 for NCAA women. LAW2 comes from the calendar, applying a maximum descent of 1.5 percent of body weight per week from the date of initial certification, using the formula BW − (0.015/7) × days × BW. The minimum wrestling weight is whichever of LAW1 and LAW2 is higher, and the minimum weight class is then the lowest class that figure qualifies for. Because LAW2 is measured from certification, certifying late produces a higher floor, not a lower one.

Why can't wrestlers just cut more weight quickly?

Because the rules cap the rate as well as the floor. Both the NCAA and NFHS programmes limit descent to 1.5 percent of body weight per week, and in the NCAA that limit is built into the LAW2 calculation that sets the athlete's legal minimum. A wrestler who loses faster does not gain access to a lower class; they simply fail to be eligible for the class their descent plan does not support. The design intent is to make the aggressive option useless rather than merely discouraged, which is a different and considerably more effective regulatory strategy than a penalty after the fact.

Where did the wrestling weight rules come from?

From three deaths. In a 33-day period between 7 November and 9 December 1997, three previously healthy collegiate wrestlers in North Carolina, Wisconsin and Michigan died while engaged in rapid weight-loss programmes to qualify for competition, each exercising in heat in vapour-impermeable suits with food and fluid restricted. The CDC reported the cluster in Morbidity and Mortality Weekly Report in 1998. The NCAA's own weight-management documentation names the cause directly, stating that the programme's emphasis on hydration "is consistent with the stimulus for this program, three fatalities involving dehydration."

Can a wrestler change weight class during the season?

Yes, but the descent plan governs the return. The NCAA's ascent/descent provision states that a wrestler who competes up a weight class must follow their weight-loss descent plan to determine the date on which they are again eligible for the lower weight, and that the manoeuvre may be repeated up to the first day of postseason weigh-in. The hard boundary is postseason: a wrestler whose descent plan does not show eligibility at the lower class on the first day of postseason competition may not weigh in there, and the memorandum states there is no appeal for missing that deadline.

Are test strips allowed for hydration testing?

Not in NCAA wrestling certification. The packet states directly that test strips are not permissible as a measuring device for specific gravity, and requires a refractometer — described as the gold standard — or a urinometer. Practice differs at high-school level, where state associations administer the programme and some published implementations describe pass/fail colour-chart screening with refractometers or dipsticks as alternatives. If you are being assessed, it is reasonable to ask which instrument is being used, because the answer determines how much weight the result deserves.

Does the NFHS female body-fat minimum still sit at 12 percent?

No. NFHS-published material from 2022 gives the figures then in force as seven percent for males and 12 percent for females. The NFHS Wrestling Rules Committee subsequently revised rule 1-5-1 to raise the female minimum to 19 percent, effective with the 2026-27 season, and state association documentation implementing the programme now reflects that figure. Because state associations administer the programme, confirm the version and the implementation date with yours rather than assuming a national date applies uniformly.

Does wrestling certification stop weight cutting?

No, and it does not claim to. What it does is remove the lowest divisions from an individual athlete's option set, cap the rate of descent, and put a medical professional in the room for the decision. A certified wrestler at their legal floor can still dehydrate before a dual meet, because the programme regulates the season rather than the day. No published evaluation isolating the programme's effect on injury or mortality was located during research for this article, and the absence of further reported fatality clusters since 1997 is consistent with the programme working but does not by itself demonstrate it.

How accurate is the 1.020 hydration threshold?

Moderately, and the NCAA publishes the trade-off. Its own supplement describes a comparison of three candidate cut-offs against blood fluid volume in 50 wrestlers: at 1.015, 89 percent of dehydrated wrestlers were correctly identified but only 13 percent of hydrated ones; at 1.020, 80 percent and 31 percent respectively; at 1.023, 60 percent and 38 percent. The programme selected 1.020 on the explicit reasoning that "it is more important to catch dehydrated wrestlers than to miss hydrated wrestlers", and states that the decisions are "based in part on good evidence, but they are somewhat arbitrary, too."

Does being muscular affect a hydration test?

The evidence suggests it does, in the direction of false failures. A 2024 quantitative review in Translational Sports Medicine pooled 171 urine specific gravity estimates from men and 59 from women and found fat-free mass positively associated with USG — weakly in men (ρ = 0.36) and moderately in women (ρ = 0.57). The authors conclude that athletes with larger amounts of fat-free mass are more likely to have elevated USG, and that fat-free-mass-specific thresholds may be needed. For a population as lean and muscular as wrestlers, that means the standard threshold is likely to send some adequately hydrated athletes away for 24 hours.

When does an NCAA wrestler have to certify?

Institutions are required to enter minimum wrestling weight certification forms online on or before 1 November, and wrestlers joining a team after that date must complete certification before they compete. The packet adds that regardless of when certification happens, the wrestler must strictly adhere to the allowable minimum weight in their descent plan. Once a certification has been approved by both the medical assessor and the coach, the packet states the results are final and unalterable and that the Wrestling Rules Committee will not consider reviews — so the assessment is worth arriving at properly hydrated and properly prepared.

How does wrestling's approach compare to MMA or boxing?

It is structurally different rather than stricter. Professional combat sports regulate the event: when the weigh-in happens, what tolerance applies, what penalty follows a miss. Wrestling regulates the athlete, once, before the season, and fixes a legal floor that no subsequent effort can move. Judo takes a third approach, capping how heavy an athlete may be at competition rather than how light they were at the scale. None of these is a substitute for the others, and an athlete competing under more than one of them in a year is subject to genuinely different constraints in each.

Can I use my wrestling certification for other sports?

No. The certification is a legal determination within the programme that issued it, valid for that competition under that rulebook. United World Wrestling, amateur MMA bodies, judo, jiu-jitsu federations and professional commissions each set their own rules, and most set none of this kind at all. The underlying physiology travels — your fat-free mass does not change when you enter a different building — but the legal floor does not. Treat the certified figure as useful personal information about the weight at which you can actually compete, and confirm the rules separately for every organisation you enter.

Sources

Sourced to

2025-26 NCAA Men's Wrestling Weight Management Program Packet — National Collegiate Athletic Association, memorandum dated 13 August 2025; LAW1/LAW2 calculation, hydration protocol, Supplements 8 and 9
2025-26 NCAA Women's Wrestling Weight Management Program Packet — National Collegiate Athletic Association, 2025; LAW1 defined at 17 percent body fat
2024-25 NCAA Wrestling Weight Management Program Packet — National Collegiate Athletic Association, 2024, retained for comparison of prior-season provisions
Hyperthermia and dehydration-related deaths associated with intentional rapid weight loss in three collegiate wrestlers — North Carolina, Wisconsin, and Michigan, November–December 1997 — Centers for Disease Control and Prevention, MMWR Morb Mortal Wkly Rep 1998;47(6):105–108, PMID 9480411
Hyperthermia and Dehydration-Related Deaths Associated With Intentional Rapid Weight Loss in Three Collegiate Wrestlers (JAMA reprint) — Journal of the American Medical Association, reprint of the MMWR report
Rules in Place to Guard Against Weight Cutting in Wrestling — Ronshaugen N, Moffatt K, Koontz J, National Federation of State High School Associations, 5 October 2022
Wrestling Minimum Weight Certification Program Information — University Interscholastic League, Texas; state implementation of NFHS rule 1-5-1
2025-2026 Wrestling Weight Management Program Handbook — Georgia High School Association, 17 September 2025; a second state implementation for comparison
Fat-Free Mass Is Positively Associated With Urine Specific Gravity in Athletes and Active Adults: A Quantitative Review — Wilson PB, Winter IP, Translational Sports Medicine, 9 December 2024;2024:8827027. DOI 10.1155/tsm2/8827027, PMID 39686918
International society of sports nutrition position stand: nutrition and weight cut strategies for mixed martial arts and other combat sports — Ricci AA et al., Journal of the International Society of Sports Nutrition, 2025;22(1):2467909. DOI 10.1080/15502783.2025.2467909, PMID 40059405
Urine specific gravity as an indicator of dehydration in Olympic combat sport athletes; considerations for research and practice — Zubac D, Reale R, Karnincic H, Sivric A, Jelaska I, European Journal of Sport Science, 2018;18(7):920–929. DOI 10.1080/17461391.2018.1468483

Plan the descent, don't guess it

Fighter Cut builds a week-by-week plan from today to your weigh-in, classifies the rate you are actually losing at, and logs what you eat against it. It does not make a cut safe — nothing does. It makes the numbers visible early enough to change them.

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Wrestling weight certification, explained