Making weight
The numbers that are
actually yours
Almost everything written about cutting weight in wrestling was written about boys, or about grown men fighting in a cage. Some of it is fine. The arithmetic is not.
By Joe Spisak, PIAA state champion and 4x NCAA qualifier at Virginia · Published August 24, 2026
The one number to know
Your minimum body fat is 12 percent. A boy's is 7.
NFHS Wrestling Rules 1-5-1 and 1-5-2. Going below it requires a signed medical release from a health care professional, and no coach or app can waive that for you.
Why that changes your whole plan
Your minimum wrestling weight is not a percentage off what you weigh today. It is the weight you would be if your body fat dropped to the floor while your lean mass stayed exactly the same. Two steps:
- Lean body mass = your assessed weight multiplied by (1 minus your body fat).
- Minimum wrestling weight = that lean mass divided by (1 minus 0.12).
Divided, not subtracted. That trips up a lot of people, including people writing software. Worked through with real numbers, for someone assessed at 140 pounds and 28 percent body fat:
| Using | Minimum weight | Lowest legal class |
|---|---|---|
| 12% floor (correct for girls) | 114.5 lb | 115 |
| 7% floor (a boy's number) | 108.4 lb | 110 |
| Subtracting instead of dividing | 117.6 lb | 120 |
The middle row is the dangerous one. An app built on the boys number tells that athlete she can get to 110. She cannot. She is not certified for it, she will not be allowed to wrestle there, and the six pounds she loses chasing it come out of a body that had no business losing them.
The three things that happen at your assessment
1. Hydration test
A urine sample, checked for specific gravity. It has to come in at 1.025 or lower. If it does not, you wait, usually 24 hours, and test again. You cannot be assessed dehydrated, which is the entire point: a dehydrated body reports less body fat than it has, and that would certify you lower than is safe.
Iowa is worth flagging if you wrestle there. Their first screen is a urine color chart rather than specific gravity, with the 1.025 test as the backup.
2. Alpha weight
Immediately after you pass hydration, on a certified scale, before any exercise. That number is your baseline for the entire season. Every descent calculation runs from it.
3. Body composition
Usually skinfold calipers. Pennsylvania, for one, specifies the Lange caliper as the only permitted instrument. This is the measurement that sets your minimum weight, and it is the one worth being properly hydrated and calm for.
The 1.5 percent rule
You may not average more than 1.5 percent of your body weight per week of loss, measured from your original assessment. That is a rule, not a guideline. In Pennsylvania an appeal is automatically denied if your loss exceeded it.
What happens when you miss a week genuinely depends on your state, and this is where most advice you will read online is wrong for you:
- Iowa and Pennsylvania: your descent plan gets recalculated from the higher weight you actually hit, which pushes back the first date you are eligible for your lowest class.
- Ohio: a different mechanic entirely. Weigh in more than one class above the plan and you forfeit that class and every lower one remaining. Within one class, no penalty.
- Illinois: a flat one class step up from your original certification.
So: find out which one your state uses before you plan a season around a number you read somewhere.
Your weight classes depend on your state too
Since July 2023 the NFHS publishes three girls class sets and each state association picks one. Confirmed on the 14 class set so far: Pennsylvania, Ohio, Illinois, Texas, California.
| Set | Classes (lb) |
|---|---|
| 14 classes | 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 155, 170, 190, 235 |
| 13 classes | 100, 106, 112, 118, 124, 130, 136, 142, 148, 155, 170, 190, 235 |
| 12 classes | 100, 107, 114, 120, 126, 132, 138, 145, 152, 165, 185, 235 |
The part nobody tells you
There is a full practical guide to this covering what to do on a meet day and when irregularity is a medical issue rather than a training one.
Your weight moves with your cycle. The research on exactly how much is genuinely messy: a 2025 review of women's wrestling found fluid driven gains of roughly one to two pounds in the back half of the cycle, but with wide disagreement between studies and enormous variation between individuals. Several studies found no measurable change at all.
Two things follow from that, and they matter more than the average does.
First, an average cannot tell you about you. Because the effect varies so much person to person, the only useful version of this number is your own, from your own weigh ins over a few months. If something tells you to expect a specific gain on a specific day, it is guessing.
Second, water is not fat and should not be cut. The same review recommends avoiding weigh ins in the late luteal phase where you can. Wrestle Like A Girl says it plainly: retention around menstruation is normal and is not something to cut. If your weight is up two pounds and your intake has been right, the answer is usually that you are fine, not that you should stop drinking water.
There is also a real gap here worth naming: that review found zero studies measuring cycle effects on weight loss outcomes, menstrual dysfunction, or RED-S specifically in competitive female wrestlers. Not few. Zero. Anyone speaking with total confidence about this is speaking past the evidence.
When to stop and talk to someone
Weight class sports carry the highest measured risk of low energy availability among female athletes. If your period stops or goes irregular during the season, that is not a sign the cut is working. It is a reason to talk to a doctor, and it is the single most common way this sport does lasting damage.
Wrestle Like A Girl puts the test well: if more energy is going into managing your weight than into wrestling, you are at the wrong weight class.
The authority is not us
Your certified minimum weight comes from the NWCA Optimal Performance Calculator, fed by your assessor's measurements, and that is the number officials enforce at the scale. If anything here disagrees with your OPC number, the OPC is right and you should ask your athletic trainer. Everything on this page is here to help you understand that number, never to replace it.