Formula
DOTS and Wilks are both 500 × total ÷ polynomial(body weight), with different coefficients for men and women. The polynomial is stored constant-first. IPF GL is a different shape, and its coefficient is rounded to six decimal places before the multiplication, which is how the federation’s sheet does it.
DOTS = total × 500 / (a + bx + cx² + dx³ + ex⁴)
IPF GL coefficient = round₆(100 / (A − B e^(−C x)))
points = coefficient × total
x is body weight in kilograms. The total is in kilograms. Pounds on this page are converted with 0.45359237 kg per pound before the formula runs. The IPF GL coefficients took effect 1 May 2020.
Worked examples
Men, 100 kg, 600 kg total, classic. DOTS 369.309. Wilks 365.153. Wilks-2 364.681. IPF GL coefficient 0.126329, points 75.797.
The same lifter typed as 220.462 lb and 1,322.77 lb. Those are the same kilograms. The scores do not move.
Reference
A 500 kg total, classic IPF GL. Scores change with body weight because the coefficient does. Women and men are not on the same curve.
| Body weight | Men DOTS | Women DOTS | Men GL | Women GL |
|---|---|---|---|---|
| 60 kg | 422 | 554.3 | 82 | 113.02 |
| 75 kg | 358.7 | 487 | 72.9 | 99.2 |
| 83 kg | 337.5 | 462.7 | 69.21 | 94.87 |
| 90 kg | 323.3 | 445.8 | 66.47 | 92.08 |
| 100 kg | 307.8 | 426.7 | 63.16 | 89.17 |
| 120 kg | 287.2 | 401.2 | 58.12 | 85.71 |
Questions
What is a DOTS score?
DOTS multiplies the total, in kilograms, by 500 divided by a polynomial of body weight. A 100 kg man with a 600 kg total scores 369.309. The men’s and women’s polynomials are different. Body weight and the total both have to be kilograms.
How is DOTS different from Wilks and IPF GL?
All three answer “how good is this total at this body weight?” Wilks is the older polynomial, 500 over a fifth-degree polynomial. Wilks-2 replaced the coefficients. IPF GL, in force from 1 May 2020, is 100 / (A − B e^(−C × body weight)), and the coefficient is rounded to six decimals before it is multiplied by the total. On the same 100 kg / 600 kg men’s total, Wilks is 365.153, Wilks-2 is 364.681, and classic IPF GL is 75.797.
Does equipped lifting use the same IPF GL coefficient?
No. Classic, equipped, classic bench, and equipped bench each have their own A, B, and C, and men and women each have their own set. The menu picks the sheet. DOTS and Wilks on this page do not change with equipment. They only score the total you type.
Why did some published DOTS sheets disagree on the sign?
The IPF’s formula PDF dropped the minus signs on the men’s DOTS coefficients. The signed polynomial is the one that reproduces the published score. This page uses the signed form: a 100 kg man with a 600 kg total scores 369.309, not a nonsense number.
Sources
- IPF GL coefficients, 2020 — coefficient rounded to 6 decimals, effective 1 May 2020.
- Wilks and DOTS polynomials as reprinted in the IPF models evaluation. DOTS men use the signed coefficients. The total and the body weight are kilograms.