DOTS vs Wilks: The Two Powerlifting Scores Compared
A 60 kg lifter totalling 400 and a 120 kg lifter totalling 700 — who is "stronger"? Powerlifting answers that question with formulas that convert bodyweight and total into a single score. Two of them dominate: Wilks, the long-serving standard from the 1990s, and DOTS, the newer challenger built on far more data. Here is how they compare, and which one your meet probably uses.
What both formulas try to do
Strength does not scale linearly with bodyweight — double the bodyweight does not mean double the total. Scoring formulas model that curve: they divide your total by a bodyweight factor fitted from real competition results, then multiply by a constant (500 for DOTS, and Wilks coefficients are scaled so elite totals land in the 400s–500s too). The outputs are deliberately similar in scale, so a 400 on either system means roughly "elite". That is where the similarity ends.
Wilks: the 1990s standard
The Wilks formula was created by Robert Wilks and adopted widely in the 1990s; the IPF used it for decades. It applies a fifth-degree polynomial in bodyweight, with separate coefficients for men and women. Its weakness is its vintage: it was fitted on the lifter population and equipment of its era, and at the extremes of bodyweight it drifts — very light and very heavy lifters can find it noticeably generous or harsh, and it arguably favours certain middle-heavy classes. It remains in use at many local and unsanctioned meets simply because it is familiar and printed in every old rulebook. Compute yours on the Wilks calculator.
DOTS: the data-heavy successor
DOTS was developed by Tim Konertz using a vastly larger dataset of modern raw competition results, and it uses a fourth-degree polynomial fitted to track actual performance across the full bodyweight range more evenly. It was designed specifically to fix Wilks' edge behaviour: scores stay more consistent from the lightest classes to the super-heavyweights. DOTS is now the scoring system for major federations including USA Powerlifting and the USPA, and it is the default in most modern meet software. Compute yours on the DOTS calculator — and see what a good DOTS score looks like once you have it.
The same lifter, both scores
Take a male lifter at 93 kg bodyweight with a 600 kg total:
| System | Score |
|---|---|
| DOTS | 381.8 |
| Wilks | 376.9 |
Close — deliberately so, in the popular middle weight classes where most data lives. The gaps open up at the edges: test a 52 kg lifter or a 150 kg lifter and the two systems can disagree by 15–25 points, which is the difference between first and fifth in a best-lifter contest. That is the practical reason federations moved: not that Wilks was "wrong", but that DOTS distributes its errors more fairly across everyone on the roster.
Which one should you use?
- Competing soon? Use whatever your federation scores with — check the meet information. USAPL/USPA: DOTS. IPF internationals now use the IPF GL points system (a third formula, cousin to both). Many local meets: still Wilks.
- Comparing with friends across weight classes? DOTS is the fairer modern default, especially if your group spans light and heavy lifters.
- Tracking your own progress? Either — but pick one and stick to it. A score is a yardstick; switching yardsticks mid-journey makes progress unreadable. Judging yourself against bodyweight-multiple standards per lift is a useful cross-check too.
One honest caveat: neither score says anything about how you look, how healthy you are, or how much you enjoy training. They exist to rank totals on competition day — a narrow job they both do well.
Frequently asked questions
Is a 400 DOTS the same as a 400 Wilks?
Roughly, in the middle weight classes — both systems were scaled so elite performances land in a similar range. At very light or very heavy bodyweights they can diverge by 15–25 points for the same performance, with DOTS generally considered the more even-handed of the two.
Why did federations move away from Wilks?
Mainly fairness at the extremes and a stale dataset. Wilks was fitted on 1990s results and tends to favour or penalise certain bodyweights more than modern data says it should. DOTS was fitted on a much larger, modern dataset specifically to even that out.
What about IPF GL points?
The IPF replaced Wilks with its own GL (Good Lift) points system for international competition in 2020. It pursues the same goal as DOTS with its own fitted curve and separate formulas per discipline. If you compete in the IPF pathway, that is your official score; DOTS remains the standard in USAPL, USPA and much of the wider sport.