Sinclair Score for Olympic Weightlifting
Enter sex, body weight in kg and the total lifted to get the Sinclair-adjusted total from the 2021-2024 coefficients, comparing lifters across bodyweights.
Sinclair
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Sinclair Coefficient: comparing weightlifters
The Sinclair coefficient normalizes Olympic weightlifting totals (snatch + clean and jerk) across body weights, letting a 56 kg flyweight be compared with a 109+ kg super-heavyweight. The formula is Sinclair = Total × 10^(A·(log10(BW/B))²) when bodyweight is below world-record holder B, and equals the total otherwise. The IWF updates the A and B coefficients every Olympic cycle (4 years). A Sinclair above 400 indicates world-class level; Lasha Talakhadze (GEO, +109 kg) holds the highest Olympic totals ever lifted in absolute terms but rarely tops Sinclair charts since super-heavyweights are the reference.
Applications
Used in Olympic weightlifting to rank athletes across weight classes, settle "best lifter" awards at meets, compare performances between Olympic cycles, and in Brazil for CBLB rankings and Pan-American Games qualification standards.
FAQ
Sinclair vs Wilks? Sinclair is the official IWF standard for Olympic weightlifting; Wilks (and now IPF GL) is used in powerlifting. They are not interchangeable.
Why does it change every 4 years? The IWF recalibrates A and B based on the latest world-record holder in the heaviest class, keeping the coefficient calibrated to current performance.
Does Sinclair work for super-heavyweights? For lifters at or above the reference bodyweight B, Sinclair equals the raw total — no bonus is applied.
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The results provided by this tool are for general informational and educational purposes only and do not constitute professional, financial, medical, legal, tax or accounting advice. Always confirm important decisions with a qualified professional and official sources.