What this does: Enter the time you ran (or distance you jumped) plus the wind reading at the meet, and the calculator returns your wind-neutral equivalent. World Athletics rules: any tailwind over +2.0 m/s makes a sprint or horizontal-jump performance “wind-aided” — it won’t count for records even if it’s legal in the meet.
The Science
Wind correction uses the Mureika model (2001), the same approach USATF and World Athletics statisticians use. Every 1 m/s of tailwind makes a 100m roughly 0.046 seconds faster; headwinds slow runners by the same amount. The 200m gets about 1.5× the 100m correction (not 2×, since half the race is on the curve).
For long jump and triple jump, the effect is on horizontal distance — roughly 0.06m per m/s of tailwind for long jump, slightly less for triple jump.
For 400m and longer, wind effect is minimal because runners meet the wind from every direction, so this tool doesn’t adjust those events.
Why it matters: a 100m of 10.92 with a +3.5 m/s tailwind isn’t record-eligible even though it’s fast. The wind-neutral equivalent (~11.08) is the truer measure of that day’s performance.
