CONVERT WIND-AIDED TIMES TO WIND-NEUTRAL EQUIVALENTS
SPRINTS · HURDLES · HORIZONTAL JUMPS
Wind only matters for these events. 400m+ races have minimal wind effect.
Time in seconds (e.g., 10.85 for 100m). For jumps, distance in meters (e.g., 7.42).
Positive = tailwind (helping). Negative = headwind (slowing). Range typically −5.0 to +5.0 m/s.
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SECONDS
The Science
Wind correction is based on the Mureika formula, published in 2001 and used by USATF and World Athletics statisticians. Every 1 m/s of tailwind makes a 100m roughly 0.046 seconds faster. Headwinds slow runners by the same amount. The effect scales with distance for sprints (the 200m gets about 1.5x the correction of 100m, not 2x, because half the race is around a 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 races, wind effect is minimal because runners face the wind from multiple directions throughout the race — this calculator doesn’t adjust those events.
Why this matters: A 100m run in 10.92 with a +3.5 m/s tailwind isn’t a record-eligible performance, even though it’s a fast time. The wind-neutral equivalent (~11.07) is the "true" measure of the athlete’s performance that day.
