Lane Draw Converter

Converts outdoor 200m and 400m times between lanes. Outer lanes are faster, by an amount per lane that depends on the event and the sex of the athlete. The constants come from within-athlete comparisons — the same athlete running the same event out of different lanes — across Diamond League results from 2015-2025 and 26,000+ NCAA results from 2016-2026. Naive lane comparisons that do not control for who is in each lane overstate the effect several-fold, and the women's elite estimates are the least precise of the four.