Progress against the field
Between Dallas 2025 and Boston 2026, Jessica Halpern pulled 5:13 ahead of the field.
The clock says 8:22 faster, but the races themselves got 3:09 quicker for everyone.
188 days between Miami 2026 and Boston 2026 is the longest gap compared here, and the second race was 2:17 behind the field.
How this is worked out ⓘ
A finish time moves for two reasons: the athlete, and the race — its course, its floor, its day. For each pair of races in a row in one category, we take everyone who raced both and use the middle of how much they moved (the median) as "the race". Whatever is left is the athlete. Doubles are compared only when the same two people raced both, and told as the pair's; relays are left out. A pair with fewer than 15 athletes in common is not shown.
Every race
3 races · 3 events
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Boston8 Oct 2026Individual Open · Women1:13:4114/475Beat 97%
↑ 188 days after Miami 2026 2:17 worse than the field Why ↓Close ↑
2:17 behind the field: 0:04 slower on the clock, against 2:13 faster for everyone.
The fieldCompare these two →2:13 faster This athlete0:04 slower -
Miami3 Apr 2026Individual Open · Women1:13:37 PB50/1320Beat 96%
↑ 133 days after Dallas 2025 7:30 better than the field Why ↓Close ↑
8:26 faster on the clock, and the race was 0:56 faster for everyone, so 7:30 of it was this athlete.
The fieldCompare these two →0:56 faster This athlete8:26 faster -
Dallas21 Nov 2025Individual Open · Women1:22:03251/1494Beat 83%