Progress against the field
From Boston 2025 to New York 2026, the field gained 7:33 on Kristin Surowiec.
Over the same races everyone got 5:23 quicker, so 2:10 slower on the clock looks better than it was.
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
8 races · 7 events
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Tampa22 Oct 2026Individual Pro · Women1:24:09 PB92/205Beat 55%
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Boston8 Oct 2026Individual Pro · Women1:26:42115/224Beat 49%
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New York28 May 2026Individual Open · Women1:21:1293/1098Beat 92%
↑ 55 days after Miami 2026 2:16 worse than the field Why ↓Close ↑
2:16 behind the field: 2:44 slower on the clock, against 0:28 slower for everyone.
The fieldCompare these two →0:28 slower This athlete2:44 slower -
Miami3 Apr 2026Individual Open · Women1:18:28 PB121/1320Beat 91%
↑ 154 days after Atlanta 2025 0:56 worse than the field Faster on the clock, behind the field Why ↓Close ↑
2:29 faster on the clock, yet the race was 3:25 faster for everyone, so 0:56 was lost on the field.
The fieldCompare these two →3:25 faster This athlete2:29 faster -
Atlanta31 Oct 2025Individual Open · Women1:20:5788/660Beat 87%
↑ 35 days after Boston 2025 4:21 worse than the field Why ↓Close ↑
1:55 slower on the clock in a race that was 2:26 faster for everyone: 4:21 lost to the field.
The fieldCompare these two →2:26 faster This athlete1:55 slower -
Boston26 Sep 2025Doubles Open · Women1:10:14 PB49/1424Beat 97%
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Boston26 Sep 2025Individual Open · Women1:19:02140/1290Beat 89%
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Miami BeachDate unknownIndividual Open · Women1:22:47176/684Beat 74%