Progress against the field
Between New York 2025 and New York 2026, Chelsea Harms pulled 7:53 ahead of the field.
The clock says 6:42 faster, but the races themselves got 1:11 slower for everyone.
The largest gain on the field came from New York 2025 → Dallas 2025: 7:27 in 175 days.
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
6 races · 5 events
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Mexico City29 Oct 2026Doubles Open · Mixed1:11:2057/1531Beat 96%
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New York28 May 2026Doubles Open · Women1:25:36 PB101/315Beat 68%
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New York28 May 2026Individual Open · Women1:19:4625/365Beat 93%
↑ 188 days after Dallas 2025 0:26 better than the field Slower on the clock, ahead of the field Why ↓Close ↑
0:09 slower on the clock, but the race was 0:35 slower for everyone, so this was 0:26 better than the field.
The fieldCompare these two →0:35 slower This athlete0:09 slower -
Dallas21 Nov 2025Individual Open · Women1:19:37 PB165/1494Beat 89%
↑ 175 days after New York 2025 7:27 better than the field Why ↓Close ↑
The race was 0:36 slower for everyone and the clock still says 6:51 faster: 7:27 gained on the field.
The fieldCompare these two →0:36 slower This athlete6:51 faster -
New York30 May 2025Individual Open · Women1:26:2899/450Beat 78%
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Las Vegas1 Feb 2025Doubles Open · Mixed1:10:45 PB31/269Beat 89%