Progress against the field
From New York 2025 to Boston 2026, the field gained 4:02 on Tessa Kolthoff-Dobbs.
Over the same races everyone got 1:38 quicker, so 2:24 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
6 races · 5 events
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Boston8 Oct 2026Individual Open · Women1:19:4334/452Beat 93%
↑ 496 days after New York 2025 4:02 worse than the field Why ↓Close ↑
2:24 slower on the clock in a race that was 1:38 faster for everyone: 4:02 lost to the field.
The fieldCompare these two →1:38 faster This athlete2:24 slower -
New York28 May 2026Individual Pro · Women1:46:14116/182Beat 36%
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Ottawa14 May 2026Relay · Women1:06:495/64Beat 92%
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Ottawa14 May 2026Individual Pro · Women1:37:37 PB78/114Beat 32%
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Toronto3 Oct 2025Doubles Pro · Women1:14:11 PB18/98Beat 82%
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New York30 May 2025Individual Open · Women1:17:19 PB80/781Beat 90%