Progress against the field
Between Toronto 2024 and Chicago 2025, Krystal Dayton lost 6:44 to the field.
Over the same races everyone got 9:28 quicker, so 2:44 faster on the clock looks better than it was.
The largest gain on the field came from New York 2025 → Chicago 2025: 3:56 in 168 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. The summary above covers Individual Open · Women, the one raced most; every comparison is in the list below.
Every race
13 races · 9 events
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Toronto1 Oct 2026Relay · Mixed1:06:107/56Beat 88%
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Ottawa14 May 2026Doubles Open · Mixed1:08:46 PB16/184Beat 91%
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Ottawa14 May 2026Individual Pro · Women1:24:48 PB41/114Beat 64%
↑ 223 days after Toronto 2025 13:22 better than the field Why ↓Close ↑
13:22 better than the field: 16:53 faster on the clock, against 3:31 faster for everyone.
The fieldCompare these two →3:31 faster This athlete16:53 faster -
Chicago14 Nov 2025Doubles Open · Women1:23:18 PB495/1539Beat 68%
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Chicago14 Nov 2025Individual Open · Women1:21:53228/1127Beat 80%
↑ 168 days after New York 2025 3:56 better than the field Why ↓Close ↑
3:56 better than the field: 7:15 faster on the clock, against 3:19 faster for everyone.
The fieldCompare these two →3:19 faster This athlete7:15 faster -
Toronto3 Oct 2025Doubles Open · Women1:36:16450/821Beat 45%
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Toronto3 Oct 2025Individual Pro · Women1:41:4151/71Beat 28%
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New York30 May 2025Individual Open · Women1:29:08138/450Beat 69%
↑ 118 days after Las Vegas 2025 8:38 worse than the field Why ↓Close ↑
3:37 slower on the clock in a race that was 5:01 faster for everyone: 8:38 lost to the field.
The fieldCompare these two →5:01 faster This athlete3:37 slower -
Las Vegas1 Feb 2025Individual Open · Women1:25:31122/326Beat 63%
↑ 77 days after Chicago Navy Pier 2024 5:04 worse than the field Why ↓Close ↑
7:56 slower on the clock in a race that was 2:52 slower for everyone: 5:04 lost to the field.
The fieldCompare these two →2:52 slower This athlete7:56 slower -
Chicago Navy Pier16 Nov 2024Individual Open · Women1:17:35 PB59/599Beat 90%
↑ 42 days after Toronto 2024 3:02 better than the field Why ↓Close ↑
7:02 faster on the clock, and the race was 4:00 faster for everyone, so 3:02 of it was this athlete.
The fieldCompare these two →4:00 faster This athlete7:02 faster -
Toronto5 Oct 2024Individual Open · Women1:24:3797/439Beat 78%
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Miami BeachDate unknownIndividual Open · Women1:21:12152/684Beat 78%
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Miami BeachDate unknownRelay · Women1:19:0311/42Beat 74%