Progress against the field
Between Las Vegas 2026 and Boston 2026, Kamryn Lach lost 4:53 to the field.
Over the same races everyone got 2:32 quicker, so 2:21 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
3 races · 3 events
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Boston8 Oct 2026Individual Open · Women1:34:28259/722Beat 64%
↑ 230 days after Las Vegas 2026 4:53 worse than the field Why ↓Close ↑
2:21 slower on the clock in a race that was 2:32 faster for everyone: 4:53 lost to the field.
The fieldCompare these two →2:32 faster This athlete2:21 slower -
Las Vegas20 Feb 2026Individual Open · Women1:32:07 PB649/1796Beat 64%
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Dallas21 Nov 2025Doubles Open · Women1:29:25 PB714/1529Beat 53%