Progress against the field
Between Dallas 2025 and Phoenix 2026, Cassy Byj lost 6:24 to the field.
Over the same races everyone got 3:53 quicker, so 2:31 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. The summary above covers Individual Open · Women, the one raced most; every comparison is in the list below.
Every race
9 races · 9 events
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Boston8 Oct 2026Doubles Pro · Women1:06:06 PB24/195Beat 88%
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Toronto1 Oct 2026Individual Pro · Women1:22:15 PB79/231Beat 66%
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New York28 May 2026Individual Pro · Women1:27:3066/182Beat 64%
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Ottawa14 May 2026Individual Pro · Women1:23:0433/114Beat 71%
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Miami3 Apr 2026Individual Pro · Women1:30:26126/253Beat 50%
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Phoenix29 Jan 2026Individual Open · Women1:20:0586/550Beat 84%
↑ 69 days after Dallas 2025 6:24 worse than the field Why ↓Close ↑
2:31 slower on the clock in a race that was 3:53 faster for everyone: 6:24 lost to the field.
The fieldCompare these two →3:53 faster This athlete2:31 slower -
Dallas21 Nov 2025Individual Open · Women1:17:34 PB123/1494Beat 92%
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Toronto3 Oct 2025Individual Open · Women1:24:5987/431Beat 80%
↑ 126 days after New York 2025 4:08 better than the field Why ↓Close ↑
4:08 better than the field: 4:36 faster on the clock, against 0:28 faster for everyone.
The fieldCompare these two →0:28 faster This athlete4:36 faster -
New York30 May 2025Individual Open · Women1:29:35142/450Beat 68%