Progress against the field
From Chicago 2025 to Phoenix 2026, Kelsey Dierikx got 4:36 faster than the field.
The races themselves barely changed, so 5:03 faster on the clock is the real picture.
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
4 races · 3 events
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Las Vegas20 Feb 2026Doubles Open · Mixed1:06:42 PB112/2139Beat 95%
↑ 22 days after Phoenix 2026, with Garret Strand 0:34 better than the field Why ↓Close ↑
The race was 0:06 slower for everyone and the clock still says 0:28 faster: 0:34 gained on the field.
The fieldCompare these two →0:06 slower This pair0:28 faster -
Phoenix29 Jan 2026Individual Open · Women1:06:17 PB3/631Beat 100%
↑ 76 days after Chicago 2025 4:36 better than the field Why ↓Close ↑
5:03 faster on the clock, and the race was 0:27 faster for everyone, so 4:36 of it was this athlete.
The fieldCompare these two →0:27 faster This athlete5:03 faster -
Phoenix29 Jan 2026Doubles Open · Mixed1:07:1078/1059Beat 93%
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Chicago14 Nov 2025Individual Open · Women1:11:2033/1127Beat 97%