Progress against the field
Between Boston 2025 and Houston 2026, Eben Kostbar pulled 3:36 ahead of the field.
The clock says 11:22 faster, but the races themselves got 7:46 quicker for everyone.
The largest gain on the field came from Dallas 2025 → Anaheim 2025: 3:55 in 21 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.
Every race
7 races · 6 events
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Houston26 Mar 2026Individual Open · Men1:03:09 PB16/1243Beat 99%
↑ 34 days after Las Vegas 2026 2:42 better than the field Why ↓Close ↑
5:17 faster on the clock, and the race was 2:35 faster for everyone, so 2:42 of it was this athlete.
The fieldCompare these two →2:35 faster This athlete5:17 faster -
Las Vegas20 Feb 2026Individual Open · Men1:08:2651/1739Beat 97%
↑ 22 days after Phoenix 2026 3:58 worse than the field Why ↓Close ↑
2:12 slower on the clock in a race that was 1:46 faster for everyone: 3:58 lost to the field.
The fieldCompare these two →1:46 faster This athlete2:12 slower -
Phoenix29 Jan 2026Individual Open · Men1:06:1415/616Beat 98%
↑ 48 days after Anaheim 2025 2:53 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:42 faster on the clock looks better than it was: the race was 4:35 faster for everyone, which leaves this 2:53 behind the field.
The fieldCompare these two →4:35 faster This athlete1:42 faster -
Anaheim12 Dec 2025Relay · Men1:19:2832/74Beat 57%
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Anaheim12 Dec 2025Individual Open · Men1:07:5630/1835Beat 98%
↑ 21 days after Dallas 2025 3:55 better than the field Why ↓Close ↑
1:42 faster on the clock in a race that was 2:13 slower for everyone: 3:55 better than the field.
The fieldCompare these two →2:13 slower This athlete1:42 faster -
Dallas21 Nov 2025Individual Open · Men1:09:38116/2078Beat 94%
↑ 56 days after Boston 2025 3:50 better than the field Why ↓Close ↑
3:50 better than the field: 4:53 faster on the clock, against 1:03 faster for everyone.
The fieldCompare these two →1:03 faster This athlete4:53 faster -
Boston26 Sep 2025Individual Open · Men1:14:31190/1463Beat 87%