Progress against the field
Between Dallas 2024 and New York 2026, ROBERT GRYGLEWSKI lost 2:43 to the field.
Over the same races everyone got 12:25 quicker, so 9:42 faster on the clock looks better than it was.
195 days between Houston 2025 and Boston 2025 is the longest gap compared here, and the second race was 11:53 better than the field.
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
6 races · 6 events
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New York28 May 2026Individual Open · Men1:23:21 PB233/1046Beat 78%
↑ 188 days after Dallas 2025 0:52 worse than the field Faster on the clock, behind the field Why ↓Close ↑
2:29 faster on the clock, yet the race was 3:21 faster for everyone, so 0:52 was lost on the field.
The fieldCompare these two →3:21 faster This athlete2:29 faster -
Houston26 Mar 2026Doubles Open · Mixed1:11:12 PB51/520Beat 90%
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Dallas21 Nov 2025Individual Open · Men1:25:50824/2078Beat 60%
↑ 56 days after Boston 2025 0:44 worse than the field Faster on the clock, behind the field Why ↓Close ↑
0:19 faster on the clock looks better than it was: the race was 1:03 faster for everyone, which leaves this 0:44 behind the field.
The fieldCompare these two →1:03 faster This athlete0:19 faster -
Boston26 Sep 2025Individual Open · Men1:26:09618/1463Beat 58%
↑ 195 days after Houston 2025 11:53 better than the field Why ↓Close ↑
16:27 faster on the clock, and the race was 4:34 faster for everyone, so 11:53 of it was this athlete.
The fieldCompare these two →4:34 faster This athlete16:27 faster -
Houston15 Mar 2025Individual Open · Men1:42:36715/1005Beat 29%
↑ 112 days after Dallas 2024 13:00 worse than the field Why ↓Close ↑
9:33 slower on the clock in a race that was 3:27 faster for everyone: 13:00 lost to the field.
The fieldCompare these two →3:27 faster This athlete9:33 slower -
Dallas23 Nov 2024Individual Open · Men1:33:03492/929Beat 47%