Progress against the field
Rob Shirley has dropped 11:08 behind the field from New York 2025 to Boston 2026.
Over the same races everyone got 5:02 quicker, so 6:06 slower on the clock looks better than it was.
The longest gap between two races compared here, 244 days between Boston 2025 and New York 2026, cost 11:02 on 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
4 races · 4 events
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Boston8 Oct 2026Individual Open · Men1:37:29221/418Beat 47%
↑ 133 days after New York 2026 1:58 worse than the field Why ↓Close ↑
1:58 behind the field: 0:35 slower on the clock, against 1:23 faster for everyone.
The fieldCompare these two →1:23 faster This athlete0:35 slower -
New York28 May 2026Individual Open · Men1:36:54166/282Beat 41%
↑ 244 days after Boston 2025 11:02 worse than the field Why ↓Close ↑
8:58 slower on the clock in a race that was 2:04 faster for everyone: 11:02 lost to the field.
The fieldCompare these two →2:04 faster This athlete8:58 slower -
Boston26 Sep 2025Individual Open · Men1:27:56 PB696/1463Beat 52%
↑ 119 days after New York 2025 1:52 better than the field Why ↓Close ↑
3:27 faster on the clock, and the race was 1:35 faster for everyone, so 1:52 of it was this athlete.
The fieldCompare these two →1:35 faster This athlete3:27 faster -
New York30 May 2025Individual Open · Men1:31:23929/1462Beat 37%