Progress against the field
Gregory Lum has dropped 6:35 behind the field from Dallas 2025 to Mexico City 2026.
Over the same races everyone got 1:30 slower, so 8:05 slower on the clock looks worse than it was.
The longest gap between two races compared here, 188 days between Dallas 2025 and New York 2026, cost 10:22 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
3 races · 3 events
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Mexico City29 Oct 2026Individual Open · Men1:40:44321/595Beat 46%
↑ 154 days after New York 2026 3:47 better than the field Slower on the clock, ahead of the field Why ↓Close ↑
1:04 slower on the clock in a race that was 4:51 slower for everyone: 3:47 gained on the field, which the clock hides.
The fieldCompare these two →4:51 slower This athlete1:04 slower -
New York28 May 2026Individual Open · Men1:39:40604/1046Beat 42%
↑ 188 days after Dallas 2025 10:22 worse than the field Why ↓Close ↑
10:22 behind the field: 7:01 slower on the clock, against 3:21 faster for everyone.
The fieldCompare these two →3:21 faster This athlete7:01 slower -
Dallas21 Nov 2025Individual Open · Men1:32:39 PB1149/2078Beat 45%