Progress against the field
Riley Brock has dropped 2:33 behind the field from New York 2025 to Boston 2026.
Over the same races everyone got 3:32 slower, so 6:05 slower on the clock looks worse than it was.
363 days between New York 2025 and New York 2026 is the longest gap compared here, and the second race was 1:03 behind 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 Pro · Men1:24:05188/339Beat 45%
↑ 133 days after New York 2026 1:30 worse than the field Why ↓Close ↑
1:30 behind the field: 0:24 slower on the clock, against 1:06 faster for everyone.
The fieldCompare these two →1:06 faster This athlete0:24 slower -
New York28 May 2026Individual Pro · Men1:23:41215/455Beat 53%
↑ 363 days after New York 2025 1:03 worse than the field Why ↓Close ↑
5:41 slower on the clock in a race that was 4:38 slower for everyone: 1:03 lost to the field.
The fieldCompare these two →4:38 slower This athlete5:41 slower -
Chicago14 Nov 2025Doubles Open · Mixed1:11:52 PB137/1179Beat 88%
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New York30 May 2025Individual Pro · Men1:18:00 PB127/253Beat 50%