Progress against the field
Between Boston 2025 and Boston 2026, Jason Tottenham and Valerie Cooley lost 1:35 to the field.
The clock says 1:01 faster, but the races themselves got 2:36 quicker for everyone.
The longest gap between two races compared here, 244 days between Boston 2025 and New York 2026, still ended 1:14 ahead of 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. The summary above covers Doubles Open · Mixed, with Valerie Cooley, the one raced most; every comparison is in the list below.
Every race
12 races · 10 events
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Boston8 Oct 2026Doubles Open · Mixed1:03:0937/1096Beat 97%
↑ 133 days after New York 2026, with Valerie Cooley 2:49 worse than the field Why ↓Close ↑
2:49 behind the field: 0:40 slower on the clock, against 2:09 faster for everyone.
The fieldCompare these two →2:09 faster This pair0:40 slower -
Toronto1 Oct 2026Doubles Open · Mixed1:02:499/679Beat 99%
↑ 126 days after New York 2026, with Sara Newton-Smith 0:16 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:03 faster on the clock, yet the race was 1:19 faster for everyone, so 0:16 was lost on the field.
The fieldCompare these two →1:19 faster This pair1:03 faster -
New York28 May 2026Doubles Open · Mixed1:02:29 PB8/364Beat 98%
↑ 244 days after Boston 2025, with Valerie Cooley 1:14 better than the field Why ↓Close ↑
1:14 better than the field: 1:41 faster on the clock, against 0:27 faster for everyone.
The fieldCompare these two →0:27 faster This pair1:41 faster -
New York28 May 2026Doubles Open · Mixed1:03:5211/231Beat 95%
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Boston26 Sep 2025Doubles Open · Mixed1:04:1047/1259Beat 96%
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New York30 May 2025Doubles Open · Mixed1:04:5828/709Beat 96%
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Chicago Navy Pier16 Nov 2024Doubles Open · Mixed1:08:4351/390Beat 87%
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Toronto5 Oct 2024Doubles Open · Mixed1:04:3614/254Beat 95%
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New York1 Jun 2024Doubles Open · Mixed1:06:1410/358Beat 97%
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New York1 Jun 2024Relay · Mixed1:06:098/52Beat 85%
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Washington - North American Championships2 Mar 2024Doubles Open · Mixed1:08:1422/142Beat 85%
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New York1 Oct 2022Individual Open · Men1:31:05 PB122/273Beat 55%