Progress against the field
Between Chicago Navy Pier 2024 and New York 2026, todd van zuiden lost 0:30 to the field.
The clock says 6:11 faster, but the races themselves got 6:41 quicker for everyone.
391 days between Chicago Navy Pier 2024 and Anaheim 2025 is the longest gap compared here, and the second race was 2:52 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 · Men1:35:57 PB203/308Beat 34%
↑ 119 days after Phoenix 2026 0:41 worse than the field Faster on the clock, behind the field Why ↓Close ↑
2:29 faster on the clock, yet the race was 3:10 faster for everyone, so 0:41 was lost on the field.
The fieldCompare these two →3:10 faster This athlete2:29 faster -
Phoenix29 Jan 2026Individual Open · Men1:38:26690/947Beat 27%
↑ 48 days after Anaheim 2025 2:41 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:54 faster on the clock, yet the race was 4:35 faster for everyone, so 2:41 was lost on the field.
The fieldCompare these two →4:35 faster This athlete1:54 faster -
Anaheim12 Dec 2025Individual Open · Men1:40:201070/1835Beat 42%
↑ 391 days after Chicago Navy Pier 2024 2:52 better than the field Why ↓Close ↑
The race was 1:04 slower for everyone and the clock still says 1:48 faster: 2:52 gained on the field.
The fieldCompare these two →1:04 slower This athlete1:48 faster -
Chicago Navy Pier16 Nov 2024Individual Open · Men1:42:08626/814Beat 23%
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Anaheim22 Apr 2023Individual Open · Men1:49:08234/294Beat 20%
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Chicago - North American Open Championship11 Feb 2023Individual Open · Men1:58:37322/354Beat 9%