Progress against the field
Between Washington - North American Championships 2024 and Anaheim 2025, Scott Kooistra lost 9:17 to the field.
The clock says 1:14 slower, but the races themselves got 8:03 quicker for everyone.
321 days between Chicago Navy Pier 2024 and Toronto 2025 is the longest gap compared here, and the second race was 1:43 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
9 races · 7 events
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Anaheim12 Dec 2025Doubles Open · Mixed1:22:48 PB483/1394Beat 65%
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Anaheim12 Dec 2025Individual Open · Men1:18:49237/1835Beat 87%
↑ 70 days after Toronto 2025 7:51 worse than the field Why ↓Close ↑
7:51 behind the field: 3:39 slower on the clock, against 4:12 faster for everyone.
The fieldCompare these two →4:12 faster This athlete3:39 slower -
Toronto3 Oct 2025Individual Open · Men1:15:10 PB68/507Beat 87%
↑ 321 days after Chicago Navy Pier 2024 1:43 better than the field Why ↓Close ↑
1:21 faster on the clock in a race that was 0:22 slower for everyone: 1:43 better than the field.
The fieldCompare these two →0:22 slower This athlete1:21 faster -
Chicago Navy Pier16 Nov 2024Individual Open · Men1:16:31150/814Beat 82%
↑ 168 days after New York 2024 1:39 worse than the field Faster on the clock, behind the field Why ↓Close ↑
0:18 faster on the clock looks better than it was: the race was 1:57 faster for everyone, which leaves this 1:39 behind the field.
The fieldCompare these two →1:57 faster This athlete0:18 faster -
Toronto5 Oct 2024Doubles Pro · Men1:14:10 PB18/34Beat 47%
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New York1 Jun 2024Individual Open · Men1:16:49175/895Beat 80%
↑ 91 days after Washington - North American Championships 2024 1:30 worse than the field Faster on the clock, behind the field Why ↓Close ↑
0:46 faster on the clock looks better than it was: the race was 2:16 faster for everyone, which leaves this 1:30 behind the field.
The fieldCompare these two →2:16 faster This athlete0:46 faster -
Washington - North American Championships2 Mar 2024Individual Open · Men1:17:35144/498Beat 71%
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Washington D.C. Open North American ChampionshipsDate unknownRelay · Mixed1:38:2475/85Beat 12%
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Washington D.C. Open North American ChampionshipsDate unknownIndividual Open · Men1:17:24359/1544Beat 77%