Progress against the field
From Rotterdam 2024 to Heerenveen 2025, Alwin Feenstra got 14:48 faster than the field.
Over the same races everyone got 9:27 quicker, so 24:15 faster on the clock looks better than it was.
The longest gap between two races compared here, 211 days between Amsterdam 2024 and Heerenveen 2025, still ended 3:59 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.
Every race
4 races · 4 events
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Heerenveen9 May 2025Individual Open · Men1:12:44 PB187/1217Beat 85%
↑ 211 days after Amsterdam 2024 3:59 better than the field Why ↓Close ↑
6:39 faster on the clock, and the race was 2:40 faster for everyone, so 3:59 of it was this athlete.
The fieldCompare these two →2:40 faster This athlete6:39 faster -
Rotterdam27 Feb 2025Doubles Open · Mixed1:14:02 PB138/707Beat 81%
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Amsterdam10 Oct 2024Individual Open · Men1:19:23192/659Beat 71%
↑ 187 days after Rotterdam 2024 10:49 better than the field Why ↓Close ↑
10:49 better than the field: 17:36 faster on the clock, against 6:47 faster for everyone.
The fieldCompare these two →6:47 faster This athlete17:36 faster -
Rotterdam6 Apr 2024Individual Open · Men1:36:59916/1380Beat 34%