Progress against the field
Rick Kooij has gained 3:12 on the field from Amsterdam 2024 to Utrecht 2025.
Over the same races everyone got 2:47 quicker, so 5:59 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, cost 1:15 on 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 Individual Open · Men, the one raced most; every comparison is in the list below.
Every race
6 races · 6 events
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Heerenveen14 May 2026Doubles Open · Mixed1:06:32 PB72/808Beat 91%
↑ 237 days after Maastricht 2025, with Kimberly Kooij 3:03 better than the field Why ↓Close ↑
10:11 faster on the clock, and the race was 7:08 faster for everyone, so 3:03 of it was this pair.
The fieldCompare these two →7:08 faster This pair10:11 faster -
Rotterdam15 Apr 2026Doubles Open · Men1:01:30 PB35/580Beat 94%
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Utrecht28 Nov 2025Individual Open · Men1:19:39 PB136/575Beat 76%
↑ 203 days after Heerenveen 2025 4:27 better than the field Why ↓Close ↑
4:34 faster on the clock, and the race was 0:07 faster for everyone, so 4:27 of it was this athlete.
The fieldCompare these two →0:07 faster This athlete4:34 faster -
Maastricht19 Sep 2025Doubles Open · Mixed1:16:43157/658Beat 76%
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Heerenveen9 May 2025Individual Open · Men1:24:13149/325Beat 54%
↑ 211 days after Amsterdam 2024 1:15 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:25 faster on the clock, yet the race was 2:40 faster for everyone, so 1:15 was lost on the field.
The fieldCompare these two →2:40 faster This athlete1:25 faster -
Amsterdam10 Oct 2024Individual Open · Men1:25:38767/1539Beat 50%