Progress against the field
Between Rotterdam 2024 and Berlin 2026, Hendrik-Jan Van De Kaa lost 16:07 to the field.
The clock says 1:27 faster, but the races themselves got 17:34 quicker for everyone.
The longest gap between two races compared here, 187 days between Rotterdam 2024 and Amsterdam 2024, cost 1:40 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.
Every race
10 races · 10 events
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Berlin22 May 2026Individual Open · Men1:15:50189/993Beat 81%
↑ 8 days after Heerenveen 2026 2:16 better than the field Slower on the clock, ahead of the field Why ↓Close ↑
0:27 slower on the clock, but the race was 2:43 slower for everyone, so this was 2:16 better than the field.
The fieldCompare these two →2:43 slower This athlete0:27 slower -
Heerenveen14 May 2026Individual Open · Men1:15:23135/490Beat 72%
↑ 29 days after Rotterdam 2026 3:15 worse than the field Why ↓Close ↑
1:28 slower on the clock in a race that was 1:47 faster for everyone: 3:15 lost to the field.
The fieldCompare these two →1:47 faster This athlete1:28 slower -
Rotterdam15 Apr 2026Individual Open · Men1:13:5594/570Beat 84%
↑ 20 days after Mechelen 2026 1:21 better than the field Why ↓Close ↑
The race was 0:21 slower for everyone and the clock still says 1:00 faster: 1:21 gained on the field.
The fieldCompare these two →0:21 slower This athlete1:00 faster -
Mechelen26 Mar 2026Individual Open · Men1:14:55161/561Beat 71%
↑ 64 days after Amsterdam 2026 1:01 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:23 faster on the clock looks better than it was: the race was 2:24 faster for everyone, which leaves this 1:01 behind the field.
The fieldCompare these two →2:24 faster This athlete1:23 faster -
Amsterdam21 Jan 2026Individual Open · Men1:16:18429/1620Beat 74%
↑ 124 days after Maastricht 2025 5:13 worse than the field Faster on the clock, behind the field Why ↓Close ↑
2:46 faster on the clock looks better than it was: the race was 7:59 faster for everyone, which leaves this 5:13 behind the field.
The fieldCompare these two →7:59 faster This athlete2:46 faster -
Maastricht19 Sep 2025Individual Open · Men1:19:04297/1352Beat 78%
↑ 126 days after Berlin 2025 2:18 worse than the field Why ↓Close ↑
6:22 slower on the clock in a race that was 4:04 slower for everyone: 2:18 lost to the field.
The fieldCompare these two →4:04 slower This athlete6:22 slower -
Berlin16 May 2025Individual Open · Men1:12:42250/748Beat 67%
↑ 78 days after Rotterdam 2025 0:01 better than the field Why ↓Close ↑
3:50 faster on the clock, and the race was 3:49 faster for everyone. Whatever changed, it changed for all of them.
The fieldCompare these two →3:49 faster This athlete3:50 faster -
Rotterdam27 Feb 2025Individual Open · Men1:16:32254/1283Beat 80%
↑ 140 days after Amsterdam 2024 6:18 worse than the field Why ↓Close ↑
6:18 behind the field: 4:22 slower on the clock, against 1:56 faster for everyone.
The fieldCompare these two →1:56 faster This athlete4:22 slower -
Amsterdam10 Oct 2024Individual Open · Men1:12:10 PB197/1539Beat 87%
↑ 187 days after Rotterdam 2024 1:40 worse than the field Faster on the clock, behind the field Why ↓Close ↑
5:07 faster on the clock, yet the race was 6:47 faster for everyone, so 1:40 was lost on the field.
The fieldCompare these two →6:47 faster This athlete5:07 faster -
Rotterdam6 Apr 2024Individual Open · Men1:17:17159/1380Beat 89%