Progress against the field
Between Amsterdam 2024 and Maastricht 2026, Dajo Heinen lost 20:46 to the field.
Over the same races everyone got 12:37 quicker, so 8:09 slower on the clock looks better than it was.
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 · 9 events
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Maastricht19 Sep 2026Individual Open · Men1:25:36187/394Beat 53%
↑ 128 days after Heerenveen 2026 7:48 worse than the field Why ↓Close ↑
7:48 behind the field: 9:14 slower on the clock, against 1:26 slower for everyone.
The fieldCompare these two →1:26 slower This athlete9:14 slower -
Heerenveen14 May 2026Individual Open · Men1:16:2294/315Beat 70%
↑ 29 days after Rotterdam 2026 2:35 worse than the field Why ↓Close ↑
2:35 behind the field: 0:48 slower on the clock, against 1:47 faster for everyone.
The fieldCompare these two →1:47 faster This athlete0:48 slower -
Rotterdam15 Apr 2026Individual Open · Men1:15:34111/556Beat 80%
↑ 124 days after Gent 2025 0:14 better than the field Why ↓Close ↑
0:14 better than the field: 4:12 faster on the clock, against 3:58 faster for everyone.
The fieldCompare these two →3:58 faster This athlete4:12 faster -
Amsterdam21 Jan 2026Individual Pro · Men1:25:39 PB184/243Beat 24%
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Gent12 Dec 2025Individual Open · Men1:19:46522/1428Beat 63%
↑ 84 days after Maastricht 2025 6:49 worse than the field Why ↓Close ↑
1:14 slower on the clock in a race that was 5:35 faster for everyone: 6:49 lost to the field.
The fieldCompare these two →5:35 faster This athlete1:14 slower -
Maastricht19 Sep 2025Individual Open · Men1:18:32147/584Beat 75%
↑ 133 days after Heerenveen 2025 1:25 worse than the field Why ↓Close ↑
3:07 slower on the clock in a race that was 1:42 slower for everyone: 1:25 lost to the field.
The fieldCompare these two →1:42 slower This athlete3:07 slower -
Heerenveen9 May 2025Individual Open · Men1:15:25 PB258/1217Beat 79%
↑ 71 days after Rotterdam 2025 1:00 better than the field Why ↓Close ↑
3:29 faster on the clock, and the race was 2:29 faster for everyone, so 1:00 of it was this athlete.
The fieldCompare these two →2:29 faster This athlete3:29 faster -
Rotterdam27 Feb 2025Individual Open · Men1:18:54160/600Beat 73%
↑ 140 days after Amsterdam 2024 3:23 worse than the field Why ↓Close ↑
1:27 slower on the clock in a race that was 1:56 faster for everyone: 3:23 lost to the field.
The fieldCompare these two →1:56 faster This athlete1:27 slower -
Amsterdam10 Oct 2024Individual Open · Men1:17:27383/1539Beat 75%