Progress against the field
Jeroen van Ommen has dropped 1:02 behind the field from Amsterdam 2023 to Heerenveen 2026.
The clock says 20:22 faster, but the races themselves got 21:24 quicker for everyone.
The longest gap between two races compared here, 217 days between Heerenveen 2025 and Gent 2025, cost 9:38 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
9 races · 9 events
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Heerenveen14 May 2026Individual Open · Men1:42:20827/966Beat 14%
↑ 29 days after Rotterdam 2026 12:13 better than the field Why ↓Close ↑
12:13 better than the field: 14:00 faster on the clock, against 1:47 faster for everyone.
The fieldCompare these two →1:47 faster This athlete14:00 faster -
Rotterdam15 Apr 2026Individual Open · Men1:56:201111/1192Beat 7%
↑ 124 days after Gent 2025 3:58 worse than the field Why ↓Close ↑
3:58 behind the field: no different on the clock, against 3:58 faster for everyone.
The fieldCompare these two →3:58 faster This athleteno different -
Mechelen26 Mar 2026Doubles Open · Mixed1:26:23 PB667/962Beat 31%
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Gent12 Dec 2025Individual Open · Men1:56:201370/1428Beat 4%
↑ 217 days after Heerenveen 2025 9:38 worse than the field Why ↓Close ↑
9:38 behind the field: 6:38 slower on the clock, against 3:00 faster for everyone.
The fieldCompare these two →3:00 faster This athlete6:38 slower -
Heerenveen9 May 2025Individual Open · Men1:49:421129/1217Beat 7%
↑ 211 days after Amsterdam 2024 15:30 worse than the field Why ↓Close ↑
15:30 behind the field: 12:50 slower on the clock, against 2:40 faster for everyone.
The fieldCompare these two →2:40 faster This athlete12:50 slower -
Amsterdam10 Oct 2024Individual Open · Men1:36:52 PB1181/1539Beat 23%
↑ 187 days after Rotterdam 2024 0:41 better than the field Why ↓Close ↑
0:41 better than the field: 7:28 faster on the clock, against 6:47 faster for everyone.
The fieldCompare these two →6:47 faster This athlete7:28 faster -
Rotterdam6 Apr 2024Individual Open · Men1:44:201104/1380Beat 20%
↑ 77 days after Maastricht 2024 0:29 worse than the field Why ↓Close ↑
2:18 slower on the clock in a race that was 1:49 slower for everyone: 0:29 lost to the field.
The fieldCompare these two →1:49 slower This athlete2:18 slower -
Maastricht20 Jan 2024Individual Open · Men1:42:02652/781Beat 17%
↑ 77 days after Amsterdam 2023 15:39 better than the field Why ↓Close ↑
20:40 faster on the clock, and the race was 5:01 faster for everyone, so 15:39 of it was this athlete.
The fieldCompare these two →5:01 faster This athlete20:40 faster -
Amsterdam4 Nov 2023Individual Open · Men2:02:421041/1079Beat 4%