Progress against the field
From Rotterdam 2023 to Heerenveen 2026, the field gained 4:15 on Robert Van Der Zanden.
Over the same races everyone got 19:19 quicker, so 15:04 faster on the clock looks better than it was.
370 days between Heerenveen 2025 and Heerenveen 2026 is the longest gap compared here, and the second race was 6:30 behind 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
20 races · 16 events
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Maastricht19 Sep 2026Individual Pro · Men1:13:53140/399Beat 65%
↑ 93 days after Stockholm 2026 4:18 worse than the field Why ↓Close ↑
3:43 slower on the clock in a race that was 0:35 faster for everyone: 4:18 lost to the field.
The fieldCompare these two →0:35 faster This athlete3:43 slower -
Stockholm18 Jun 2026Doubles Open · Mixed1:03:34473/825Beat 43%
↑ 188 days after Gent 2025, with Sandra Muller 1:10 worse than the field Why ↓Close ↑
1:10 behind the field: 1:26 slower on the clock, against 0:16 slower for everyone.
The fieldCompare these two →0:16 slower This pair1:26 slower -
Stockholm18 Jun 2026Doubles Pro · Men1:01:09414/704Beat 41%
↑ 35 days after Heerenveen 2026, with Michel Klaasse 1:17 better than the field Slower on the clock, ahead of the field Why ↓Close ↑
1:03 slower on the clock, but the race was 2:20 slower for everyone, so this was 1:17 better than the field.
The fieldCompare these two →2:20 slower This pair1:03 slower -
Stockholm18 Jun 2026Individual Pro · Men1:10:10451/767Beat 41%
↑ 148 days after Amsterdam 2026 2:56 worse than the field Why ↓Close ↑
2:56 behind the field: 3:43 slower on the clock, against 0:47 slower for everyone.
The fieldCompare these two →0:47 slower This athlete3:43 slower -
Heerenveen14 May 2026Doubles Pro · Men1:00:06 PB58/315Beat 82%
↑ 29 days after Rotterdam 2026, with Michel Klaasse 2:19 better than the field Why ↓Close ↑
2:56 faster on the clock, and the race was 0:37 faster for everyone, so 2:19 of it was this pair.
The fieldCompare these two →0:37 faster This pair2:56 faster -
Heerenveen14 May 2026Individual Open · Men1:05:1956/966Beat 94%
↑ 370 days after Heerenveen 2025 6:30 worse than the field Why ↓Close ↑
1:40 slower on the clock in a race that was 4:50 faster for everyone: 6:30 lost to the field.
The fieldCompare these two →4:50 faster This athlete1:40 slower -
Rotterdam15 Apr 2026Doubles Pro · Men1:03:02101/385Beat 74%
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Amsterdam21 Jan 2026Individual Pro · Men1:06:27 PB17/107Beat 84%
↑ 54 days after Utrecht 2025 0:25 better than the field Why ↓Close ↑
0:25 better than the field: 5:01 faster on the clock, against 4:36 faster for everyone.
The fieldCompare these two →4:36 faster This athlete5:01 faster -
Gent12 Dec 2025Doubles Open · Mixed1:02:08 PB30/863Beat 97%
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Utrecht28 Nov 2025Individual Pro · Men1:11:2821/102Beat 79%
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Stuttgart31 Oct 2025Doubles Pro · Men1:01:4770/388Beat 82%
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Heerenveen9 May 2025Doubles Open · Men57:30 PB9/529Beat 98%
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Heerenveen9 May 2025Individual Open · Men1:03:39 PB19/1217Beat 98%
↑ 34 days after Belgium 2025 0:37 better than the field Why ↓Close ↑
3:05 faster on the clock, and the race was 2:28 faster for everyone, so 0:37 of it was this athlete.
The fieldCompare these two →2:28 faster This athlete3:05 faster -
Belgium5 Apr 2025Individual Open · Men1:06:4488/1638Beat 95%
↑ 112 days after Frankfurt 2024 0:57 better than the field Why ↓Close ↑
2:27 faster on the clock, and the race was 1:30 faster for everyone, so 0:57 of it was this athlete.
The fieldCompare these two →1:30 faster This athlete2:27 faster -
Rotterdam27 Feb 2025Doubles Open · Men1:22:32546/733Beat 26%
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Frankfurt14 Dec 2024Individual Open · Men1:09:11155/1480Beat 90%
↑ 65 days after Amsterdam 2024 2:41 worse than the field Why ↓Close ↑
2:00 slower on the clock in a race that was 0:41 faster for everyone: 2:41 lost to the field.
The fieldCompare these two →0:41 faster This athlete2:00 slower -
Amsterdam10 Oct 2024Individual Open · Men1:07:1183/1539Beat 95%
↑ 187 days after Rotterdam 2024 0:45 worse than the field Faster on the clock, behind the field Why ↓Close ↑
6:02 faster on the clock looks better than it was: the race was 6:47 faster for everyone, which leaves this 0:45 behind the field.
The fieldCompare these two →6:47 faster This athlete6:02 faster -
Rotterdam6 Apr 2024Individual Open · Men1:13:1377/1380Beat 94%
↑ 322 days after Rotterdam 2023 4:07 better than the field Why ↓Close ↑
4:07 better than the field: 7:10 faster on the clock, against 3:03 faster for everyone.
The fieldCompare these two →3:03 faster This athlete7:10 faster -
Rotterdam20 May 2023Individual Open · Men1:20:23150/575Beat 74%
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World Championships NiceDate unknownIndividual Pro · Men1:21:22648/830Beat 22%