Progress against the field
From Frankfurt 2025 to Rotterdam 2026, the field gained 1:19 on Peter de Gruijl.
The clock says 2:53 faster, but the races themselves got 4:12 quicker for everyone.
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
26 races · 17 events
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Maastricht19 Sep 2026Doubles Open · Men57:5215/816Beat 98%
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Maastricht19 Sep 2026Doubles Pro · Men56:52 PB21/316Beat 93%
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Heerenveen14 May 2026Doubles Open · Mixed1:00:5518/461Beat 96%
↑ 29 days after Rotterdam 2026, with Annette De Wolf 3:04 worse than the field Why ↓Close ↑
3:04 behind the field: 0:52 slower on the clock, against 2:12 faster for everyone.
The fieldCompare these two →2:12 faster This pair0:52 slower -
Heerenveen14 May 2026Doubles Pro · Men58:2837/315Beat 88%
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Rotterdam15 Apr 2026Doubles Open · Mixed1:00:03 PB12/1047Beat 99%
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Rotterdam15 Apr 2026Individual Open · Men1:03:35 PB15/556Beat 97%
↑ 124 days after Frankfurt 2025 1:19 worse than the field Faster on the clock, behind the field Why ↓Close ↑
2:53 faster on the clock, yet the race was 4:12 faster for everyone, so 1:19 was lost on the field.
The fieldCompare these two →4:12 faster This athlete2:53 faster -
Mechelen26 Mar 2026Relay · Men51:051/53Beat 98%
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Mechelen26 Mar 2026Individual Pro · Men1:08:54145/457Beat 68%
↑ 64 days after Amsterdam 2026 4:43 worse than the field Why ↓Close ↑
4:43 behind the field: 2:24 slower on the clock, against 2:19 faster for everyone.
The fieldCompare these two →2:19 faster This athlete2:24 slower -
Amsterdam21 Jan 2026Relay · Mixed53:351/68Beat 99%
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Amsterdam21 Jan 2026Individual Pro · Men1:06:30 PB43/243Beat 82%
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Frankfurt12 Dec 2025Individual Open · Men1:06:2866/1883Beat 97%
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Utrecht28 Nov 2025Individual Open · Men1:05:2010/575Beat 98%
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Valencia17 Oct 2025Individual Open · Men1:05:4016/455Beat 97%
↑ 28 days after Maastricht 2025 5:02 worse than the field Faster on the clock, behind the field Why ↓Close ↑
0:55 faster on the clock looks better than it was: the race was 5:57 faster for everyone, which leaves this 5:02 behind the field.
The fieldCompare these two →5:57 faster This athlete0:55 faster -
Maastricht19 Sep 2025Doubles Pro · Men58:5613/131Beat 90%
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Maastricht19 Sep 2025Individual Open · Men1:06:3535/1352Beat 97%
↑ 133 days after Heerenveen 2025 9:49 better than the field Why ↓Close ↑
The race was 1:42 slower for everyone and the clock still says 8:07 faster: 9:49 gained on the field.
The fieldCompare these two →1:42 slower This athlete8:07 faster -
Berlin16 May 2025Doubles Open · Men57:35 PB66/1325Beat 95%
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Heerenveen9 May 2025Individual Open · Men1:14:4245/325Beat 86%
↑ 71 days after Rotterdam 2025 9:38 worse than the field Why ↓Close ↑
7:09 slower on the clock in a race that was 2:29 faster for everyone: 9:38 lost to the field.
The fieldCompare these two →2:29 faster This athlete7:09 slower -
Rotterdam27 Feb 2025Individual Open · Men1:07:3345/1283Beat 97%
↑ 404 days after Maastricht 2024 20:04 better than the field Why ↓Close ↑
20:04 better than the field: 22:19 faster on the clock, against 2:15 faster for everyone.
The fieldCompare these two →2:15 faster This athlete22:19 faster -
Rotterdam27 Feb 2025Individual Open · Men1:08:5626/600Beat 96%
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Amsterdam10 Oct 2024Doubles Open · Mixed1:05:2221/376Beat 94%
↑ 341 days after Amsterdam 2023, with Marjolein Kerkhoven 0:26 worse than the field Faster on the clock, behind the field Why ↓Close ↑
4:10 faster on the clock looks better than it was: the race was 4:36 faster for everyone, which leaves this 0:26 behind the field.
The fieldCompare these two →4:36 faster This pair4:10 faster -
Rotterdam6 Apr 2024Doubles Open · Men1:04:2046/722Beat 94%
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Rotterdam6 Apr 2024Individual Pro · Men1:18:0639/149Beat 74%
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Maastricht20 Jan 2024Individual Open · Men1:29:52465/781Beat 41%
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Maastricht20 Jan 2024Doubles Open · Men1:26:45236/288Beat 18%
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Amsterdam4 Nov 2023Doubles Open · Mixed1:09:3224/283Beat 92%
↑ 168 days after Rotterdam 2023, with Marjolein Kerkhoven 16:18 better than the field Why ↓Close ↑
16:48 faster on the clock, and the race was 0:30 faster for everyone, so 16:18 of it was this pair.
The fieldCompare these two →0:30 faster This pair16:48 faster -
Rotterdam20 May 2023Doubles Open · Mixed1:26:20120/187Beat 36%