Progress against the field
From Amsterdam 2023 to Heerenveen 2026, the field gained 1:56 on Lewienus welboren.
Over the same races everyone got 16:20 quicker, so 14:24 faster on the clock looks better than it was.
341 days between Amsterdam 2023 and Amsterdam 2024 is the longest gap compared here, and the second race was 1:45 better than 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
7 races · 7 events
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Heerenveen14 May 2026Individual Open · Men1:06:56 PB74/966Beat 92%
↑ 167 days after Utrecht 2025 1:52 worse than the field Faster on the clock, behind the field Why ↓Close ↑
5:15 faster on the clock looks better than it was: the race was 7:07 faster for everyone, which leaves this 1:52 behind the field.
The fieldCompare these two →7:07 faster This athlete5:15 faster -
Rotterdam15 Apr 2026Doubles Pro · Men1:10:55242/385Beat 37%
↑ 84 days after Amsterdam 2026, with Roy De Ruyter 6:13 worse than the field Why ↓Close ↑
5:23 slower on the clock in a race that was 0:50 faster for everyone: 6:13 lost to the field.
The fieldCompare these two →0:50 faster This pair5:23 slower -
Amsterdam21 Jan 2026Doubles Pro · Men1:05:32 PB135/298Beat 55%
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Utrecht28 Nov 2025Individual Open · Men1:12:11108/1337Beat 92%
↑ 274 days after Rotterdam 2025 1:15 worse than the field Why ↓Close ↑
1:15 behind the field: 0:27 slower on the clock, against 0:48 faster for everyone.
The fieldCompare these two →0:48 faster This athlete0:27 slower -
Rotterdam27 Feb 2025Individual Open · Men1:11:44118/1283Beat 91%
↑ 140 days after Amsterdam 2024 0:34 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:22 faster on the clock looks better than it was: the race was 1:56 faster for everyone, which leaves this 0:34 behind the field.
The fieldCompare these two →1:56 faster This athlete1:22 faster -
Amsterdam10 Oct 2024Individual Open · Men1:13:06228/1539Beat 85%
↑ 341 days after Amsterdam 2023 1:45 better than the field Why ↓Close ↑
8:14 faster on the clock, and the race was 6:29 faster for everyone, so 1:45 of it was this athlete.
The fieldCompare these two →6:29 faster This athlete8:14 faster -
Amsterdam4 Nov 2023Individual Open · Men1:21:20268/1079Beat 75%