Progress against the field
Willem Rozendaal and Niklas Rozendaal have gained 3:37 on the field from Gent 2025 to Maastricht 2026.
Over the same races everyone got 3:00 quicker, so 6:37 faster on the clock looks better than it was.
The longest gap between two races compared here, 241 days between Amsterdam 2026 and Maastricht 2026, still ended 3:33 ahead of 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 Doubles Open · Men, with Niklas Rozendaal, the one raced most; every comparison is in the list below.
Every race
8 races · 8 events
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Valencia17 Oct 2026Individual Open · Men1:14:03 PB68/235Beat 71%
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Maastricht19 Sep 2026Doubles Open · Men1:06:28 PB77/457Beat 83%
↑ 241 days after Amsterdam 2026, with Niklas Rozendaal 3:33 better than the field Why ↓Close ↑
3:33 better than the field: 3:51 faster on the clock, against 0:18 faster for everyone.
The fieldCompare these two →0:18 faster This pair3:51 faster -
Heerenveen14 May 2026Individual Open · Men1:21:32406/966Beat 58%
↑ 49 days after Mechelen 2026 6:43 worse than the field Why ↓Close ↑
4:58 slower on the clock in a race that was 1:45 faster for everyone: 6:43 lost to the field.
The fieldCompare these two →1:45 faster This athlete4:58 slower -
Cologne16 Apr 2026Doubles Pro · Men1:19:11 PB361/526Beat 31%
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Mechelen26 Mar 2026Individual Open · Men1:16:34409/1363Beat 70%
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Amsterdam21 Jan 2026Doubles Open · Men1:10:19409/994Beat 59%
↑ 40 days after Gent 2025, with Niklas Rozendaal 0:04 better than the field Why ↓Close ↑
2:46 faster on the clock, and the race was 2:42 faster for everyone. Whatever changed, it changed for all of them.
The fieldCompare these two →2:42 faster This pair2:46 faster -
Gent12 Dec 2025Doubles Open · Men1:13:05577/1164Beat 50%
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Hamburg2 Oct 2025Doubles Open · Men1:18:24537/935Beat 43%