Progress against the field
From Rotterdam 2025 to Heerenveen 2026, Kaj Merkelbag got 3:34 faster than the field.
Over the same races everyone got 12:28 quicker, so 16:02 faster on the clock looks better than it was.
204 days between Rotterdam 2025 and Maastricht 2025 is the longest gap compared here, and the second race was 6:09 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
7 races · 6 events
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Heerenveen14 May 2026Individual Open · Men1:26:38545/966Beat 44%
↑ 49 days after Mechelen 2026 0:04 better than the field Why ↓Close ↑
Moved with the field: 1:49 faster on the clock, against 1:45 faster for everyone.
The fieldCompare these two →1:45 faster This athlete1:49 faster -
Rotterdam15 Apr 2026Doubles Open · Mixed1:20:25 PB427/1047Beat 59%
↑ 84 days after Amsterdam 2026, with Iris Teunissen 0:02 better than the field Why ↓Close ↑
0:52 faster on the clock, and the race was 0:50 faster for everyone. Whatever changed, it changed for all of them.
The fieldCompare these two →0:50 faster This pair0:52 faster -
Mechelen26 Mar 2026Individual Open · Men1:28:27922/1363Beat 32%
↑ 64 days after Amsterdam 2026 6:02 worse than the field Why ↓Close ↑
3:38 slower on the clock in a race that was 2:24 faster for everyone: 6:02 lost to the field.
The fieldCompare these two →2:24 faster This athlete3:38 slower -
Amsterdam21 Jan 2026Doubles Open · Mixed1:21:17289/506Beat 43%
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Amsterdam21 Jan 2026Individual Open · Men1:24:49 PB879/1620Beat 46%
↑ 124 days after Maastricht 2025 15:41 better than the field Why ↓Close ↑
15:41 better than the field: 23:40 faster on the clock, against 7:59 faster for everyone.
The fieldCompare these two →7:59 faster This athlete23:40 faster -
Maastricht19 Sep 2025Individual Open · Men1:48:291145/1352Beat 15%
↑ 204 days after Rotterdam 2025 6:09 worse than the field Why ↓Close ↑
6:09 behind the field: 5:49 slower on the clock, against 0:20 faster for everyone.
The fieldCompare these two →0:20 faster This athlete5:49 slower -
Rotterdam27 Feb 2025Individual Open · Men1:42:401083/1283Beat 16%