Progress against the field
Koen Janssen has gained 5:06 on the field from Maastricht 2025 to Maastricht 2026.
The clock says 12:41 faster, but the races themselves got 7:35 quicker for everyone.
The longest gap between two races compared here, 208 days between Maastricht 2025 and Rotterdam 2026, still ended 4:52 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 Individual Open · Men, the one raced most; every comparison is in the list below.
Every race
8 races · 7 events
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Valencia17 Oct 2026Doubles Open · Men58:5122/587Beat 96%
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Maastricht19 Sep 2026Doubles Open · Men59:2327/816Beat 97%
↑ 177 days after Mechelen 2026, with Jorik Naterop 0:41 worse than the field Why ↓Close ↑
0:41 behind the field: 1:02 slower on the clock, against 0:21 slower for everyone.
The fieldCompare these two →0:21 slower This pair1:02 slower -
Maastricht19 Sep 2026Individual Open · Men1:06:4527/546Beat 95%
↑ 128 days after Heerenveen 2026 1:20 worse than the field Why ↓Close ↑
1:20 behind the field: 2:46 slower on the clock, against 1:26 slower for everyone.
The fieldCompare these two →1:26 slower This athlete2:46 slower -
Heerenveen14 May 2026Individual Open · Men1:03:59 PB34/966Beat 97%
↑ 29 days after Rotterdam 2026 1:34 better than the field Why ↓Close ↑
3:21 faster on the clock, and the race was 1:47 faster for everyone, so 1:34 of it was this athlete.
The fieldCompare these two →1:47 faster This athlete3:21 faster -
Rotterdam15 Apr 2026Individual Open · Men1:07:2059/1192Beat 95%
↑ 208 days after Maastricht 2025 4:52 better than the field Why ↓Close ↑
4:52 better than the field: 12:06 faster on the clock, against 7:14 faster for everyone.
The fieldCompare these two →7:14 faster This athlete12:06 faster -
Mechelen26 Mar 2026Doubles Open · Men58:21 PB25/867Beat 97%
↑ 118 days after Utrecht 2025, with Jorik Naterop 1:43 better than the field Why ↓Close ↑
1:43 better than the field: 5:17 faster on the clock, against 3:34 faster for everyone.
The fieldCompare these two →3:34 faster This pair5:17 faster -
Utrecht28 Nov 2025Doubles Open · Men1:03:3887/879Beat 90%
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Maastricht19 Sep 2025Individual Open · Men1:19:26313/1352Beat 77%