Progress against the field
Between Amsterdam 2021 and Utrecht 2025, Martijn Jansen lost 28:31 to the field.
Over the same races everyone got 7:32 quicker, so 20:59 slower on the clock looks better than it was.
The longest gap between two races compared here, 1133 days between Amsterdam 2022 and Utrecht 2025, cost 27:18 on 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
13 races · 13 events
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Washington DC3 Sep 2026Doubles Open · Mixed1:11:15 PB48/594Beat 92%
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Heerenveen14 May 2026Doubles Open · Men1:24:40420/535Beat 22%
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Rotterdam15 Apr 2026Doubles Pro · Men1:21:17 PB330/385Beat 14%
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Utrecht28 Nov 2025Individual Open · Men1:45:591102/1337Beat 18%
↑ 1133 days after Amsterdam 2022 27:18 worse than the field Why ↓Close ↑
27:18 behind the field: 24:03 slower on the clock, against 3:15 faster for everyone.
The fieldCompare these two →3:15 faster This athlete24:03 slower -
Cologne10 Apr 2025Doubles Open · Men1:03:10 PB23/149Beat 85%
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Belgium5 Apr 2025Doubles Open · Men1:03:29103/898Beat 89%
↑ 364 days after Rotterdam 2024, with Remco Steegs 2:44 better than the field Why ↓Close ↑
7:04 faster on the clock, and the race was 4:20 faster for everyone, so 2:44 of it was this pair.
The fieldCompare these two →4:20 faster This pair7:04 faster -
Rotterdam27 Feb 2025Doubles Open · Men1:08:43149/733Beat 80%
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Amsterdam10 Oct 2024Doubles Open · Men1:14:08379/855Beat 56%
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Rotterdam6 Apr 2024Doubles Open · Men1:10:33168/722Beat 77%
↑ 77 days after Maastricht 2024, with Remco Steegs 1:38 better than the field Why ↓Close ↑
1:38 better than the field: 3:48 faster on the clock, against 2:10 faster for everyone.
The fieldCompare these two →2:10 faster This pair3:48 faster -
Maastricht20 Jan 2024Doubles Open · Men1:14:21123/288Beat 57%
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Amsterdam22 Oct 2022Individual Open · Men1:21:56 PB177/561Beat 68%
↑ 363 days after Amsterdam 2021 1:13 worse than the field Faster on the clock, behind the field Why ↓Close ↑
3:04 faster on the clock looks better than it was: the race was 4:17 faster for everyone, which leaves this 1:13 behind the field.
The fieldCompare these two →4:17 faster This athlete3:04 faster -
Amsterdam24 Oct 2021Individual Open · Men1:25:0077/192Beat 60%
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KölnDate unknownDoubles Open · Men1:04:1867/558Beat 88%