Progress against the field
Between Maastricht 2025 and Maastricht 2026, Joost Huisman and Sem Zonderwijk lost 3:36 to the field.
The clock says 1:12 faster, but the races themselves got 4:48 quicker for everyone.
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 Pro · Men, with Sem Zonderwijk, the one raced most; every comparison is in the list below.
Every race
15 races · 13 events
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Maastricht19 Sep 2026Doubles Pro · Men1:00:5370/316Beat 78%
↑ 93 days after Stockholm 2026, with Sem Zonderwijk 2:35 worse than the field Why ↓Close ↑
2:35 behind the field: 1:09 slower on the clock, against 1:26 faster for everyone.
The fieldCompare these two →1:26 faster This pair1:09 slower -
Stockholm18 Jun 2026Doubles Pro · Men59:44354/704Beat 50%
↑ 84 days after Mechelen 2026, with Sem Zonderwijk 0:56 better than the field Slower on the clock, ahead of the field Why ↓Close ↑
0:36 slower on the clock in a race that was 1:32 slower for everyone: 0:56 gained on the field, which the clock hides.
The fieldCompare these two →1:32 slower This pair0:36 slower -
Heerenveen14 May 2026Doubles Open · Men59:5526/535Beat 95%
↑ 29 days after Rotterdam 2026, with Hidde van der Beek 1:10 worse than the field Faster on the clock, behind the field Why ↓Close ↑
0:20 faster on the clock looks better than it was: the race was 1:30 faster for everyone, which leaves this 1:10 behind the field.
The fieldCompare these two →1:30 faster This pair0:20 faster -
Rotterdam15 Apr 2026Doubles Open · Men1:00:1533/674Beat 95%
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Mechelen26 Mar 2026Doubles Pro · Men59:08 PB102/493Beat 79%
↑ 64 days after Amsterdam 2026, with Sem Zonderwijk 0:16 worse than the field Faster on the clock, behind the field Why ↓Close ↑
0:27 faster on the clock looks better than it was: the race was 0:43 faster for everyone, which leaves this 0:16 behind the field.
The fieldCompare these two →0:43 faster This pair0:27 faster -
Amsterdam21 Jan 2026Doubles Pro · Men59:3511/94Beat 88%
↑ 124 days after Maastricht 2025, with Sem Zonderwijk 1:41 worse than the field Faster on the clock, behind the field Why ↓Close ↑
2:30 faster on the clock, yet the race was 4:11 faster for everyone, so 1:41 was lost on the field.
The fieldCompare these two →4:11 faster This pair2:30 faster -
Gent12 Dec 2025Relay · Men54:341/36Beat 97%
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Utrecht28 Nov 2025Relay · Men57:0012/38Beat 68%
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Utrecht28 Nov 2025Doubles Pro · Men1:12:5452/89Beat 42%
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Maastricht19 Sep 2025Doubles Pro · Men1:02:0523/131Beat 82%
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Heerenveen9 May 2025Individual Pro · Men1:14:52 PB53/216Beat 76%
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Belgium5 Apr 2025Doubles Open · Men58:48 PB29/898Beat 97%
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Rotterdam27 Feb 2025Doubles Open · Men1:15:14328/733Beat 55%
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Rotterdam27 Feb 2025Individual Open · Men1:14:53 PB88/600Beat 85%
↑ 140 days after Amsterdam 2024 7:31 better than the field Why ↓Close ↑
7:31 better than the field: 9:27 faster on the clock, against 1:56 faster for everyone.
The fieldCompare these two →1:56 faster This athlete9:27 faster -
Amsterdam10 Oct 2024Individual Open · Men1:24:20286/659Beat 57%