Progress against the field
Between Rotterdam 2025 and Amsterdam 2026, Justin Schoonderwoerd and Roy Van Straaten lost 3:21 to the field.
Over the same races everyone got 5:08 quicker, so 1:47 faster on the clock looks better than it was.
274 days between Rotterdam 2025 and Utrecht 2025 is the longest gap compared here, and the second race was 1:24 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 Doubles Open · Men, with Roy Van Straaten, the one raced most; every comparison is in the list below.
Every race
10 races · 9 events
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Maastricht19 Sep 2026Doubles Open · Men1:02:10 PB75/816Beat 91%
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Maastricht19 Sep 2026Doubles Open · Mixed1:24:22 PB229/444Beat 48%
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Heerenveen14 May 2026Doubles Pro · Men1:13:06 PB201/315Beat 36%
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Rotterdam15 Apr 2026Doubles Open · Men1:05:42119/674Beat 82%
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Amsterdam21 Jan 2026Doubles Open · Men1:08:37326/994Beat 67%
↑ 54 days after Utrecht 2025, with Roy Van Straaten 1:57 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:33 faster on the clock looks better than it was: the race was 3:30 faster for everyone, which leaves this 1:57 behind the field.
The fieldCompare these two →3:30 faster This pair1:33 faster -
Gent12 Dec 2025Individual Open · Men1:18:55 PB477/1428Beat 67%
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Utrecht28 Nov 2025Doubles Open · Men1:10:10237/879Beat 73%
↑ 274 days after Rotterdam 2025, with Roy Van Straaten 1:24 worse than the field Faster on the clock, behind the field Why ↓Close ↑
0:14 faster on the clock looks better than it was: the race was 1:38 faster for everyone, which leaves this 1:24 behind the field.
The fieldCompare these two →1:38 faster This pair0:14 faster -
Heerenveen9 May 2025Doubles Open · Men1:09:40151/529Beat 72%
↑ 211 days after Amsterdam 2024, with Jorrit van Dam 2:14 better than the field Why ↓Close ↑
2:14 better than the field: 5:51 faster on the clock, against 3:37 faster for everyone.
The fieldCompare these two →3:37 faster This pair5:51 faster -
Rotterdam27 Feb 2025Doubles Open · Men1:10:2490/335Beat 73%
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Amsterdam10 Oct 2024Doubles Open · Men1:15:31425/855Beat 50%