Progress against the field
Stef Koopman has gained 0:15 on the field from Utrecht 2025 to Mechelen 2026.
Over the same races everyone got 7:31 quicker, so 7:46 faster on the clock looks better than it was.
The largest gain on the field came from Utrecht 2025 → Amsterdam 2026: 2:08 in 54 days.
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.
Every race
7 races · 6 events
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Heerenveen14 May 2026Doubles Open · Mixed1:19:02 PB354/808Beat 56%
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Heerenveen14 May 2026Doubles Open · Men1:07:34 PB140/494Beat 72%
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Mechelen26 Mar 2026Individual Open · Men1:18:37 PB301/747Beat 60%
↑ 64 days after Amsterdam 2026 1:53 worse than the field Faster on the clock, behind the field Why ↓Close ↑
0:31 faster on the clock, yet the race was 2:24 faster for everyone, so 1:53 was lost on the field.
The fieldCompare these two →2:24 faster This athlete0:31 faster -
Amsterdam21 Jan 2026Individual Open · Men1:19:08171/570Beat 70%
↑ 54 days after Utrecht 2025 2:08 better than the field Why ↓Close ↑
2:08 better than the field: 7:15 faster on the clock, against 5:07 faster for everyone.
The fieldCompare these two →5:07 faster This athlete7:15 faster -
Gent12 Dec 2025Relay · Men1:03:0813/36Beat 64%
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Utrecht28 Nov 2025Individual Open · Men1:26:23257/575Beat 55%
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Stockholm7 Dec 2024Doubles Open · Men1:14:21125/240Beat 48%