Progress against the field
From Amsterdam 2026 to Rotterdam 2026, the field gained 3:30 on Casper Zwier.
Over the same races everyone got 2:08 quicker, so 1:22 slower on the clock looks better than it was.
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
3 races · 3 events
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Rotterdam15 Apr 2026Individual Open · Men1:20:04379/1192Beat 68%
↑ 84 days after Amsterdam 2026 3:30 worse than the field Why ↓Close ↑
3:30 behind the field: 1:22 slower on the clock, against 2:08 faster for everyone.
The fieldCompare these two →2:08 faster This athlete1:22 slower -
Amsterdam21 Jan 2026Individual Open · Men1:18:42 PB210/608Beat 66%
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Gent12 Dec 2025Doubles Open · Men1:28:16 PB249/280Beat 11%