Progress against the field
Between Amsterdam 2024 and Heerenveen 2025, Koos Haan and Sander Glas lost 2:29 to the field.
Over the same races everyone got 3:37 quicker, so 1:08 faster 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
2 races · 2 events
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Heerenveen9 May 2025Doubles Open · Men1:20:58 PB410/529Beat 23%
↑ 211 days after Amsterdam 2024, with Sander Glas 2:29 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:08 faster on the clock, yet the race was 3:37 faster for everyone, so 2:29 was lost on the field.
The fieldCompare these two →3:37 faster This pair1:08 faster -
Amsterdam10 Oct 2024Doubles Open · Men1:22:06635/855Beat 26%