Progress against the field
Between Amsterdam 2023 and Amsterdam 2024, Sander De Haan and Mareen Tiedink pulled 26:42 ahead of the field.
The clock says 31:18 faster, but the races themselves got 4:36 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.
Every race
4 races · 3 events
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Amsterdam21 Jan 2026Doubles Open · Mixed1:20:44656/1206Beat 46%
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Amsterdam21 Jan 2026Individual Open · Men1:29:32 PB1089/1620Beat 33%
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Amsterdam10 Oct 2024Doubles Open · Mixed1:16:52 PB211/618Beat 66%
↑ 341 days after Amsterdam 2023, with Mareen Tiedink 26:42 better than the field Why ↓Close ↑
31:18 faster on the clock, and the race was 4:36 faster for everyone, so 26:42 of it was this pair.
The fieldCompare these two →4:36 faster This pair31:18 faster -
Amsterdam4 Nov 2023Doubles Open · Mixed1:48:10264/283Beat 7%