Progress against the field
Between Maastricht 2024 and Amsterdam 2026, Jona Zuiver and Carlijn De Graef lost 3:52 to the field.
The clock says 2:40 faster, but the races themselves got 6:32 quicker for everyone.
655 days between Rotterdam 2024 and Amsterdam 2026 is the longest gap compared here, and the second race was 2:58 better than 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.
Every race
4 races · 4 events
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Miami3 Apr 2026Doubles Open · Mixed1:11:50 PB212/1477Beat 86%
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Amsterdam21 Jan 2026Doubles Open · Mixed1:14:10389/1206Beat 68%
↑ 655 days after Rotterdam 2024, with Carlijn De Graef 2:58 better than the field Why ↓Close ↑
7:26 faster on the clock, and the race was 4:28 faster for everyone, so 2:58 of it was this pair.
The fieldCompare these two →4:28 faster This pair7:26 faster -
Rotterdam6 Apr 2024Doubles Open · Mixed1:21:36241/534Beat 55%
↑ 77 days after Maastricht 2024, with Carlijn De Graef 6:50 worse than the field Why ↓Close ↑
6:50 behind the field: 4:46 slower on the clock, against 2:04 faster for everyone.
The fieldCompare these two →2:04 faster This pair4:46 slower -
Maastricht20 Jan 2024Doubles Open · Mixed1:16:5069/230Beat 70%