Progress against the field
Lotte Alzer and Mirte Keulen have gained 7:38 on the field from Maastricht 2025 to Rotterdam 2026.
Over the same races everyone got 5:47 quicker, so 13:25 faster on the clock looks better than it was.
The largest gain on the field came from Gent 2025 → Rotterdam 2026: 6:07 in 124 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
4 races · 4 events
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Maastricht19 Sep 2026Doubles Open · Women1:28:55319/708Beat 55%
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Rotterdam15 Apr 2026Doubles Open · Women1:20:37 PB124/466Beat 73%
↑ 124 days after Gent 2025, with Mirte Keulen 6:07 better than the field Why ↓Close ↑
9:14 faster on the clock, and the race was 3:07 faster for everyone, so 6:07 of it was this pair.
The fieldCompare these two →3:07 faster This pair9:14 faster -
Gent12 Dec 2025Doubles Open · Women1:29:51540/882Beat 39%
↑ 84 days after Maastricht 2025, with Mirte Keulen 1:31 better than the field Why ↓Close ↑
1:31 better than the field: 4:11 faster on the clock, against 2:40 faster for everyone.
The fieldCompare these two →2:40 faster This pair4:11 faster -
Maastricht19 Sep 2025Doubles Open · Women1:34:02210/329Beat 36%