Progress against the field
Between Utrecht 2025 and Rotterdam 2026, Mendolyn van Ommen and Marcel van Lieshout lost 3:52 to the field.
The clock says 0:24 faster, but the races themselves got 4:16 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. The summary above covers Doubles Open · Mixed, with Marcel van Lieshout, the one raced most; every comparison is in the list below.
Every race
5 races · 5 events
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Rotterdam15 Apr 2026Doubles Open · Mixed1:11:37 PB71/560Beat 87%
↑ 138 days after Utrecht 2025, with Marcel van Lieshout 3:52 worse than the field Faster on the clock, behind the field Why ↓Close ↑
0:24 faster on the clock, yet the race was 4:16 faster for everyone, so 3:52 was lost on the field.
The fieldCompare these two →4:16 faster This pair0:24 faster -
Utrecht28 Nov 2025Doubles Open · Mixed1:12:0188/701Beat 87%
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Heerenveen9 May 2025Individual Open · Women1:21:55 PB36/183Beat 80%
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Rotterdam27 Feb 2025Doubles Open · Women1:18:57 PB54/243Beat 78%
↑ 140 days after Amsterdam 2024, with Ruth Vis 2:46 better than the field Why ↓Close ↑
6:24 faster on the clock, and the race was 3:38 faster for everyone, so 2:46 of it was this pair.
The fieldCompare these two →3:38 faster This pair6:24 faster -
Amsterdam10 Oct 2024Doubles Open · Women1:25:21281/657Beat 57%