Progress against the field
Between Rotterdam 2024 and Rotterdam 2026, Ruurd Halverhout and Manuela Lems lost 1:32 to the field.
Over the same races everyone got 7:24 quicker, so 5:52 faster on the clock looks better than it was.
412 days between Rotterdam 2025 and Rotterdam 2026 is the longest gap compared here, and the second race was 4:01 behind 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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Rotterdam15 Apr 2026Doubles Open · Mixed1:19:04380/1047Beat 64%
↑ 412 days after Rotterdam 2025, with Manuela Lems 4:01 worse than the field Why ↓Close ↑
4:01 behind the field: 1:04 slower on the clock, against 2:57 faster for everyone.
The fieldCompare these two →2:57 faster This pair1:04 slower -
Utrecht28 Nov 2025Individual Open · Men1:23:03 PB445/1337Beat 67%
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Rotterdam27 Feb 2025Doubles Open · Mixed1:18:00 PB106/353Beat 70%
↑ 327 days after Rotterdam 2024, with Manuela Lems 2:29 better than the field Why ↓Close ↑
2:29 better than the field: 6:56 faster on the clock, against 4:27 faster for everyone.
The fieldCompare these two →4:27 faster This pair6:56 faster -
Rotterdam6 Apr 2024Doubles Open · Mixed1:24:56310/534Beat 42%