Progress against the field
Between Utrecht 2025 and Heerenveen 2026, Marleen Rienks and Dennis Toonstra pulled 18:22 ahead of the field.
Over the same races everyone got 5:06 quicker, so 23:28 faster on the clock looks better than it was.
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
3 races · 3 events
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Heerenveen14 May 2026Doubles Open · Mixed1:32:05 PB660/808Beat 18%
↑ 167 days after Utrecht 2025, with Dennis Toonstra 18:22 better than the field Why ↓Close ↑
23:28 faster on the clock, and the race was 5:06 faster for everyone, so 18:22 of it was this pair.
The fieldCompare these two →5:06 faster This pair23:28 faster -
Utrecht28 Nov 2025Doubles Open · Mixed1:55:33684/701Beat 2%
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Maastricht19 Sep 2025Doubles Open · Women1:37:14 PB605/739Beat 18%