Progress against the field
Between Maastricht 2025 and Heerenveen 2026, Demi van Lienden and Tammy Knopjes lost 3:17 to the field.
Over the same races everyone got 3:48 quicker, so 0:31 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
4 races · 4 events
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Heerenveen14 May 2026Doubles Open · Women1:15:34 PB88/513Beat 83%
↑ 237 days after Maastricht 2025, with Tammy Knopjes 3:17 worse than the field Faster on the clock, behind the field Why ↓Close ↑
0:31 faster on the clock looks better than it was: the race was 3:48 faster for everyone, which leaves this 3:17 behind the field.
The fieldCompare these two →3:48 faster This pair0:31 faster -
Rotterdam15 Apr 2026Doubles Open · Women1:19:54259/936Beat 72%
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Maastricht19 Sep 2025Doubles Open · Women1:16:0542/329Beat 87%
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Heerenveen9 May 2025Individual Open · Women1:25:56 PB130/571Beat 77%