Progress against the field
Between Maastricht 2025 and Amsterdam 2026, Denise Pieters and Robin Groot lost 2:23 to the field.
The clock says 3:42 faster, but the races themselves got 6:05 quicker for everyone.
The biggest step was Maastricht 2025 → Utrecht 2025: 2:14 on the field in 70 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. The summary above covers Doubles Open · Women, with Robin Groot, the one raced most; every comparison is in the list below.
Every race
6 races · 6 events
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Heerenveen14 May 2026Individual Open · Women1:20:31 PB67/427Beat 84%
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Rotterdam15 Apr 2026Doubles Open · Women1:16:22150/936Beat 84%
↑ 341 days after Heerenveen 2025, with Isabel Hink 2:49 better than the field Why ↓Close ↑
5:43 faster on the clock, and the race was 2:54 faster for everyone, so 2:49 of it was this pair.
The fieldCompare these two →2:54 faster This pair5:43 faster -
Amsterdam21 Jan 2026Doubles Open · Women1:11:0165/1030Beat 94%
↑ 54 days after Utrecht 2025, with Robin Groot 4:37 worse than the field Why ↓Close ↑
0:05 slower on the clock in a race that was 4:32 faster for everyone: 4:37 lost to the field.
The fieldCompare these two →4:32 faster This pair0:05 slower -
Utrecht28 Nov 2025Doubles Open · Women1:10:56 PB23/828Beat 97%
↑ 70 days after Maastricht 2025, with Robin Groot 2:14 better than the field Why ↓Close ↑
2:14 better than the field: 3:47 faster on the clock, against 1:33 faster for everyone.
The fieldCompare these two →1:33 faster This pair3:47 faster -
Maastricht19 Sep 2025Doubles Open · Women1:14:4334/329Beat 90%
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Heerenveen9 May 2025Doubles Open · Women1:22:05143/566Beat 75%