Progress against the field
From Rotterdam 2025 to Heerenveen 2026, Melissa Pereboom got 8:17 faster than the field.
Over the same races everyone got 5:36 quicker, so 13:53 faster on the clock looks better than it was.
274 days between Rotterdam 2025 and Utrecht 2025 is the longest gap compared here, and the second race was 3:22 better than 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. The summary above covers Individual Open · Women, the one raced most; every comparison is in the list below.
Every race
5 races · 5 events
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Heerenveen14 May 2026Individual Open · Women1:19:24 PB59/608Beat 90%
↑ 167 days after Utrecht 2025 4:55 better than the field Why ↓Close ↑
8:38 faster on the clock, and the race was 3:43 faster for everyone, so 4:55 of it was this athlete.
The fieldCompare these two →3:43 faster This athlete8:38 faster -
Mechelen26 Mar 2026Doubles Open · Mixed1:07:22 PB116/962Beat 88%
↑ 188 days after Maastricht 2025, with Leon Van Zoeren 1:26 worse than the field Faster on the clock, behind the field Why ↓Close ↑
5:15 faster on the clock, yet the race was 6:41 faster for everyone, so 1:26 was lost on the field.
The fieldCompare these two →6:41 faster This pair5:15 faster -
Utrecht28 Nov 2025Individual Open · Women1:28:02180/619Beat 71%
↑ 274 days after Rotterdam 2025 3:22 better than the field Why ↓Close ↑
3:22 better than the field: 5:15 faster on the clock, against 1:53 faster for everyone.
The fieldCompare these two →1:53 faster This athlete5:15 faster -
Maastricht19 Sep 2025Doubles Open · Mixed1:12:3781/658Beat 88%
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Rotterdam27 Feb 2025Individual Open · Women1:33:1790/203Beat 56%