Progress against the field
From Rotterdam 2025 to Heerenveen 2026, the field gained 5:13 on Lisanne De groot.
The clock says 5:19 faster, but the races themselves got 10:32 quicker for everyone.
The largest gain on the field came from Maastricht 2025 → Gent 2025: 5:11 in 84 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.
Every race
5 races · 5 events
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Heerenveen14 May 2026Individual Open · Women1:18:2449/427Beat 89%
↑ 29 days after Rotterdam 2026 1:52 better than the field Why ↓Close ↑
5:11 faster on the clock, and the race was 3:19 faster for everyone, so 1:52 of it was this athlete.
The fieldCompare these two →3:19 faster This athlete5:11 faster -
Rotterdam15 Apr 2026Individual Open · Women1:23:3561/485Beat 87%
↑ 124 days after Gent 2025 11:37 worse than the field Why ↓Close ↑
9:33 slower on the clock in a race that was 2:04 faster for everyone: 11:37 lost to the field.
The fieldCompare these two →2:04 faster This athlete9:33 slower -
Gent12 Dec 2025Individual Open · Women1:14:02 PB46/1009Beat 95%
↑ 84 days after Maastricht 2025 5:11 better than the field Why ↓Close ↑
5:11 better than the field: 9:26 faster on the clock, against 4:15 faster for everyone.
The fieldCompare these two →4:15 faster This athlete9:26 faster -
Maastricht19 Sep 2025Individual Open · Women1:23:2851/348Beat 85%
↑ 204 days after Rotterdam 2025 0:39 worse than the field Faster on the clock, behind the field Why ↓Close ↑
0:15 faster on the clock, yet the race was 0:54 faster for everyone, so 0:39 was lost on the field.
The fieldCompare these two →0:54 faster This athlete0:15 faster -
Rotterdam27 Feb 2025Individual Open · Women1:23:4338/203Beat 81%