Progress against the field
Between Oslo 2025 and Copenhagen 2026, Esther van Grunsven lost 9:37 to the field.
The clock says 5:39 slower, but the races themselves got 3:58 quicker for everyone.
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
7 races · 6 events
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Copenhagen13 Mar 2026Individual Open · Women1:53:35684/797Beat 14%
↑ 85 days after Stockholm 2025 4:17 worse than the field Why ↓Close ↑
3:48 slower on the clock in a race that was 0:29 faster for everyone: 4:17 lost to the field.
The fieldCompare these two →0:29 faster This athlete3:48 slower -
Stockholm18 Dec 2025Individual Open · Women1:49:47665/803Beat 17%
↑ 83 days after Oslo 2025 5:20 worse than the field Why ↓Close ↑
1:51 slower on the clock in a race that was 3:29 faster for everyone: 5:20 lost to the field.
The fieldCompare these two →3:29 faster This athlete1:51 slower -
Oslo26 Sep 2025Individual Open · Women1:47:56350/450Beat 22%
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Heerenveen9 May 2025Doubles Open · Mixed1:41:35 PB452/492Beat 8%
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Heerenveen9 May 2025Doubles Open · Women1:24:03 PB132/292Beat 55%
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Belgium5 Apr 2025Individual Open · Women1:42:04 PB545/765Beat 29%
↑ 177 days after Amsterdam 2024 11:27 better than the field Why ↓Close ↑
13:39 faster on the clock, and the race was 2:12 faster for everyone, so 11:27 of it was this athlete.
The fieldCompare these two →2:12 faster This athlete13:39 faster -
Amsterdam10 Oct 2024Individual Open · Women1:55:43594/678Beat 12%