Progress against the field
Bo Laure Van de Groep has dropped 0:30 behind the field from Amsterdam 2026 to Maastricht 2026.
The clock says 0:54 faster, but the races themselves got 1:24 quicker for everyone.
The largest gain on the field came from Amsterdam 2026 → Rotterdam 2026: 9:41 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
3 races · 3 events
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Maastricht19 Sep 2026Individual Open · Women1:36:30307/577Beat 47%
↑ 157 days after Rotterdam 2026 10:11 worse than the field Why ↓Close ↑
9:01 slower on the clock in a race that was 1:10 faster for everyone: 10:11 lost to the field.
The fieldCompare these two →1:10 faster This athlete9:01 slower -
Rotterdam15 Apr 2026Individual Open · Women1:27:29 PB201/695Beat 71%
↑ 84 days after Amsterdam 2026 9:41 better than the field Why ↓Close ↑
9:41 better than the field: 9:55 faster on the clock, against 0:14 faster for everyone.
The fieldCompare these two →0:14 faster This athlete9:55 faster -
Amsterdam21 Jan 2026Individual Open · Women1:37:24736/1122Beat 34%