Progress against the field
Between Maastricht 2025 and Rotterdam 2026, Claudia De Boer lost 2:35 to the field.
Over the same races everyone got 5:42 quicker, so 3:07 faster on the clock looks better than it was.
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
4 races · 4 events
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Maastricht19 Sep 2026Individual Pro · Women1:47:50 PB140/160Beat 13%
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Rotterdam15 Apr 2026Individual Open · Women1:31:23163/462Beat 65%
↑ 20 days after Mechelen 2026 2:12 worse than the field Why ↓Close ↑
2:20 slower on the clock in a race that was 0:08 slower for everyone: 2:12 lost to the field.
The fieldCompare these two →0:08 slower This athlete2:20 slower -
Mechelen26 Mar 2026Individual Open · Women1:29:03 PB78/169Beat 54%
↑ 188 days after Maastricht 2025 0:23 worse than the field Faster on the clock, behind the field Why ↓Close ↑
5:27 faster on the clock, yet the race was 5:50 faster for everyone, so 0:23 was lost on the field.
The fieldCompare these two →5:50 faster This athlete5:27 faster -
Maastricht19 Sep 2025Individual Open · Women1:34:30294/590Beat 50%