Progress against the field
Between Mechelen 2026 and Maastricht 2026, Joan Alderliesten lost 7:11 to the field.
The clock says 7:47 slower, but the races themselves got 0:36 slower 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.
Every race
7 races · 7 events
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Maastricht19 Sep 2026Individual Pro · Women1:28:2182/160Beat 49%
↑ 157 days after Rotterdam 2026 3:04 worse than the field Why ↓Close ↑
2:53 slower on the clock in a race that was 0:11 faster for everyone: 3:04 lost to the field.
The fieldCompare these two →0:11 faster This athlete2:53 slower -
Heerenveen14 May 2026Doubles Open · Women1:11:57 PB39/513Beat 92%
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Rotterdam15 Apr 2026Individual Pro · Women1:25:2867/128Beat 48%
↑ 20 days after Mechelen 2026 4:07 worse than the field Why ↓Close ↑
4:54 slower on the clock in a race that was 0:47 slower for everyone: 4:07 lost to the field.
The fieldCompare these two →0:47 slower This athlete4:54 slower -
Mechelen26 Mar 2026Individual Pro · Women1:20:34 PB86/139Beat 38%
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Amsterdam21 Jan 2026Doubles Pro · Women1:12:56 PB61/183Beat 67%
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Utrecht28 Nov 2025Individual Pro · Women1:24:3417/67Beat 75%
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Heerenveen9 May 2025Individual Open · Women1:26:40 PB66/183Beat 64%