Progress against the field
Between Rotterdam 2025 and Rotterdam 2026, Ilse Stolk lost 8:35 to the field.
Over the same races everyone got 4:45 quicker, so 3:50 slower on the clock looks better than it was.
274 days between Rotterdam 2025 and Utrecht 2025 is the longest gap compared here, and the second race was 8:22 behind the field.
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
-
Rotterdam15 Apr 2026Individual Open · Women1:37:43377/695Beat 46%
↑ 138 days after Utrecht 2025 0:13 worse than the field Faster on the clock, behind the field Why ↓Close ↑
2:39 faster on the clock, yet the race was 2:52 faster for everyone, so 0:13 was lost on the field.
The fieldCompare these two →2:52 faster This athlete2:39 faster -
Amsterdam21 Jan 2026Doubles Open · Women1:23:56 PB473/1030Beat 54%
-
Utrecht28 Nov 2025Individual Open · Women1:40:22370/619Beat 40%
↑ 274 days after Rotterdam 2025 8:22 worse than the field Why ↓Close ↑
8:22 behind the field: 6:29 slower on the clock, against 1:53 faster for everyone.
The fieldCompare these two →1:53 faster This athlete6:29 slower -
Rotterdam27 Feb 2025Individual Open · Women1:33:53 PB239/506Beat 53%