Progress against the field
Between Belgium 2025 and Amsterdam 2026, Iris Dielemans lost 3:46 to the field.
The clock says 0:54 faster, but the races themselves got 4:40 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.
Every race
3 races · 3 events
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Amsterdam21 Jan 2026Individual Open · Women1:27:22 PB409/1122Beat 64%
↑ 291 days after Belgium 2025 3:46 worse than the field Faster on the clock, behind the field Why ↓Close ↑
0:54 faster on the clock looks better than it was: the race was 4:40 faster for everyone, which leaves this 3:46 behind the field.
The fieldCompare these two →4:40 faster This athlete0:54 faster -
Utrecht28 Nov 2025Individual Pro · Women1:36:40 PB64/113Beat 43%
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Belgium5 Apr 2025Individual Open · Women1:28:16269/765Beat 65%