Progress against the field
From Rotterdam 2025 to Utrecht 2025, Isabelle Vogelaar has moved with the field: what changed on the clock changed for everyone.
Over the same races everyone got 1:53 quicker, so 1:43 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
2 races · 2 events
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Utrecht28 Nov 2025Individual Open · Women1:52:19 PB503/619Beat 19%
↑ 274 days after Rotterdam 2025 0:10 worse than the field Faster on the clock, behind the field Why ↓Close ↑
1:43 faster on the clock, yet the race was 1:53 faster for everyone, so 0:10 was lost on the field.
The fieldCompare these two →1:53 faster This athlete1:43 faster -
Rotterdam27 Feb 2025Individual Open · Women1:54:02358/411Beat 13%