Progress against the field
Fenna Castricum has gained 1:01 on the field from Utrecht 2025 to Rotterdam 2026.
The clock says 3:53 faster, but the races themselves got 2:52 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. The summary above covers Individual Open · Women, the one raced most; every comparison is in the list below.
Every race
6 races · 5 events
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Rotterdam15 Apr 2026Individual Open · Women1:17:15 PB54/695Beat 92%
↑ 138 days after Utrecht 2025 1:01 better than the field Why ↓Close ↑
1:01 better than the field: 3:53 faster on the clock, against 2:52 faster for everyone.
The fieldCompare these two →2:52 faster This athlete3:53 faster -
Amsterdam21 Jan 2026Relay · Mixed1:01:118/68Beat 88%
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Amsterdam21 Jan 2026Doubles Open · Mixed1:10:23 PB235/1206Beat 81%
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Utrecht28 Nov 2025Individual Open · Women1:21:0828/254Beat 89%
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Maastricht19 Sep 2025Doubles Open · Women1:21:2578/329Beat 76%
↑ 204 days after Rotterdam 2025, with Vivienne Kunst 2:34 worse than the field Why ↓Close ↑
2:34 behind the field: 0:28 slower on the clock, against 2:06 faster for everyone.
The fieldCompare these two →2:06 faster This pair0:28 slower -
Rotterdam27 Feb 2025Doubles Open · Women1:20:57 PB162/633Beat 74%