Progress against the field
Between Rotterdam 2025 and Utrecht 2025, Jo-an van Gemerden lost 2:00 to the field.
Over the same races everyone got 1:53 quicker, so 0:07 slower 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
6 races · 6 events
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Rotterdam15 Apr 2026Relay · Women1:07:119/84Beat 89%
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Amsterdam21 Jan 2026Doubles Open · Women1:22:04 PB116/297Beat 61%
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Utrecht28 Nov 2025Individual Open · Women1:35:20300/619Beat 52%
↑ 274 days after Rotterdam 2025 2:00 worse than the field Why ↓Close ↑
2:00 behind the field: 0:07 slower on the clock, against 1:53 faster for everyone.
The fieldCompare these two →1:53 faster This athlete0:07 slower -
Heerenveen9 May 2025Doubles Open · Mixed1:15:33 PB116/492Beat 76%
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Barcelona25 Apr 2025Doubles Open · Women1:57:30568/578Beat 2%
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Rotterdam27 Feb 2025Individual Open · Women1:35:13 PB231/411Beat 44%