Progress against the field
Kim Los and Aart Los have dropped 4:45 behind the field from Rotterdam 2025 to Rotterdam 2026.
The clock says 1:48 slower, but the races themselves got 2:57 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 Doubles Open · Mixed, with Aart Los, the one raced most; every comparison is in the list below.
Every race
7 races · 5 events
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Barcelona14 May 2026Doubles Pro · Women1:07:36 PB19/200Beat 91%
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Rotterdam15 Apr 2026Doubles Open · Women1:23:01364/936Beat 61%
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Rotterdam15 Apr 2026Doubles Open · Mixed1:22:15496/1047Beat 53%
↑ 412 days after Rotterdam 2025, with Aart Los 4:45 worse than the field Why ↓Close ↑
4:45 behind the field: 1:48 slower on the clock, against 2:57 faster for everyone.
The fieldCompare these two →2:57 faster This pair1:48 slower -
Amsterdam21 Jan 2026Doubles Open · Women1:08:33 PB28/1030Beat 97%
↑ 328 days after Rotterdam 2025, with Sarah Tuohy 0:08 worse than the field Why ↓Close ↑
Moved with the field: 4:56 faster on the clock, against 5:04 faster for everyone.
The fieldCompare these two →5:04 faster This pair4:56 faster -
Utrecht28 Nov 2025Doubles Pro · Women1:10:2215/102Beat 85%
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Rotterdam27 Feb 2025Doubles Open · Mixed1:20:27 PB290/707Beat 59%
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Rotterdam27 Feb 2025Doubles Open · Women1:13:2935/633Beat 95%