Progress against the field
Between Amsterdam 2023 and Rotterdam 2025, Mischa Kastelein pulled 0:42 ahead of the field.
Over the same races everyone got 4:56 quicker, so 5:38 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. The summary above covers Individual Open · Men, the one raced most; every comparison is in the list below.
Every race
6 races · 6 events
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Amsterdam21 Jan 2026Doubles Open · Men1:04:03 PB149/994Beat 85%
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Rotterdam27 Feb 2025Individual Open · Men1:10:56 PB94/1283Beat 93%
↑ 481 days after Amsterdam 2023 0:42 better than the field Why ↓Close ↑
0:42 better than the field: 5:38 faster on the clock, against 4:56 faster for everyone.
The fieldCompare these two →4:56 faster This athlete5:38 faster -
Amsterdam4 Nov 2023Individual Open · Men1:16:34137/1079Beat 87%
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Rotterdam20 May 2023Relay · Men1:24:073/5Beat 40%
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Bremen19 Mar 2022Individual Open · Men1:11:5229/240Beat 88%
↑ 112 days after Hamburg 2021 8:26 better than the field Why ↓Close ↑
14:05 faster on the clock, and the race was 5:39 faster for everyone, so 8:26 of it was this athlete.
The fieldCompare these two →5:39 faster This athlete14:05 faster -
Hamburg27 Nov 2021Individual Open · Men1:25:5795/304Beat 69%