Progress against the field
Between Rotterdam 2023 and Rotterdam 2024, Sjoerd Van Den Boom lost 5:24 to the field.
The clock says 2:21 slower, but the races themselves got 3:03 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.
Every race
5 races · 5 events
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Utrecht28 Nov 2025Doubles Pro · Men1:09:21 PB51/148Beat 66%
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Amsterdam10 Oct 2024Doubles Open · Mixed1:15:12 PB169/618Beat 73%
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Rotterdam6 Apr 2024Individual Open · Men1:32:58764/1380Beat 45%
↑ 322 days after Rotterdam 2023 5:24 worse than the field Why ↓Close ↑
5:24 behind the field: 2:21 slower on the clock, against 3:03 faster for everyone.
The fieldCompare these two →3:03 faster This athlete2:21 slower -
Amsterdam4 Nov 2023Doubles Open · Men1:07:58 PB69/411Beat 83%
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Rotterdam20 May 2023Individual Open · Men1:30:37 PB318/575Beat 45%