Progress against the field
Steven Korf has dropped 9:15 behind the field from Utrecht 2025 to Rotterdam 2026.
The clock says 3:56 slower, but the races themselves got 5:19 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 · Men, the one raced most; every comparison is in the list below.
Every race
5 races · 5 events
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Heerenveen14 May 2026Doubles Open · Men1:09:25 PB136/434Beat 69%
↑ 113 days after Amsterdam 2026, with Jan de Boer 0:47 better than the field Why ↓Close ↑
0:47 better than the field: 2:14 faster on the clock, against 1:27 faster for everyone.
The fieldCompare these two →1:27 faster This pair2:14 faster -
Rotterdam15 Apr 2026Individual Open · Men1:30:47338/556Beat 39%
↑ 138 days after Utrecht 2025 9:15 worse than the field Why ↓Close ↑
3:56 slower on the clock in a race that was 5:19 faster for everyone: 9:15 lost to the field.
The fieldCompare these two →5:19 faster This athlete3:56 slower -
Amsterdam21 Jan 2026Doubles Open · Men1:11:399/51Beat 82%
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Utrecht28 Nov 2025Individual Open · Men1:26:51 PB263/575Beat 54%
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Heerenveen9 May 2025Doubles Open · Men1:14:06144/309Beat 53%