Progress against the field
Between Amsterdam 2022 and Maastricht 2026, Rogier Koers lost 4:10 to the field.
The clock says 5:40 faster, but the races themselves got 9:50 quicker for everyone.
532 days between Belgium 2025 and Maastricht 2026 is the longest gap compared here, and the second race was 18:55 behind the field.
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
8 races · 7 events
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Maastricht19 Sep 2026Individual Open · Men1:38:48870/1119Beat 22%
↑ 532 days after Belgium 2025 18:55 worse than the field Why ↓Close ↑
18:55 behind the field: 15:14 slower on the clock, against 3:41 faster for everyone.
The fieldCompare these two →3:41 faster This athlete15:14 slower -
Rotterdam15 Apr 2026Doubles Open · Mixed1:10:00 PB122/1047Beat 88%
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Mechelen26 Mar 2026Doubles Pro · Men1:13:16 PB392/493Beat 21%
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Amsterdam21 Jan 2026Relay · Men59:217/51Beat 86%
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Amsterdam21 Jan 2026Individual Pro · Men1:25:11 PB180/243Beat 26%
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Belgium5 Apr 2025Individual Open · Men1:23:34 PB707/1638Beat 57%
↑ 518 days after Amsterdam 2023 3:40 better than the field Why ↓Close ↑
3:40 better than the field: 7:33 faster on the clock, against 3:53 faster for everyone.
The fieldCompare these two →3:53 faster This athlete7:33 faster -
Amsterdam4 Nov 2023Individual Open · Men1:31:07587/1079Beat 46%
↑ 378 days after Amsterdam 2022 11:05 better than the field Why ↓Close ↑
11:05 better than the field: 13:21 faster on the clock, against 2:16 faster for everyone.
The fieldCompare these two →2:16 faster This athlete13:21 faster -
Amsterdam22 Oct 2022Individual Open · Men1:44:28471/561Beat 16%