Progress against the field
Between Copenhagen 2025 and Oslo 2026, Claus Ahlstrøm Sørensen lost 4:55 to the field.
Over the same races everyone got 1:51 quicker, so 3:04 slower on the clock looks better than it was.
364 days between Copenhagen 2025 and Copenhagen 2026 is the longest gap compared here, and the second race was 5:30 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
4 races · 4 events
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Hamburg28 Oct 2026Individual Open · MenDNF—
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Oslo26 Sep 2026Individual Open · Men1:21:00335/871Beat 62%
↑ 197 days after Copenhagen 2026 0:35 better than the field Why ↓Close ↑
0:35 better than the field: 2:33 faster on the clock, against 1:58 faster for everyone.
The fieldCompare these two →1:58 faster This athlete2:33 faster -
Copenhagen13 Mar 2026Individual Open · Men1:23:33406/900Beat 55%
↑ 364 days after Copenhagen 2025 5:30 worse than the field Why ↓Close ↑
5:30 behind the field: 5:37 slower on the clock, against 0:07 slower for everyone.
The fieldCompare these two →0:07 slower This athlete5:37 slower -
Copenhagen14 Mar 2025Individual Open · Men1:17:56 PB479/1323Beat 64%