Progress against the field
Between Birmingham 2024 and Birmingham 2025, Janek Detko lost 9:27 to the field.
The clock says 0:45 faster, but the races themselves got 10:12 quicker for everyone.
The biggest step was Manchester 2025 → Glasgow 2025: 8:15 on the field in 47 days.
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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Birmingham22 Oct 2025Individual Open · Men1:42:441519/1821Beat 17%
↑ 145 days after Cardiff 2025 6:18 worse than the field Why ↓Close ↑
6:18 behind the field: 3:42 slower on the clock, against 2:36 faster for everyone.
The fieldCompare these two →2:36 faster This athlete3:42 slower -
Cardiff30 May 2025Individual Open · Men1:39:021202/1401Beat 14%
↑ 79 days after Glasgow 2025 4:53 worse than the field Why ↓Close ↑
4:53 behind the field: 4:23 slower on the clock, against 0:30 faster for everyone.
The fieldCompare these two →0:30 faster This athlete4:23 slower -
Glasgow12 Mar 2025Individual Open · Men1:34:39 PB1158/1445Beat 20%
↑ 47 days after Manchester 2025 8:15 better than the field Why ↓Close ↑
11:29 faster on the clock, and the race was 3:14 faster for everyone, so 8:15 of it was this athlete.
The fieldCompare these two →3:14 faster This athlete11:29 faster -
Manchester24 Jan 2025Individual Open · Men1:46:081076/1191Beat 10%
↑ 91 days after Birmingham 2024 6:31 worse than the field Why ↓Close ↑
6:31 behind the field: 2:39 slower on the clock, against 3:52 faster for everyone.
The fieldCompare these two →3:52 faster This athlete2:39 slower -
Birmingham25 Oct 2024Individual Open · Men1:43:291611/1916Beat 16%