Progress against the field
Between Amsterdam 2024 and London Excel 2025, Cian O'Brien kept pace with the field.
The clock says 6:40 faster, but the races themselves got 6:30 quicker for everyone.
The biggest step was Dublin 2024 → Malaga 2025: 11:19 on the field in 126 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
9 races · 8 events
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Valencia17 Oct 2026Doubles Open · Men1:06:25 PB58/295Beat 80%
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Malaga16 Apr 2026Doubles Open · Men1:06:5092/494Beat 81%
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Manchester21 Jan 2026Doubles Open · Mixed1:26:29 PB595/824Beat 28%
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London Excel4 Dec 2025Individual Open · Men1:04:59 PB156/2779Beat 94%
↑ 22 days after Dublin 2025 1:19 better than the field Why ↓Close ↑
1:19 better than the field: 1:48 faster on the clock, against 0:29 faster for everyone.
The fieldCompare these two →0:29 faster This athlete1:48 faster -
Dublin12 Nov 2025Individual Open · Men1:06:4786/955Beat 91%
↑ 236 days after Malaga 2025 0:00 better than the field Why ↓Close ↑
Moved with the field: 2:03 faster on the clock, against 2:03 faster for everyone.
The fieldCompare these two →2:03 faster This athlete2:03 faster -
Malaga21 Mar 2025Individual Open · Men1:08:50150/966Beat 85%
↑ 126 days after Dublin 2024 11:19 better than the field Why ↓Close ↑
11:19 better than the field: 14:25 faster on the clock, against 3:06 faster for everyone.
The fieldCompare these two →3:06 faster This athlete14:25 faster -
Dublin15 Nov 2024Individual Open · Men1:23:15607/1221Beat 50%
↑ 36 days after Amsterdam 2024 12:28 worse than the field Why ↓Close ↑
12:28 behind the field: 11:36 slower on the clock, against 0:52 faster for everyone.
The fieldCompare these two →0:52 faster This athlete11:36 slower -
Dublin15 Nov 2024Doubles Open · Men1:14:31167/290Beat 42%
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Amsterdam10 Oct 2024Individual Open · Men1:11:39182/1539Beat 88%