Progress against the field
Kieran O'Brien has dropped 2:11 behind the field from London 2023 to Cardiff 2025.
The clock says 2:09 faster, but the races themselves got 4:20 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
10 races · 9 events
-
Oslo26 Sep 2026Individual Pro · Men1:06:1544/273Beat 84%
-
Cardiff29 Apr 2026Individual Pro · Men1:11:14136/533Beat 75%
-
EMEA London Olympia24 Mar 2026Doubles Open · Mixed1:32:58 PB326/359Beat 9%
-
Copenhagen13 Mar 2026Individual Pro · Men1:05:25 PB39/365Beat 89%
-
Birmingham22 Oct 2025Individual Pro · Men1:08:0437/137Beat 73%
↑ 145 days after Cardiff 2025 3:42 better than the field Why ↓Close ↑
4:35 faster on the clock, and the race was 0:53 faster for everyone, so 3:42 of it was this athlete.
The fieldCompare these two →0:53 faster This athlete4:35 faster -
Cardiff30 May 2025Individual Pro · Men1:12:3985/225Beat 62%
-
Cardiff30 May 2025Individual Open · Men1:08:3246/639Beat 93%
↑ 202 days after Paris 2024 2:17 worse than the field Why ↓Close ↑
1:37 slower on the clock in a race that was 0:40 faster for everyone: 2:17 lost to the field.
The fieldCompare these two →0:40 faster This athlete1:37 slower -
Paris9 Nov 2024Individual Open · Men1:06:55 PB75/1585Beat 95%
↑ 15 days after Birmingham 2024 0:58 better than the field Why ↓Close ↑
0:58 better than the field: 3:45 faster on the clock, against 2:47 faster for everyone.
The fieldCompare these two →2:47 faster This athlete3:45 faster -
Birmingham25 Oct 2024Individual Open · Men1:10:40200/1916Beat 90%
↑ 334 days after London 2023 0:52 worse than the field Faster on the clock, behind the field Why ↓Close ↑
0:01 faster on the clock looks better than it was: the race was 0:53 faster for everyone, which leaves this 0:52 behind the field.
The fieldCompare these two →0:53 faster This athlete0:01 faster -
London26 Nov 2023Individual Open · Men1:10:41168/1865Beat 91%