Progress against the field
Between Copenhagen 2024 and Stockholm 2025, James Roberts pulled 13:56 ahead of the field.
Over the same races everyone got 5:45 quicker, so 19:41 faster on the clock looks better than it was.
362 days between Birmingham 2024 and Birmingham 2025 is the longest gap compared here, and the second race was 7:33 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. The summary above covers Individual Open · Men, the one raced most; every comparison is in the list below.
Every race
13 races · 12 events
-
Birmingham31 Oct 2026Doubles Open · Men1:18:40755/1035Beat 27%
-
Stockholm18 Dec 2025Individual Open · Men1:19:13 PB475/1315Beat 64%
↑ 57 days after Birmingham 2025 0:36 better than the field Why ↓Close ↑
3:37 faster on the clock, and the race was 3:01 faster for everyone, so 0:36 of it was this athlete.
The fieldCompare these two →3:01 faster This athlete3:37 faster -
London Excel4 Dec 2025Doubles Open · Men1:14:261115/1815Beat 39%
-
Birmingham22 Oct 2025Individual Open · Men1:22:50826/1821Beat 55%
↑ 362 days after Birmingham 2024 7:33 worse than the field Why ↓Close ↑
7:33 behind the field: 2:54 slower on the clock, against 4:39 faster for everyone.
The fieldCompare these two →4:39 faster This athlete2:54 slower -
Birmingham22 Oct 2025Doubles Pro · Men1:12:58 PB138/176Beat 22%
-
Barcelona25 Apr 2025Doubles Open · Men1:03:52 PB126/781Beat 84%
-
Glasgow12 Mar 2025Doubles Open · Mixed1:12:58 PB210/841Beat 75%
-
Manchester24 Jan 2025Individual Pro · Men1:36:28165/196Beat 16%
↑ 56 days after London 2024 6:59 worse than the field Why ↓Close ↑
6:59 behind the field: 7:43 slower on the clock, against 0:44 slower for everyone.
The fieldCompare these two →0:44 slower This athlete7:43 slower -
London29 Nov 2024Individual Pro · Men1:28:45 PB132/182Beat 28%
-
Dublin15 Nov 2024Doubles Open · Men1:08:35265/638Beat 59%
-
Birmingham25 Oct 2024Individual Open · Men1:19:56637/1916Beat 67%
↑ 216 days after Copenhagen 2024 20:53 better than the field Why ↓Close ↑
The race was 1:55 slower for everyone and the clock still says 18:58 faster: 20:53 gained on the field.
The fieldCompare these two →1:55 slower This athlete18:58 faster -
Copenhagen23 Mar 2024Individual Open · Men1:38:54595/686Beat 13%
-
NiceDate unknownIndividual Open · Men1:19:41687/1562Beat 56%