Progress against the field
Between London 2025 and Cardiff 2026, Charlie Costard lost 6:32 to the field.
Over the same races everyone got 4:05 quicker, so 2:27 slower on the clock looks better than it was.
The longest gap between two races compared here, 189 days between Birmingham 2025 and Cardiff 2026, cost 5:11 on 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
8 races · 5 events
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Cardiff29 Apr 2026Doubles Open · Men1:12:29245/566Beat 57%
↑ 146 days after London Excel 2025, with Bradley Hoy 0:48 better than the field Why ↓Close ↑
0:48 better than the field: 1:06 faster on the clock, against 0:18 faster for everyone.
The fieldCompare these two →0:18 faster This pair1:06 faster -
Cardiff29 Apr 2026Individual Open · Men1:17:41176/528Beat 67%
↑ 189 days after Birmingham 2025 5:11 worse than the field Why ↓Close ↑
5:11 behind the field: 1:11 slower on the clock, against 4:00 faster for everyone.
The fieldCompare these two →4:00 faster This athlete1:11 slower -
London Olympia24 Mar 2026Doubles Open · Men1:04:28 PB176/813Beat 78%
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London Olympia24 Mar 2026Doubles Open · Mixed1:10:41 PB85/414Beat 80%
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London Excel4 Dec 2025Doubles Open · Men1:13:351057/1815Beat 42%
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London Excel4 Dec 2025Individual Pro · Men1:20:37 PB315/467Beat 33%
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Birmingham22 Oct 2025Individual Open · Men1:16:30147/523Beat 72%
↑ 172 days after London 2025 1:21 worse than the field Why ↓Close ↑
1:16 slower on the clock in a race that was 0:05 faster for everyone: 1:21 lost to the field.
The fieldCompare these two →0:05 faster This athlete1:16 slower -
London3 May 2025Individual Open · Men1:15:14 PB566/1917Beat 71%