Progress against the field
James Jerram has gained 2:02 on the field from Cardiff 2025 to London Excel 2025.
Over the same races everyone got 4:02 quicker, so 6:04 faster on the clock looks better than it was.
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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London Excel4 Dec 2025Individual Open · Men1:18:30 PB1067/2779Beat 62%
↑ 188 days after Cardiff 2025 2:02 better than the field Why ↓Close ↑
2:02 better than the field: 6:04 faster on the clock, against 4:02 faster for everyone.
The fieldCompare these two →4:02 faster This athlete6:04 faster -
Birmingham22 Oct 2025Doubles Open · Mixed1:14:50267/889Beat 70%
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Cardiff30 May 2025Individual Open · Men1:24:34808/1401Beat 42%
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London3 May 2025Doubles Open · Men1:02:58 PB172/1010Beat 83%
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Copenhagen14 Mar 2025Doubles Open · Mixed1:13:17 PB287/742Beat 61%