Progress against the field
Sam Mercer has gained 3:33 on the field from Manchester 2025 to Cardiff 2025.
The clock says 5:32 faster, but the races themselves got 1:59 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
5 races · 5 events
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Cardiff29 Apr 2026Doubles Open · Men1:06:02 PB132/478Beat 72%
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London Olympia24 Mar 2026Doubles Open · Men1:10:13142/396Beat 64%
↑ 325 days after London 2025, with Tom Church 4:33 worse than the field Why ↓Close ↑
4:33 behind the field: 2:38 slower on the clock, against 1:55 faster for everyone.
The fieldCompare these two →1:55 faster This pair2:38 slower -
Cardiff30 May 2025Individual Open · Men1:18:05 PB233/639Beat 64%
↑ 126 days after Manchester 2025 3:33 better than the field Why ↓Close ↑
5:32 faster on the clock, and the race was 1:59 faster for everyone, so 3:33 of it was this athlete.
The fieldCompare these two →1:59 faster This athlete5:32 faster -
London3 May 2025Doubles Open · Men1:07:35376/1010Beat 63%
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Manchester24 Jan 2025Individual Open · Men1:23:37631/1191Beat 47%