Progress against the field
Between London 2023 and Birmingham 2025, Mark Hassell lost 7:13 to the field.
Over the same races everyone got 7:47 quicker, so 0:34 faster on the clock looks better than it was.
The longest gap between two races compared here, 369 days between London 2023 and London 2024, cost 2:29 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.
Every race
9 races · 7 events
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London Excel4 Dec 2025Relay · Mixed57:4310/126Beat 92%
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London Excel4 Dec 2025Individual Pro · Men1:07:30 PB118/467Beat 75%
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Birmingham22 Oct 2025Individual Open · Men1:08:21 PB138/1600Beat 91%
↑ 172 days after London 2025 7:11 better than the field Why ↓Close ↑
7:16 faster on the clock, and the race was 0:05 faster for everyone, so 7:11 of it was this athlete.
The fieldCompare these two →0:05 faster This athlete7:16 faster -
Valencia17 Oct 2025Doubles Open · Mixed1:17:11 PB205/555Beat 63%
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Riga31 May 2025Doubles Open · Men58:12 PB5/252Beat 98%
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London3 May 2025Individual Open · Men1:15:37597/1917Beat 69%
↑ 155 days after London 2024 11:55 worse than the field Why ↓Close ↑
6:26 slower on the clock in a race that was 5:29 faster for everyone: 11:55 lost to the field.
The fieldCompare these two →5:29 faster This athlete6:26 slower -
London29 Nov 2024Doubles Open · Mixed1:21:33441/795Beat 45%
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London29 Nov 2024Individual Open · Men1:09:1170/688Beat 90%
↑ 369 days after London 2023 2:29 worse than the field Why ↓Close ↑
0:16 slower on the clock in a race that was 2:13 faster for everyone: 2:29 lost to the field.
The fieldCompare these two →2:13 faster This athlete0:16 slower -
London26 Nov 2023Individual Open · Men1:08:55107/1865Beat 94%