Progress against the field
From London Excel 2025 to Birmingham 2026, Jason Parks and REBECCA GREW got 1:11 faster than the field.
Over the same races everyone got 2:13 quicker, so 3:24 faster on the clock looks better than it was.
185 days between Cardiff 2026 and Birmingham 2026 is the longest gap compared here, and the second race was 1:24 better than 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 Doubles Open · Mixed, with REBECCA GREW, the one raced most; every comparison is in the list below.
Every race
5 races · 4 events
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Birmingham31 Oct 2026Doubles Open · Mixed1:12:11 PB290/1159Beat 75%
↑ 185 days after Cardiff 2026, with REBECCA GREW 1:24 better than the field Why ↓Close ↑
3:01 faster on the clock, and the race was 1:37 faster for everyone, so 1:24 of it was this pair.
The fieldCompare these two →1:37 faster This pair3:01 faster -
Birmingham31 Oct 2026Individual Open · Men1:19:24 PB156/359Beat 57%
↑ 546 days after London 2025 7:13 better than the field Why ↓Close ↑
7:13 better than the field: 9:37 faster on the clock, against 2:24 faster for everyone.
The fieldCompare these two →2:24 faster This athlete9:37 faster -
Cardiff29 Apr 2026Doubles Open · Mixed1:15:12151/491Beat 69%
↑ 146 days after London Excel 2025, with REBECCA GREW 0:13 worse than the field Faster on the clock, behind the field Why ↓Close ↑
0:23 faster on the clock, yet the race was 0:36 faster for everyone, so 0:13 was lost on the field.
The fieldCompare these two →0:36 faster This pair0:23 faster -
London Excel4 Dec 2025Doubles Open · Mixed1:15:35502/1372Beat 63%
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London3 May 2025Individual Open · Men1:29:011311/1917Beat 32%