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Athlete United Kingdom

Isobel Clarke

Since 2024, Isobel Clarke has raced HYROX 5 times across 2 categories, the mixed Doubles Open most often (3). The fastest of 3 in the mixed Doubles Open is 1:26:35 at Glasgow 2026, 735th of 1,198 mixed teams. On the clock, that is 3:09 faster than the first of them, at London 2025, both times with George Walter.

Best finish, by category
Doubles Open · Mixed
1:26:35
Glasgow 2026
Doubles Open · Women
1:22:08
Birmingham 2024

Progress against the field

From London 2025 to Glasgow 2026, Isobel Clarke and George Walter got 1:51 faster than the field.

Over the same races everyone got 1:18 quicker, so 3:09 faster on the clock looks better than it was.

Time ahead of the field Up is better
London 2025 Glasgow 2026

The biggest step was London Excel 2025 → Glasgow 2026: 2:49 on the field in 97 days.

Race by race, in the list below ↓
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

  1. Glasgow
    11 Mar 2026
    Doubles Open · Mixed
    1:26:35 PB
    735/1198
    Beat 39%
    ↑ 97 days after London Excel 2025, with George Walter 2:49 better than the field Why ↓

    2:29 faster on the clock in a race that was 0:20 slower for everyone: 2:49 better than the field.

    Compare these two →
  2. London Excel
    4 Dec 2025
    Doubles Open · Mixed
    1:29:04
    1132/1474
    Beat 23%
    ↑ 215 days after London 2025, with George Walter 0:58 worse than the field Faster on the clock, behind the field Why ↓

    0:40 faster on the clock looks better than it was: the race was 1:38 faster for everyone, which leaves this 0:58 behind the field.

    Compare these two →
  3. London
    3 May 2025
    Doubles Open · Mixed
    1:29:44
    813/956
    Beat 15%
  4. Manchester
    9 Nov 2024
    Doubles Open · Women
    1:31:59
    387/486
    Beat 20%
  5. Birmingham
    25 Oct 2024
    Doubles Open · Women
    1:22:08 PB
    397/973
    Beat 59%

Personal bests, by station

4:17
London 2025
1:38
Birmingham 2024
3:25
Birmingham 2024
3:52
Birmingham 2024
4:43
Birmingham 2024
1:51
London 2025
3:07
Birmingham 2024
3:31
Birmingham 2024

Station by station, race by race

Doubles Open · Women Doubles Open · Mixed Faster is lower
1000m SkiErg
4:46 4:17
50m Sled Push
2:27 1:38
50m Sled Pull
4:30 3:25
80m Burpee Broad Jump
5:09 3:52
1000m Row
5:24 4:43
200m Farmers Carry
2:12 1:51
100m Sandbag Lunges
4:32 3:07
Wall Balls
7:13 3:31