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Athlete United Kingdom

Isla Horsburgh

Since 2023, Isla Horsburgh has raced HYROX 5 times across 3 categories, the mixed Doubles Open most often (3). The fastest of 3 in the mixed Doubles Open is 1:03:44 at London 2023, a top-10% finish: 29th of 909 mixed teams. With Ronnie Duncan both times, that is 7:12 quicker on the clock than the first of them, at Manchester 2023.

Best finish, by category
Doubles Open · Mixed
1:03:44
London 2023
Doubles Pro · Women
1:00:50
Dublin 2025
Doubles Open · Women
1:08:19
Glasgow 2025

Progress against the field

Isla Horsburgh and Ronnie Duncan have dropped 0:22 behind the field from Manchester 2023 to London 2023.

Over the same races everyone got 7:34 quicker, so 7:12 faster on the clock looks better than it was.

Time ahead of the field Up is better
Manchester 2023 London 2023
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. Dublin
    12 Nov 2025
    Doubles Pro · Women
    1:00:50 PB
    4/110
    Beat 96%
  2. Glasgow
    12 Mar 2025
    Doubles Open · Women
    1:08:19 PB
    34/1051
    Beat 97%
  3. London
    26 Nov 2023
    Doubles Open · Mixed
    1:03:44 PB
    29/909
    Beat 97%
    ↑ 36 days after Birmingham 2023, with Ronnie Duncan 0:28 worse than the field Faster on the clock, behind the field Why ↓

    4:05 faster on the clock looks better than it was: the race was 4:33 faster for everyone, which leaves this 0:28 behind the field.

    Compare these two →
  4. Birmingham
    21 Oct 2023
    Doubles Open · Mixed
    1:07:49
    33/352
    Beat 91%
    ↑ 266 days after Manchester 2023, with Ronnie Duncan 0:06 better than the field Why ↓

    3:07 faster on the clock, and the race was 3:01 faster for everyone. Whatever changed, it changed for all of them.

    Compare these two →
  5. Manchester
    28 Jan 2023
    Doubles Open · Mixed
    1:10:56
    37/211
    Beat 83%

Personal bests, by station

3:51
Birmingham 2023
1:29
Glasgow 2025
2:31
Glasgow 2025
2:28
London 2023
4:09
Dublin 2025
1:27
Glasgow 2025
2:52
Glasgow 2025
3:27
Dublin 2025

Station by station, race by race

Doubles Open · Mixed Faster is lower
1000m SkiErg
4:00 3:51
50m Sled Push
2:16 1:51
50m Sled Pull
4:06 2:42
80m Burpee Broad Jump
3:45 2:28
1000m Row
4:26 4:21
200m Farmers Carry
1:37 1:28
100m Sandbag Lunges
4:05 3:01
Wall Balls
4:56 3:52