Skip to content
Athlete Norway

Sebastian Arntsen

Sebastian Arntsen has raced HYROX 3 times since 2025, all in the mixed Doubles Open. The fastest of 3 is 1:07:53 at Warsaw 2026, 132nd of 756 mixed teams, faster than 83% of the field. On the clock, that is 19:06 faster than the first of them, at Oslo 2025, both times with Martha Søndeled.

Best finish, by category
Doubles Open · Mixed
1:07:53
Warsaw 2026

Progress against the field

Sebastian Arntsen and Martha Søndeled have gained 13:39 on the field from Oslo 2025 to Warsaw 2026.

Over the same races everyone got 5:27 quicker, so 19:06 faster on the clock looks better than it was.

Time ahead of the field Up is better
Oslo 2025 Warsaw 2026

The largest gain on the field came from Oslo 2025 → Stockholm 2025: 11:13 in 83 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

3 races · 3 events

  1. Warsaw
    16 Apr 2026
    Doubles Open · Mixed
    1:07:53 PB
    132/756
    Beat 83%
    ↑ 119 days after Stockholm 2025, with Martha Søndeled 2:26 better than the field Why ↓

    2:26 better than the field: 4:57 faster on the clock, against 2:31 faster for everyone.

    Compare these two →
  2. Stockholm
    18 Dec 2025
    Doubles Open · Mixed
    1:12:50
    126/454
    Beat 72%
    ↑ 83 days after Oslo 2025, with Martha Søndeled 11:13 better than the field Why ↓

    11:13 better than the field: 14:09 faster on the clock, against 2:56 faster for everyone.

    Compare these two →
  3. Oslo
    26 Sep 2025
    Doubles Open · Mixed
    1:26:59
    337/484
    Beat 30%

Personal bests, by station

4:22
Oslo 2025
1:45
Warsaw 2026
3:21
Stockholm 2025
3:52
Warsaw 2026
4:32
Warsaw 2026
1:30
Stockholm 2025
3:24
Warsaw 2026
3:59
Warsaw 2026

Station by station, race by race

Doubles Open · Mixed Faster is lower
1000m SkiErg
4:27 4:22
50m Sled Push
2:20 1:45
50m Sled Pull
4:46 3:21
80m Burpee Broad Jump
4:22 3:52
1000m Row
4:56 4:32
200m Farmers Carry
1:37 1:30
100m Sandbag Lunges
6:56 3:24
Wall Balls
6:44 3:59