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Athlete Netherlands

Sem Cox

Sem Cox has raced HYROX 3 times since 2025, in 2 categories, most often the men's Individual Open (2). The fastest of 2 in the men's Individual Open is 1:15:27 at Mechelen 2026, 173rd of 561 men, faster than 69% of the field.

Best finish, by category
Individual Open · Men
1:15:27
Mechelen 2026
Doubles Open · Men
1:12:31
Maastricht 2025

Progress against the field

Between Mechelen 2026 and Maastricht 2026, Sem Cox lost 2:23 to the field.

The clock says 4:10 slower, but the races themselves got 1:47 slower for everyone.

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. Maastricht
    19 Sep 2026
    Individual Open · Men
    1:19:37
    118/394
    Beat 70%
    ↑ 177 days after Mechelen 2026 2:23 worse than the field Why ↓

    2:23 behind the field: 4:10 slower on the clock, against 1:47 slower for everyone.

    Compare these two →
  2. Mechelen
    26 Mar 2026
    Individual Open · Men
    1:15:27 PB
    173/561
    Beat 69%
  3. Maastricht
    19 Sep 2025
    Doubles Open · Men
    1:12:31 PB
    362/821
    Beat 56%

Personal bests, by station

4:03
Maastricht 2025
1:49
Maastricht 2025
2:51
Maastricht 2025
3:21
Maastricht 2025
4:19
Maastricht 2025
1:32
Maastricht 2025
3:21
Maastricht 2025
4:38
Maastricht 2025

Station by station, race by race

Individual Open · Men Faster is lower
1000m SkiErg
4:31 4:25
50m Sled Push
2:44 2:14
50m Sled Pull
4:22 3:47
80m Burpee Broad Jump
4:57 4:30
1000m Row
4:41 4:34
200m Farmers Carry
2:44 2:19
100m Sandbag Lunges
5:11 4:06
Wall Balls
6:11 5:56