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Athlete Netherlands

Klaartje Nijssen

Since 2024, Klaartje Nijssen has raced HYROX 5 times at 4 events, every one in the women's Doubles Open. The fastest of 5 is 1:12:41 at Heerenveen 2026, a top-10% finish: 56th of 737 women's teams.

Best finish, by category
Doubles Open · Women
1:12:41
Heerenveen 2026

Progress against the field

From Rotterdam 2025 to Heerenveen 2025, Klaartje Nijssen and Anneke Troost got 0:29 faster than the field.

The clock says 2:56 faster, but the races themselves got 2:27 quicker 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. The summary above covers Doubles Open · Women, with Anneke Troost, the one raced most; every comparison is in the list below.

Every race

5 races · 4 events

  1. Heerenveen
    14 May 2026
    Doubles Open · Women
    1:12:41 PB
    56/737
    Beat 92%
  2. Heerenveen
    9 May 2025
    Doubles Open · Women
    1:13:53
    36/292
    Beat 88%
    ↑ 71 days after Rotterdam 2025, with Anneke Troost 0:29 better than the field Why ↓

    2:56 faster on the clock, and the race was 2:27 faster for everyone, so 0:29 of it was this pair.

    Compare these two →
  3. Rotterdam
    27 Feb 2025
    Doubles Open · Women
    1:16:49
    44/243
    Beat 82%
  4. Rotterdam
    27 Feb 2025
    Doubles Open · Women
    1:21:49
    185/633
    Beat 71%
    ↑ 140 days after Amsterdam 2024, with Christien Oudbier 3:29 better than the field Why ↓

    3:29 better than the field: 7:07 faster on the clock, against 3:38 faster for everyone.

    Compare these two →
  5. Amsterdam
    10 Oct 2024
    Doubles Open · Women
    1:28:56
    365/657
    Beat 44%

Personal bests, by station

4:17
Rotterdam 2025
1:36
Amsterdam 2024
3:18
Rotterdam 2025
3:08
Heerenveen 2026
4:52
Rotterdam 2025
1:25
Heerenveen 2025
3:03
Heerenveen 2025
3:23
Rotterdam 2025

Station by station, race by race

Doubles Open · Women Faster is lower
1000m SkiErg
4:41 4:17
50m Sled Push
1:54 1:36
50m Sled Pull
3:49 3:18
80m Burpee Broad Jump
4:23 3:08
1000m Row
4:57 4:52
200m Farmers Carry
1:40 1:25
100m Sandbag Lunges
3:35 3:03
Wall Balls
4:33 3:23