NED Jan-Willem Kalkman
7 HYROX results (3 solo, 4 in a team) over 2 seasons. Personal bests: Open Men 1:17:27 (Maastricht 2025) · Pro Men 1:24:28 (Rotterdam 2026) · Doubles Men 1:00:04 (Ghent 2025) · Pro Doubles Men 1:04:10 (Amsterdam 2026).
One best per race type
Finish time, race by race: one race type at a time
oldest to newest · a line going down means getting fasterEach dot is one Open Men race. Not enough complete, clean Open Men races yet to measure the change.
Each dot is one Doubles Men race. Not enough complete, clean Doubles Men races yet to measure the change. Team times are shared with a partner, so they move with who you race with.
7 results
| Race | Division | Time | Place | Runs | Stations | Roxzone | |
|---|---|---|---|---|---|---|---|
| Rotterdam 2026 17 Apr 2026what the whole field did → | Pro Men · 35-39 | 1:24:28 | 195th of 348 | 35:41 | 43:01 | 5:51 | splitsSkiErg4:49Sled push4:46Sled pull6:19Burpee broad jump4:39Row5:07Farmers carry2:32Sandbag lunges6:14Wall balls8:35Run 14:09Run 24:00Run 34:22Run 44:25Run 54:25Run 64:28Run 74:39Run 85:17Full report for this race → |
| Amsterdam 2026 23 Jan 2026team: Sander Kalkman, Jan-Willem Kalkmanwhat the whole field did → | Pro Doubles Men · team 35-39 | 1:04:10 | top 37% 177/486 | 33:30 | 26:23 | 4:22 | splitsSkiErg3:55Sled push2:19Sled pull3:58Burpee broad jump2:35Row4:15Farmers carry1:41Sandbag lunges3:32Wall balls4:08Run 13:17Run 24:01Run 34:11Run 44:17Run 54:22Run 64:16Run 74:21Run 84:48Full report for this race → |
| Ghent 2025 14 Dec 2025team: Sander Kalkman, Jan-Willem Kalkmanwhat the whole field did → | Doubles Men · team 35-39 | 1:00:04 | top 5% 64/1,448 | 33:35 | 22:00 | 4:34 | splitsSkiErg3:58Sled push1:48Sled pull2:41Burpee broad jump1:57Row4:09Farmers carry1:34Sandbag lunges2:16Wall balls3:37Run 14:11Run 23:57Run 34:10Run 44:09Run 54:16Run 64:10Run 74:17Run 84:29Full report for this race → |
| Utrecht 2025 30 Nov 2025team: Sander Kalkman, Jan-Willem Kalkmanwhat the whole field did → | Doubles Men · team 35-39 | 1:01:45 | top 6% 76/1,342 | 35:40 | 22:39 | 3:30 | splitsSkiErg3:46Sled push1:47Sled pull2:33Burpee broad jump2:12Row4:13Farmers carry1:39Sandbag lunges2:35Wall balls3:54Run 13:56Run 24:29Run 34:45Run 44:41Run 54:45Run 64:43Run 74:46Run 83:38Full report for this race → |
| Maastricht 2025 20 Sept 2025what the whole field did → | Open Men · 35-39 | 1:17:27 | top 20% 370/1,936 | 37:22 | 34:15 | 5:55 | splitsSkiErg4:21Sled push2:36Sled pull4:49Burpee broad jump4:38Row4:48Farmers carry1:49Sandbag lunges4:47Wall balls6:27Run 14:19Run 24:14Run 34:35Run 44:37Run 54:40Run 64:40Run 74:45Run 85:35Full report for this race → |
| Mechelen 2025 4 Apr 2025team: Sander Kalkman, Jan-Willem Kalkmanwhat the whole field did → | Doubles Men · team 30-39 | 1:03:35 | top 12% 104/898 | 33:58 | 22:12 | 7:25 | splitsSkiErg3:41Sled push1:18Sled pull2:49Burpee broad jump2:23Row4:13Farmers carry1:24Sandbag lunges2:42Wall balls3:42Run 15:24Run 23:54Run 34:02Run 44:06Run 54:03Run 64:01Run 74:07Run 84:21Full report for this race → |
| Rotterdam 2025 1 Mar 2025what the whole field did → | Open Men · 30-34 | 1:19:42 | top 30% 734/2,469 | 39:32 | 34:48 | 5:27 | splitsSkiErg4:15Sled push2:50Sled pull5:02Burpee broad jump4:21Row4:46Farmers carry2:04Sandbag lunges5:09Wall balls6:21Run 14:36Run 24:31Run 34:49Run 45:00Run 55:02Run 64:57Run 74:59Run 85:43Full report for this race → |
Place is the position among timed finishers in the same race, division and gender; a doubles place is the team's. Runs is the organiser's official run total (it can differ from the eight laps added up by a few seconds), stations the eight stations added up, and roxzone the time moving between them. The age group is the one entered for that race; for a team it is the team’s age group. How the numbers are made.
Maastricht 2025, against 1,936 Open Men
Shape of the race
Each spoke is one segment (roxzone is the time moving between stations). The further out, the bigger the share of the field beaten on it. A round shape is an even race; a dent is a weak station.
How you ranked on each segment
Longer is better: the share of the field this segment beat.
Minutes against the typical finisher
Green, left of centre: faster than the typical Open Men finisher at this race. Orange, right: slower, and by how much.
The race as one bar: Jan-Willem against the typical Open Men finisher
Left to right is the race in order: run 1, SkiErg, run 2, sled push, and so on. A block wider than the one below it is a slower segment than the typical finisher.
Training for the next one? Let's beat 1:17:27.
The RoxHype app takes your real splits, your kit and your next race date, and builds the weeks between.
- Every session written for your weak station, not a generic plan
- Rebuilt each week from what you actually did
- Race-day pacing from your own splits
Free to download. Used by more than 40,000 HYROX athletes.
