Athlete · Open Men · 35-39 ·

NED

Wouter Kalkman

3 HYROX results (2 solo, 1 in a team) over 2 seasons. Personal bests: Open Men 1:30:40 (Utrecht 2025) · Doubles Mixed 1:32:23 (Heerenveen 2026).

See the full race report →Compare with another athlete Is this you? Email me my next report

1:30:40 best Open Men time · Utrecht 2025 also raced Doubles Mixed: each has its own best below

1069th of 1,912 best Open Men place · Utrecht 2025 among Open Men finishers there

1:32:23 latest race · Heerenveen 2026 first Doubles Mixed race Doubles Mixed with Willemijn den Boer

Row strongest segment · Utrecht 2025 faster than 61% of the Open Men field on it

1 · Tap any raceEach row below opens that race's report: every split against the field, where the time went, where it can come back.

2 · Read the station profileFurther down: the shape of the race, the strongest and weakest segments, and the race as one bar against the typical finisher.

3 · Turn it into trainingEvery weak station links to its workouts on RoxHype; the app writes the eight weeks from these exact splits.

Personal bests

One best per race type

solo, doubles and relay times are different races, so each has its own best

Open Men1:30:40Utrecht 2025 · 2 races Doubles Mixed1:32:23Heerenveen 2026 · 1 race · with Willemijn den Boer

Open Men: finish time, race by race

oldest to newest · a line going down means getting faster

1:31:001:32:001:33:001:34:00 best 1:30:40

Each dot is one Open Men race. Not enough complete, clean Open Men races yet to measure the change.

Every race

3 results

tap a race for its full report

Race	Division	Time	Place	Runs	Stations	Roxzone
Heerenveen 2026 14 May 2026team: Willemijn den Boer, Wouter Kalkmanwhat the whole field did →	Doubles Mixed · team 35-39	1:32:23	1064th of 1,297	56:52	26:40	8:56	splits SkiErg4:20Sled push1:57Sled pull2:57Burpee broad jump3:23Row4:17Farmers carry1:35Sandbag lunges4:02Wall balls4:09Run 17:06Run 26:48Run 36:51Run 46:59Run 57:11Run 67:11Run 77:16Run 87:33Full report for this race →
Utrecht 2025 28 Nov 2025what the whole field did →	Open Men · 35-39	1:30:40	1069th of 1,912	44:55	39:53	5:58	splits SkiErg4:31Sled push3:53Sled pull5:21Burpee broad jump6:35Row4:43Farmers carry2:10Sandbag lunges5:16Wall balls7:24Run 15:00Run 25:16Run 35:49Run 45:37Run 56:03Run 66:02Run 76:10Run 85:03Full report for this race →
Rotterdam 2025 1 Mar 2025what the whole field did →	Open Men · 35-39	1:34:37	1773rd of 2,469	47:04	40:16	7:21	splits SkiErg4:17Sled push3:05Sled pull5:31Burpee broad jump7:28Row4:32Farmers carry2:30Sandbag lunges6:06Wall balls6:47Run 14:53Run 24:53Run 35:59Run 45:37Run 56:00Run 66:07Run 76:27Run 87:12Full 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.

Station profile · best Open Men race

Utrecht 2025, against 1,912 Open Men

Full race report →

Shape of the race

50% top SkiPushPullBBJRowCarryLungesWall ballsRoxzoneRuns

Wouteredge = faster than everyone, centre = slowest

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

SkiErg faster than 48%

Sled push faster than 39%

Sled pull faster than 39%

Burpee broad jump faster than 32%

Row faster than 61%

Farmers carry faster than 56%

Sandbag lunges faster than 47%

Wall balls faster than 49%

Roxzone faster than 44%

Runs (8 km) faster than 43%

Longer is better: the share of the field this segment beat.

Minutes against the typical finisher

SkiErg 0:01 slower

Sled push 0:15 slower

Sled pull 0:17 slower

Burpee broad jump 0:52 slower

Row 0:05 faster

Farmers carry 0:03 faster

Sandbag lunges 0:06 slower

Wall balls 0:04 slower

Roxzone 0:18 slower

Runs (8 km) 1:04 slower

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: Wouter against the typical Open Men finisher

Wouter1:30:40

5:004:315:163:535:495:215:376:356:034:436:022:106:105:165:037:245:58

Typical Open Men1:27:31

4:484:305:133:385:405:045:405:435:504:485:412:135:395:104:547:205:40

RunsStationsRoxzone (moving between stations)

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.

Burpee broad jump cost 0:52 against the typical Open Men finisher at Utrecht 2025. The burpee broad jump guide shows whether that is strength or pacing, and the workouts that fix it.

The RoxHype app

Fix burpee broad jump. Then beat 1:30:40.

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

Build my plan in the app App Store Google Play

Free to download. Used by more than 40,000 HYROX athletes.

The RoxHype app: today's session and the race countdown