Athlete · Open Men · 16-24 ·

NED

Sebastiaan Kossen

2 HYROX results (1 solo, 1 in a team) over 1 season. Personal bests: Open Men 1:41:42 (Rotterdam 2026) · Doubles Mixed 1:23:45 (Heerenveen 2026).

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1:41:42 Open Men time · Rotterdam 2026 also raced Doubles Mixed: each has its own best below

2209th of 2,721 Open Men place · Rotterdam 2026 among Open Men finishers there

1:23:45 latest race · Heerenveen 2026 first Doubles Mixed race Doubles Mixed with Maria Kossen

Sandbag lunges strongest segment · Rotterdam 2026 faster than 67% 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 Men1:41:42Rotterdam 2026 · 1 race Doubles Mixed1:23:45Heerenveen 2026 · 1 race · with Maria Kossen

Every race

2 results

tap a race for its full report

Race	Division	Time	Place	Runs	Stations	Roxzone
Heerenveen 2026 16 May 2026team: Sebastiaan Kossen, Maria Kossenwhat the whole field did →	Doubles Mixed · team 25-29	1:23:45	787th of 1,297	43:37	28:34	11:39	splits SkiErg4:15Sled push2:23Sled pull3:50Burpee broad jump3:49Row4:41Farmers carry1:26Sandbag lunges3:43Wall balls4:27Run 15:17Run 25:25Run 35:36Run 45:15Run 55:32Run 65:16Run 75:18Run 86:02Full report for this race →
Rotterdam 2026 18 Apr 2026what the whole field did →	Open Men · 16-24	1:41:42	2209th of 2,721	50:41	41:05	10:02	splits SkiErg5:11Sled push4:00Sled pull6:02Burpee broad jump5:40Row5:14Farmers carry3:26Sandbag lunges4:41Wall balls6:51Run 15:41Run 26:52Run 35:11Run 45:24Run 56:37Run 65:28Run 75:49Run 89:41Full 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

Rotterdam 2026, against 2,721 Open Men

Full race report →

Shape of the race

50% top SkiPushPullBBJRowCarryLungesWall ballsRoxzoneRuns

Sebastiaanedge = 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 12%

Sled push faster than 6%

Sled pull faster than 11%

Burpee broad jump faster than 52%

Row faster than 20%

Farmers carry faster than 4%

Sandbag lunges faster than 67%

Wall balls faster than 57%

Roxzone faster than 10%

Runs (8 km) faster than 13%

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

Minutes against the typical finisher

SkiErg 0:26 slower

Sled push 1:16 slower

Sled pull 1:31 slower

Burpee broad jump 0:03 faster

Row 0:23 slower

Farmers carry 1:15 slower

Sandbag lunges 0:31 faster

Wall balls 0:24 faster

Roxzone 3:07 slower

Runs (8 km) 9:08 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: Sebastiaan against the typical Open Men finisher

Sebastiaan1:41:42

5:415:116:524:005:116:025:245:406:375:145:283:265:494:419:416:5110:02

Typical Open Men1:25:21

4:544:454:432:445:024:315:065:435:114:515:072:115:085:126:037:156:55

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.

Roxzone cost 3:07 against the typical Open Men finisher at Rotterdam 2026. The pacing guide is where that time comes back.

The RoxHype app

Fix roxzone. Then beat 1:41:42.

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