Boudewijn vs Sem

NED NED · Open Men · 2 results

Boudewijn Schiermeier

1:09:12 best Open Men time · Rotterdam 2025
126th of 2,469 place in that race · 2,469 Open Men finishers
NED NED · Open Men · 6 results

Sem Jorink

1:09:14 best Open Men time · Rotterdam 2025
128th of 2,469 place in that race · 2,469 Open Men finishers

Station radar · best race with a field of 30 or more

Boudewijn: Rotterdam 2025, Open Men · Sem: Rotterdam 2025, Open Men

50% top SkiPushPullBBJRowCarryLungesWall ballsRoxzoneRuns
BoudewijnSemedge = faster than everyone, centre = slowest

This chart shows where Boudewijn and Sem sat in the field on each part of the race: the edge is faster than everyone, the centre is the slowest.Boudewijn: strongest on Wall balls (faster than 97% of the field), weakest on Ski (faster than 69%).Sem: strongest on BBJ (faster than 99% of the field), weakest on Ski (faster than 46%).

See the numbers
Part Boudewijn: faster than Sem: faster than
Ski 69% 46%
Push 90% 92%
Pull 89% 94%
BBJ 94% 99%
Row 79% 71%
Carry 84% 61%
Lunges 90% 95%
Wall balls 97% 91%
Roxzone 95% 94%
Runs 89% 87%

Each athlete against their own field at their own best race (division, gender, that venue). Further out is faster.

Part by part

Part Boudewijn Sem
SkiErg 69% 46%
Sled push 90% 92%
Sled pull 89% 94%
Burpee broad jump 94% 99%
Row 79% 71%
Farmers carry 84% 61%
Sandbag lunges 90% 95%
Wall balls 97% 91%
Roxzone (moving) 95% 94%
Runs (8 km) 89% 87%

The share of their own field each athlete beat on that segment, at the race named on the left. Higher is better; green marks the better of the two. A dash means no split was published.

Those races as one bar each

Boudewijn · Rotterdam 2025 · Open Men1:09:12
4:234:174:142:134:313:554:313:514:474:304:191:454:373:524:573:554:42
Sem · Rotterdam 2025 · Open Men1:09:14
4:234:274:272:104:523:444:382:574:434:344:232:004:313:334:524:204:48
RunsStationsRoxzone (moving between stations)

This chart draws the race in order, left to right: each 1 km run (blue), each station (yellow) and the roxzone (grey), sized by its time.Boudewijn · Rotterdam 2025 · Open Men: 36:19 running, 28:19 at the stations and 4:42 in the roxzone; the longest station was the row (4:30).Below, Sem · Rotterdam 2025 · Open Men: 36:49 running, 27:45 at the stations and 4:48 in the roxzone; the longest station was the row (4:34).

See the numbers
Part Boudewijn · Rotterdam 2025 · Open Men Sem · Rotterdam 2025 · Open Men
Run 1 4:23 4:23
SkiErg 4:17 4:27
Run 2 4:14 4:27
Sled push 2:13 2:10
Run 3 4:31 4:52
Sled pull 3:55 3:44
Run 4 4:31 4:38
Burpee broad jump 3:51 2:57
Run 5 4:47 4:43
Row 4:30 4:34
Run 6 4:19 4:23
Farmers carry 1:45 2:00
Run 7 4:37 4:31
Sandbag lunges 3:52 3:33
Run 8 4:57 4:52
Wall balls 3:55 4:20
Roxzone 4:42 4:48
Finish 1:09:12 1:09:14

Head to head: 1 race they both ran

Race Boudewijn Sem Gap
Rotterdam 2025 Open Men · 27 Feb 2025 1:09:12 1:09:14 0:02 · Boudewijn faster
The RoxHype app

Close the gap at your next race.

The RoxHype app is your training plan to race day: built from your splits, your kit and your race date, and adjusted every week.

  • A week-by-week plan that counts down to your race
  • Extra work on your slowest stations
  • Adjusts every week to what you actually did

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

RoxHype app home: days to your HYROX, your expected finish range and this week's sessions RoxHype workout player guiding a sled push, with the next exercise lined up