Kay vs Serge

NED NED · Open Men · 2 results

Kay van Harskamp

1:14:14 best Open Men time · Amsterdam 2024
379th of 2,198 place in that race · 2,198 Open Men finishers
NED NED · Open Men · 6 results

Serge Boussen

1:17:58 best Open Men time · Mechelen 2026
977th of 2,671 place in that race · 2,671 Open Men finishers

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

Kay: Amsterdam 2024, Open Men · Serge: Mechelen 2026, Open Men

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

This chart shows where Kay and Serge sat in the field on each part of the race: the edge is faster than everyone, the centre is the slowest.Kay: strongest on BBJ (faster than 90% of the field), weakest on Wall balls (faster than 69%).Serge: strongest on Wall balls (faster than 73% of the field), weakest on Carry (faster than 38%).

See the numbers
Part Kay: faster than Serge: faster than
Ski 85% 70%
Push 78% 54%
Pull 90% 51%
BBJ 90% 69%
Row 81% 56%
Carry 90% 38%
Lunges 74% 39%
Wall balls 69% 73%
Roxzone 78% 52%
Runs 77% 65%

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

Part by part

Part Kay Serge
SkiErg 85% 70%
Sled push 78% 54%
Sled pull 90% 51%
Burpee broad jump 90% 69%
Row 81% 56%
Farmers carry 90% 38%
Sandbag lunges 74% 39%
Wall balls 69% 73%
Roxzone (moving) 78% 52%
Runs (8 km) 77% 65%

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

Kay · Amsterdam 2024 · Open Men1:14:14
5:004:094:432:035:043:224:573:565:014:305:041:314:464:155:195:295:15
Serge · Mechelen 2026 · Open Men1:17:58
3:404:194:222:384:184:204:294:494:454:414:302:134:375:205:355:427:46
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.Kay · Amsterdam 2024 · Open Men: 39:55 running, 29:15 at the stations and 5:15 in the roxzone; the longest station was the wall balls (5:29).Below, Serge · Mechelen 2026 · Open Men: 36:16 running, 34:02 at the stations and 7:46 in the roxzone; the longest station was the wall balls (5:42).

See the numbers
Part Kay · Amsterdam 2024 · Open Men Serge · Mechelen 2026 · Open Men
Run 1 5:00 3:40
SkiErg 4:09 4:19
Run 2 4:43 4:22
Sled push 2:03 2:38
Run 3 5:04 4:18
Sled pull 3:22 4:20
Run 4 4:57 4:29
Burpee broad jump 3:56 4:49
Run 5 5:01 4:45
Row 4:30 4:41
Run 6 5:04 4:30
Farmers carry 1:31 2:13
Run 7 4:46 4:37
Sandbag lunges 4:15 5:20
Run 8 5:19 5:35
Wall balls 5:29 5:42
Roxzone 5:15 7:46
Finish 1:14:14 1:17:58

Head to head: 1 race they both ran

Race Kay Serge Gap
Heerenveen 2025 Open Men · 10 May 2025 1:19:54 1:19:58 0:04 · Kay 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