Jaap Koster
3 HYROX races over 1 season, all in a team with 2 partners. Best Doubles Mixed time: 1:31:44 at Amsterdam 2026.
Doubles Mixed: finish time, race by race
Oldest to newest; a line going down means getting fasterEach dot is one Doubles Mixed race. Not enough complete, clean Doubles Mixed races yet to measure the change. Team times are shared with a partner, so they move with who you race with.
3 results
| Race | Division | Time | Place | Runs | Stations | Roxzone | Report | |
|---|---|---|---|---|---|---|---|---|
| Heerenveen 2026 14 May 2026team: Jaap Koster, Marissa Meulendijkswhole field → | Doubles Mixed · team 45-49 | 1:52:52 | 1270th of 1,29767th of 68 aged 45-49 | 1:02:53 | 37:04 | 12:58 | View results | See splits Hide splitsSkiErg4:33faster than 12%Sled push2:22faster than 14%Sled pull5:22faster than 1%Burpee broad jump5:35faster than 7%Row4:47faster than 44%Farmers carry2:16faster than 4%Sandbag lunges5:16faster than 8%Wall balls6:53faster than 5%Runs (8 km)1:02:53faster than 2%Roxzone12:58faster than 3%Run 16:37faster than 5%Run 26:56faster than 4%Run 37:40faster than 3%Run 47:42faster than 3%Run 58:14faster than 2%Run 68:20faster than 1%Run 78:21faster than 1%Run 89:07faster than 2%Full report for this race → |
| Rotterdam 2026 19 Apr 2026team: Jaap koster, Marissa Meulendijkswhole field → | Doubles Mixed · team 45-49 | 1:59:18 | 2177th of 2,21383rd of 84 aged 45-49 | 1:09:58 | 38:05 | 11:20 | View results | See splits Hide splitsSkiErg5:09faster than 4%Sled push2:19faster than 17%Sled pull3:43faster than 48%Burpee broad jump6:15faster than 3%Row5:00faster than 33%Farmers carry2:18faster than 5%Sandbag lunges5:38faster than 9%Wall balls7:43faster than 4%Runs (8 km)1:09:58faster than 1%Roxzone11:20faster than 4%Run 16:58faster than 6%Run 27:06faster than 5%Run 311:42Run 48:21faster than 3%Run 58:31faster than 3%Run 68:19faster than 3%Run 78:47faster than 2%Run 810:19faster than 3%Full report for this race → |
| Amsterdam 2026 21 Jan 2026team: Annique Koster, Jaap Kosterwhole field → | Doubles Mixed · team 40-44 | 1:31:44 | 1878th of 2,259207th of 260 aged 40-44 | 49:19 | 35:40 | 6:47 | View results | See splits Hide splitsSkiErg4:31faster than 15%Sled push2:42faster than 11%Sled pull4:02faster than 43%Burpee broad jump5:01faster than 8%Row5:11faster than 9%Farmers carry2:14faster than 6%Sandbag lunges5:18faster than 9%Wall balls6:41faster than 6%Runs (8 km)49:19faster than 23%Roxzone6:47faster than 46%Run 14:32faster than 41%Run 25:31faster than 42%Run 35:46faster than 40%Run 45:54faster than 36%Run 56:40faster than 17%Run 66:53faster than 11%Run 76:41faster than 15%Run 87:26faster than 16%Full report for this race → |
How to read
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.
The fastest Jaap has done each station
| Part | Best | Race | Typical |
|---|---|---|---|
| SkiErg | 4:31 | Amsterdam 2026 · best of 3 | 4:20 |
| Sled push | 2:19 | Rotterdam 2026 · best of 3 | 2:11 |
| Sled pull | 3:43 | Rotterdam 2026 · best of 3 | 3:59 |
| Burpee broad jump | 5:01 | Amsterdam 2026 · best of 3 | 3:35 |
| Row | 4:47 | Heerenveen 2026 · best of 3 | 4:47 |
| Farmers carry | 2:14 | Amsterdam 2026 · best of 3 | 1:50 |
| Sandbag lunges | 5:16 | Heerenveen 2026 · best of 3 | 4:03 |
| Wall balls | 6:41 | Amsterdam 2026 · best of 3 | 4:34 |
| Runs (8 km) | 49:19 | Amsterdam 2026 · best of 3 | 45:36 |
| Roxzone | 6:47 | Amsterdam 2026 · best of 3 | 7:11 |
How to read
Each station's best across Jaap's Doubles Mixed races, from different races, against the typical Doubles Mixed split. Venues differ (sled carpets, run laps, where the mats sit), so a best can owe something to the venue.
2 team partners
- Marissa Meulendijks2 races
- Annique Koster1 race
From the team results above. A name opens the search: a partner can have more than one page.
Amsterdam 2026, against 2,259 Doubles Mixed
Shape of the race
Further out means you beat more of the field on that part. A dent is a weak spot.
How you ranked on each station
Longer is better: the share of the field you beat.
Minutes against the typical finisher
Green, left of centre: faster than the typical Doubles Mixed finisher at this race. Orange, right: slower, and by how much.
The race as one bar: Jaap against the typical Doubles Mixed finisher
The race in order, left to right. A wider block than the one below is slower than typical.
Wall balls cost 2:08 against the typical Doubles Mixed finisher at Amsterdam 2026. The wall balls guide shows whether that is strength or pacing, and the workouts that fix it.
Fix wall balls. Then beat 1:31:44.
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.