Marcel vs Jan-Willem
NED · Pro Men · 3 results Marcel Dekker
NED · Open Men · 7 results Jan-Willem Kalkman
Station radar · best race with a field of 30 or more
Marcel: Heerenveen 2025, Open Men · Jan-Willem: Maastricht 2025, Open Men
This chart shows where Marcel and Jan-Willem sat in the field on each part of the race: the edge is faster than everyone, the centre is the slowest.Marcel: strongest on Push (faster than 99% of the field), weakest on Runs (faster than 54%).Jan-Willem: strongest on Roxzone (faster than 87% of the field), weakest on Row (faster than 50%).
See the numbers
| Part | Marcel: faster than | Jan-Willem: faster than |
|---|---|---|
| Ski | 89% | 68% |
| Push | 99% | 57% |
| Pull | 89% | 63% |
| BBJ | 84% | 82% |
| Row | 98% | 50% |
| Carry | 62% | 79% |
| Lunges | 64% | 63% |
| Wall balls | 60% | 77% |
| Roxzone | 83% | 87% |
| Runs | 54% | 78% |
Each athlete against their own field at their own best race (division, gender, that venue). Further out is faster.
Part by part
| Part | Marcel | Jan-Willem |
|---|---|---|
| SkiErg | 89% | 68% |
| Sled push | 99% | 57% |
| Sled pull | 89% | 63% |
| Burpee broad jump | 84% | 82% |
| Row | 98% | 50% |
| Farmers carry | 62% | 79% |
| Sandbag lunges | 64% | 63% |
| Wall balls | 60% | 77% |
| Roxzone (moving) | 83% | 87% |
| Runs (8 km) | 54% | 78% |
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
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.Marcel · Heerenveen 2025 · Open Men: 39:42 running, 31:02 at the stations and 6:46 in the roxzone; the longest station was the wall balls (5:56) and the shortest the sled push (1:50).Below, Jan-Willem · Maastricht 2025 · Open Men: 37:25 running, 34:15 at the stations and 5:55 in the roxzone; the longest station was the wall balls (6:27).
See the numbers
| Part | Marcel · Heerenveen 2025 · Open Men | Jan-Willem · Maastricht 2025 · Open Men |
|---|---|---|
| Run 1 | 4:39 | 4:19 |
| SkiErg | 4:07 | 4:21 |
| Run 2 | 4:37 | 4:14 |
| Sled push | 1:50 | 2:36 |
| Run 3 | 4:43 | 4:35 |
| Sled pull | 3:44 | 4:49 |
| Run 4 | 4:56 | 4:37 |
| Burpee broad jump | 4:28 | 4:38 |
| Run 5 | 5:11 | 4:40 |
| Row | 4:14 | 4:48 |
| Run 6 | 5:05 | 4:40 |
| Farmers carry | 1:59 | 1:49 |
| Run 7 | 5:04 | 4:45 |
| Sandbag lunges | 4:45 | 4:47 |
| Run 8 | 5:27 | 5:35 |
| Wall balls | 5:56 | 6:27 |
| Roxzone | 6:46 | 5:55 |
| Finish | 1:17:23 | 1:17:27 |
Head to head: 1 race they both ran
| Race | Marcel | Jan-Willem | Gap |
|---|---|---|---|
| Rotterdam 2026 Pro Men · 15 Apr 2026 | 1:24:37 | 1:24:28 | 0:09 · Jan-Willem faster |
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