Iris vs Tirza
NED · Open Women · 4 results Iris Kolkman
NED · Open Women · 4 results Tirza Dumernit
Station radar · best race with a field of 30 or more
Iris: Heerenveen 2026, Open Women · Tirza: Heerenveen 2026, Open Women
no splitWall ballsRoxzoneRuns
This chart shows where Iris and Tirza sat in the field on each part of the race: the edge is faster than everyone, the centre is the slowest.Iris: strongest on Push (faster than 96% of the field), weakest on Roxzone (faster than 38%).Tirza: strongest on Push (faster than 97% of the field), weakest on Row (faster than 51%).
See the numbers
| Part | Iris: faster than | Tirza: faster than |
|---|---|---|
| Ski | 54% | 67% |
| Push | 96% | 97% |
| Pull | 92% | 95% |
| BBJ | 60% | 90% |
| Row | 68% | 51% |
| Carry | 83% | 66% |
| Lunges | no split | 73% |
| Wall balls | 86% | 58% |
| Roxzone | 38% | 65% |
| Runs | 66% | 68% |
Each athlete against their own field at their own best race (division, gender, that venue). Further out is faster.
Part by part
| Part | Iris | Tirza |
|---|---|---|
| SkiErg | 54% | 67% |
| Sled push | 96% | 97% |
| Sled pull | 92% | 95% |
| Burpee broad jump | 60% | 90% |
| Row | 68% | 51% |
| Farmers carry | 83% | 66% |
| Sandbag lunges | — | 73% |
| Wall balls | 86% | 58% |
| Roxzone (moving) | 38% | 65% |
| Runs (8 km) | 66% | 68% |
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.Iris · Heerenveen 2026 · Open Women: 43:27 running, 29:40 at the stations and 9:56 in the roxzone; the longest station was the burpee broad jumps (6:35).Below, Tirza · Heerenveen 2026 · Open Women: 43:09 running, 33:43 at the stations and 8:21 in the roxzone; the longest station was the wall balls (6:18) and the shortest the sled push (1:56).
See the numbers
| Part | Iris · Heerenveen 2026 · Open Women | Tirza · Heerenveen 2026 · Open Women |
|---|---|---|
| Run 1 | 4:53 | 5:18 |
| SkiErg | 5:04 | 4:57 |
| Run 2 | 4:53 | 5:17 |
| Sled push | 1:59 | 1:56 |
| Run 3 | 5:19 | 5:20 |
| Sled pull | 3:57 | 3:47 |
| Run 4 | 5:18 | 5:22 |
| Burpee broad jump | 6:35 | 5:01 |
| Run 5 | 5:33 | 5:24 |
| Row | 5:12 | 5:23 |
| Run 6 | 5:31 | 5:18 |
| Farmers carry | 1:54 | 2:04 |
| Run 7 | 5:45 | 5:24 |
| Sandbag lunges | — | 4:17 |
| Run 8 | 6:15 | 5:46 |
| Wall balls | 4:59 | 6:18 |
| Roxzone | 9:56 | 8:21 |
| Finish | 1:25:08 | 1:25:07 |
Head to head: 1 race they both ran
| Race | Iris | Tirza | Gap |
|---|---|---|---|
| Heerenveen 2026 Open Women · 17 May 2026 | 1:25:08 | 1:25:07 | 0:01 · Tirza faster |
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