Iza vs Marianne
NED · Pro Women · 23 results Iza Tulkens
NED · Pro Women · 32 results Marianne Koster
Station radar · best race with a field of 30 or more
Iza: Amsterdam 2026, Pro Women · Marianne: Maastricht 2025, Open Women
Not the same division. Iza's race here is Pro Women and Marianne's is Open Women, with different weights and fields. The chart shows how each did against their own field, not who is faster.
This chart shows where Iza and Marianne sat in the field on each part of the race: the edge is faster than everyone, the centre is the slowest.Iza: strongest on BBJ (faster than 99% of the field), weakest on Ski (faster than 57%).Marianne: strongest on Wall balls (faster than 99% of the field), weakest on Carry (faster than 93%).
See the numbers
| Part | Iza: faster than | Marianne: faster than |
|---|---|---|
| Ski | 57% | 98% |
| Push | 78% | 96% |
| Pull | 86% | 98% |
| BBJ | 99% | 97% |
| Row | 74% | 99% |
| Carry | 70% | 93% |
| Lunges | 99% | 99% |
| Wall balls | 71% | 99% |
| Roxzone | 96% | 98% |
| Runs | 98% | 98% |
Each athlete against their own field at their own best race (division, gender, that venue). Further out is faster.
Part by part
| Part | Iza | Marianne |
|---|---|---|
| SkiErg | 57% | 98% |
| Sled push | 78% | 96% |
| Sled pull | 86% | 98% |
| Burpee broad jump | 99% | 97% |
| Row | 74% | 99% |
| Farmers carry | 70% | 93% |
| Sandbag lunges | 99% | 99% |
| Wall balls | 71% | 99% |
| Roxzone (moving) | 96% | 98% |
| Runs (8 km) | 98% | 98% |
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.Iza · Amsterdam 2026 · Pro Women: 30:31 running, 31:05 at the stations and 4:33 in the roxzone; the longest station was the wall balls (5:10).Below, Marianne · Maastricht 2025 · Open Women: 30:08 running, 25:34 at the stations and 4:42 in the roxzone; the longest station was the SkiErg (4:30).
See the numbers
| Part | Iza · Amsterdam 2026 · Pro Women | Marianne · Maastricht 2025 · Open Women |
|---|---|---|
| Run 1 | 2:46 | 5:40 |
| SkiErg | 4:42 | 4:30 |
| Run 2 | 3:43 | 4:01 |
| Sled push | 3:16 | 1:43 |
| Run 3 | 3:56 | 4:07 |
| Sled pull | 4:35 | 3:35 |
| Run 4 | 3:52 | 4:05 |
| Burpee broad jump | 3:16 | 3:51 |
| Run 5 | 3:59 | — |
| Row | 4:46 | 4:28 |
| Run 6 | 4:01 | 4:10 |
| Farmers carry | 2:02 | 1:38 |
| Run 7 | 3:55 | 4:01 |
| Sandbag lunges | 3:18 | 2:40 |
| Run 8 | 4:18 | 4:03 |
| Wall balls | 5:10 | 3:09 |
| Roxzone | 4:33 | 4:42 |
| Finish | 1:06:00 | 1:05:16 |
Head to head: 5 races they both ran
| Race | Iza | Marianne | Gap |
|---|---|---|---|
| Maastricht 2026 Pro Women · 17 Sep 2026 | 1:07:04 | 1:08:15 | 1:11 · Iza faster |
| Rotterdam 2026 Pro Doubles Women · 15 Apr 2026 | 57:56 | 1:12:17 | 14:21 · Iza faster |
| Amsterdam 2026 Pro Women · 21 Jan 2026 | 1:06:00 | 1:10:12 | 4:12 · Iza faster |
| Utrecht 2025 Pro Women · 28 Nov 2025 | 1:14:06 | 1:09:45 | 4:21 · Marianne faster |
| Maastricht 2025 Open Women · 1 Feb 2025 | 1:09:35 | 1:05:16 | 4:19 · Marianne faster |
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