Chelsea vs Brenna
USA · Open Women · 4 results Chelsea Chase
USA · Open Women · 2 results Brenna Pierson
Station radar · best race with a field of 30 or more
Chelsea: Boston 2026, Open Women · Brenna: Boston 2026, Open Women
This chart shows where Chelsea and Brenna sat in the field on each part of the race: the edge is faster than everyone, the centre is the slowest.Chelsea: strongest on BBJ (faster than 93% of the field), weakest on Ski (faster than 50%).Brenna: strongest on Push (faster than 99% of the field), weakest on Runs (faster than 46%).
See the numbers
| Part | Chelsea: faster than | Brenna: faster than |
|---|---|---|
| Ski | 50% | 83% |
| Push | 59% | 99% |
| Pull | 66% | 74% |
| BBJ | 93% | 83% |
| Row | 72% | 98% |
| Carry | 83% | 89% |
| Lunges | 89% | 94% |
| Wall balls | 68% | 99% |
| Roxzone | 81% | 74% |
| Runs | 65% | 46% |
Each athlete against their own field at their own best race (division, gender, that venue). Further out is faster.
Part by part
| Part | Chelsea | Brenna |
|---|---|---|
| SkiErg | 50% | 83% |
| Sled push | 59% | 99% |
| Sled pull | 66% | 74% |
| Burpee broad jump | 93% | 83% |
| Row | 72% | 98% |
| Farmers carry | 83% | 89% |
| Sandbag lunges | 89% | 94% |
| Wall balls | 68% | 99% |
| Roxzone (moving) | 81% | 74% |
| Runs (8 km) | 65% | 46% |
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.Chelsea · Boston 2026 · Open Women: 45:46 running, 36:11 at the stations and 6:00 in the roxzone; the longest station was the wall balls (5:50).Below, Brenna · Boston 2026 · Open Women: 49:35 running, 31:58 at the stations and 6:21 in the roxzone; the longest station was the burpee broad jumps (5:26).
See the numbers
| Part | Chelsea · Boston 2026 · Open Women | Brenna · Boston 2026 · Open Women |
|---|---|---|
| Run 1 | 6:31 | 5:11 |
| SkiErg | 5:21 | 4:59 |
| Run 2 | 5:17 | 6:10 |
| Sled push | 3:18 | 2:05 |
| Run 3 | 5:27 | 6:32 |
| Sled pull | 5:31 | 5:15 |
| Run 4 | 5:37 | 6:20 |
| Burpee broad jump | 4:44 | 5:26 |
| Run 5 | 5:40 | 6:35 |
| Row | 5:21 | 4:49 |
| Run 6 | 5:21 | 6:09 |
| Farmers carry | 2:02 | 1:57 |
| Run 7 | 5:29 | 6:01 |
| Sandbag lunges | 4:04 | 3:45 |
| Run 8 | 6:24 | 6:38 |
| Wall balls | 5:50 | 3:42 |
| Roxzone | 6:00 | 6:21 |
| Finish | 1:27:48 | 1:27:49 |
Head to head: 1 race they both ran
| Race | Chelsea | Brenna | Gap |
|---|---|---|---|
| Boston 2026 Open Women · 8 Oct 2026 | 1:27:48 | 1:27:49 | 0:01 · Chelsea faster |
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.
