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