Jack vs Tjon
USA · Open Men · 10 results Jack Sullivan
USA · Open Men · 8 results Tjon Belchenko
Station radar · best race with a field of 30 or more
Jack: Boston 2026, Open Men · Tjon: tampa Tamp, Open Men
This chart shows where Jack and Tjon sat in the field on each part of the race: the edge is faster than everyone, the centre is the slowest.Jack: strongest on Lunges (faster than 99% of the field), weakest on Push (faster than 85%).Tjon: strongest on Roxzone (faster than 99% of the field), weakest on Ski (faster than 95%).
See the numbers
| Part | Jack: faster than | Tjon: faster than |
|---|---|---|
| Ski | 92% | 95% |
| Push | 85% | 99% |
| Pull | 94% | 99% |
| BBJ | 99% | 99% |
| Row | 96% | 98% |
| Carry | 92% | 99% |
| Lunges | 99% | 97% |
| Wall balls | 94% | 99% |
| Roxzone | 98% | 99% |
| Runs | 99% | 99% |
Each athlete against their own field at their own best race (division, gender, that venue). Further out is faster.
Part by part
| Part | Jack | Tjon |
|---|---|---|
| SkiErg | 92% | 95% |
| Sled push | 85% | 99% |
| Sled pull | 94% | 99% |
| Burpee broad jump | 99% | 99% |
| Row | 96% | 98% |
| Farmers carry | 92% | 99% |
| Sandbag lunges | 99% | 97% |
| Wall balls | 94% | 99% |
| Roxzone (moving) | 98% | 99% |
| Runs (8 km) | 99% | 99% |
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.Jack · Boston 2026 · Open Men: 31:07 running, 27:26 at the stations and 4:07 in the roxzone; the longest station was the wall balls (4:34).Below, Tjon · tampa Tamp · Open Men: 31:06 running, 25:07 at the stations and 4:24 in the roxzone; the longest station was the row (4:18).
See the numbers
| Part | Jack · Boston 2026 · Open Men | Tjon · tampa Tamp · Open Men |
|---|---|---|
| Run 1 | 3:03 | 3:34 |
| SkiErg | 4:14 | 4:11 |
| Run 2 | 3:43 | 3:39 |
| Sled push | 2:57 | 1:54 |
| Run 3 | 3:52 | 3:59 |
| Sled pull | 3:48 | 3:05 |
| Run 4 | 3:53 | 3:56 |
| Burpee broad jump | 2:59 | 3:02 |
| Run 5 | 4:01 | 4:04 |
| Row | 4:23 | 4:18 |
| Run 6 | 4:02 | 3:56 |
| Farmers carry | 1:42 | 1:28 |
| Run 7 | 4:04 | 3:57 |
| Sandbag lunges | 2:49 | 3:08 |
| Run 8 | 4:29 | 4:01 |
| Wall balls | 4:34 | 4:01 |
| Roxzone | 4:07 | 4:24 |
| Finish | 1:02:34 | 1:00:28 |
Head to head: 1 race they both ran
| Race | Jack | Tjon | Gap |
|---|---|---|---|
| Boston 2026 Open Men · 8 Oct 2026 | 1:02:34 | 1:01:58 | 0:36 · Tjon 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.
