USA Jack Koscho
5 HYROX races over 2 seasons, all in a team with 3 partners.
One best per race type
Doubles Men: finish time, race by race
Oldest to newest; a line going down means getting fasterEach dot is one Doubles Men race. Not enough complete, clean Doubles Men races yet to measure the change. Team times are shared with a partner, so they move with who you race with.
5 results
| Race | Division | Time | Place | Runs | Stations | Roxzone | Report | |
|---|---|---|---|---|---|---|---|---|
| New York 2026 28 May 2026team: Sam Koscho, Jack Koschowhole field → | Doubles Men · team 25-29 | 1:01:12 | 60th of 3,15120th of 770 aged 25-29 | 34:46 | 22:03 | 4:27 | View results | See splits Hide splitsSkiErg3:43fastest 6%Sled push1:37fastest 11%Sled pull2:21fastest 4%Burpee broad jump2:26fastest 13%Row4:06fastest 7%Farmers carry1:32fastest 12%Sandbag lunges2:41fastest 5%Wall balls3:37fastest 3%Runs (8 km)34:46fastest 3%Roxzone4:27fastest 8%Run 14:25fastest 6%Run 23:55fastest 3%Run 34:09fastest 3%Run 44:05fastest 2%Run 54:13fastest 2%Run 64:19fastest 4%Run 74:19fastest 3%Run 85:24fastest 5%Full report for this race → |
| New York 2026 28 May 2026team: Jack Koscho, Grace DeJongwhole field → | Doubles Mixed · team 16-24 | 1:05:11 | 154th of 4,84714th of 491 aged 16-24 | 36:54 | 24:01 | 4:21 | View results | See splits Hide splitsSkiErg3:45fastest 1%Sled push1:51fastest 11%Sled pull2:49fastest 5%Burpee broad jump2:45fastest 15%Row4:23fastest 12%Farmers carry1:40fastest 13%Sandbag lunges2:52fastest 5%Wall balls3:56fastest 13%Runs (8 km)36:54fastest 5%Roxzone4:21fastest 6%Run 14:31fastest 5%Run 24:01fastest 3%Run 34:35fastest 7%Run 44:36fastest 7%Run 54:33fastest 5%Run 64:33fastest 6%Run 74:34fastest 5%Run 85:35fastest 5%Full report for this race → |
| Chicago 2025 14 Nov 2025team: Jack Koscho, Sam Koschowhole field → | Doubles Men · team 25-29 | 1:02:36 | 43rd of 90615th of 220 aged 25-29 | 35:47 | 22:31 | 4:23 | View results | See splits Hide splitsSkiErg3:50fastest 31%Sled push1:26fastest 46%Sled pull2:25fastest 9%Burpee broad jump2:38fastest 21%Row4:14fastest 22%Farmers carry1:38fastest 41%Sandbag lunges2:46fastest 15%Wall balls3:34fastest 6%Runs (8 km)35:47fastest 5%Roxzone4:23fastest 6%Run 13:08fastest 5%Run 24:06fastest 2%Run 34:33fastest 5%Run 44:35fastest 5%Run 54:54fastest 9%Run 64:45fastest 8%Run 74:48fastest 9%Run 85:02fastest 6%Full report for this race → |
| New York 2025 30 May 2025team: Jack Koscho, Sam Koschowhole field → | Doubles Men · team U29 | 1:00:50 | 44th of 1,07821st of 320 aged U29 | 35:44 | 21:14 | 3:52† | View results | See splits Hide splitsSkiErg3:41fastest 5%Sled push1:34fastest 26%Sled pull2:05fastest 8%Burpee broad jump2:09fastest 10%Row4:05fastest 10%Farmers carry1:31fastest 16%Sandbag lunges2:35fastest 8%Wall balls3:34fastest 4%Runs (8 km)35:44fastest 7%Roxzone3:52Run 14:12fastest 4%Run 24:00fastest 4%Run 34:17fastest 7%Run 44:16fastest 5%Run 54:28fastest 8%Run 64:25fastest 8%Run 74:29fastest 10%Run 85:37fastest 8%Full report for this race → |
| Houston 2025 15 Mar 2025team: Eric Martin, Jack Koschowhole field → | Doubles Men · team U29 | 1:12:53 | 168th of 73167th of 222 aged U29 | 44:06 | 22:47 | 6:03 | View results | See splits Hide splitsSkiErg3:57fastest 35%Sled push1:27fastest 20%Sled pull2:07fastest 2%Burpee broad jump3:10fastest 41%Row4:03fastest 5%Farmers carry1:35fastest 30%Sandbag lunges3:06fastest 23%Wall balls3:22fastest 4%Runs (8 km)44:06fastest 36%Roxzone6:03fastest 22%Run 15:24faster than 43%Run 25:15fastest 44%Run 35:31fastest 39%Run 45:24fastest 33%Run 55:39fastest 34%Run 65:38fastest 38%Run 75:39fastest 38%Run 85:39fastest 34%Full report for this race → |
How to read
Place is the position among timed finishers in the same race, division and gender; a doubles place is the team's. Runs is the organiser's official run total (it can differ from the eight laps added up by a few seconds), stations the eight stations added up, and roxzone the time moving between them. † This venue did not time the roxzone: the figure is the finish minus runs and stations, and part of the walk is inside the run laps there, so it is shorter than at other venues. The age group is the one entered for that race; for a team it is the team’s age group. How the numbers are made.
The fastest Jack has done each station
| Part | Best | Race | Typical |
|---|---|---|---|
| SkiErg | 3:41 | New York 2025 · best of 4 | 4:04 |
| Sled push | 1:26 | Chicago 2025 · best of 4 | 1:50 |
| Sled pull | 2:05 | New York 2025 · best of 4 | 3:20 |
| Burpee broad jump | 2:09 | New York 2025 · best of 4 | 3:13 |
| Row | 4:03 | Houston 2025 · best of 4 | 4:32 |
| Farmers carry | 1:31 | New York 2025 · best of 4 | 1:40 |
| Sandbag lunges | 2:35 | New York 2025 · best of 4 | 3:35 |
| Wall balls | 3:22 | Houston 2025 · best of 4 | 4:23 |
| Runs (8 km) | 34:46 | New York 2026 · best of 4 | 42:19 |
| Roxzone | 4:23 | Chicago 2025 · best of 3 | 6:48 |
How to read
Each station's best across Jack's Doubles Men races, from different races, against the typical Doubles Men split. Venues differ (sled carpets, run laps, where the mats sit), so a best can owe something to the venue.
3 team partners
- Sam Koscho3 races
- Eric Martin1 race
- Grace DeJong1 race
From the team results above. A name opens the search: a partner can have more than one page.
New York 2025, against 1,078 Doubles Men
Shape of the race
Further out means you beat more of the field on that part. A dent is a weak spot.
How you ranked on each station
Longer is better: the share of the field you beat.
Minutes against the typical finisher
Green, left of centre: faster than the typical Doubles Men finisher at this race. Orange, right: slower, and by how much.
The race as one bar: Jack against the typical Doubles Men finisher
The race in order, left to right. A wider block than the one below is slower than typical.
Training for the next one? Let's beat 1:00:50.
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
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Free to download. Used by more than 40,000 HYROX athletes.
