JackChamberlain
About
How I ended up here
I am an English trail and ultra runner, and a running coach, living in Söll in the Wilder Kaiser region of Tirol. I came out for one winter season in 2010 and never really left.
Most of my racing is 100k to 100 miles in the Alps. I won the Mozart 100 in 2024 and finished 25th at UTMB Mont-Blanc later the same year. Thirty-two ultra finishes so far.
I coach for Centurion Running. Some of my athletes are chasing a first 50k, some a hundred-mile buckle, some a new half marathon PB on the road. I also built INTAKE, a fuelling and pacing planner, because generic hourly targets fall apart once the terrain gets real.
Racing
Race log
Best results first. Times are official finishing times.
| Year | Race | Time | Place |
|---|---|---|---|
| 2026 | Tour de Tirol, Kaisermarathon Ultra 77 km, 3,492 m | 07:13:30 | 1st |
| 2024 | Mozart 100 by UTMB 105 km | 11:19:37 | 1st |
| 2021 | Tour de Tirol, Hohe Salve Ultra Trail 76 km, 4,330 m | 08:20:43 | 1st |
| 2023 | Isle of Wight Challenge 106 km | 10:46:26 | 2nd |
| 2024 | Salven Trail Marathon 42 km, Tiroler Meisterschaft | 03:44:31 | 2nd |
| 2023 | Mozart 100 by UTMB 105 km | 11:35:55 | 3rd |
| 2026 | Grossglockner Ultra Trail 57 km | 06:45:41 | 3rd |
| 2025 | Arc of Attrition 80 km | 07:43:29 | 4th |
| 2023 | KAT100 by UTMB 160 km, first 100 miler | 23:13:01 | 5th |
| 2025 | Festival des Templiers 100 km | 10:09:32 | 5th |
| 2025 | Mozart 100 by UTMB 120 km | 12:25:26 | 5th |
| 2026 | Dolomiti Extreme Trail 55 km | 07:06:41 | 5th |
| 2026 | Chianti Ultra Trail 119 km | 12:42:39 | 21st |
| 2024 | HOKA UTMB Mont-Blanc 173 km, 9,900 m | 23:40:28 | 25th |
| 2026 | HOKA UTMB Mont-Blanc 174 km, 9,900 m | 23:20:59 | 55th |
Full history: UTMB World, ITRA, Strava. Team: Fuga Mountain Club.
Media
Press and podcasts
Race coverage in English and German, three fuelling case studies with Precision Fuel & Hydration, and a few podcasts I have been on.
Podcasts
Laufend Entdecken #385: Tour de Tirol DE → That's Runnable #49: Family, ultra training and life in the Austrian mountains → Young Hearts Run Free Jack Chamberlain takes us into the Alps, season 14 → Feet First #12: Arc of Attrition debrief → Centurion Coaching New Centurion coach Jack Chamberlain →
Specificity is absolutely key. You have to train the race you are actually going to run.
Coaching
How I coach
I am a running coach with Centurion Running, working one to one from half marathon PBs up to hundred milers. Trail, mountain and ultra are what I know best.
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The long game
I want to know what is on your calendar this season, what you are thinking about for next year, and what your bucket list races are. Knowing where you want to end up changes how I build the next few months. We will work out the calendar together, pick the races that actually matter, and build the year around those.
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The plan is the small part
I write your week in Final Surge and I write it one week at a time, because the plan has to answer what actually happened in the last seven days. What makes the difference is the relationship, and the communication that comes out of it. Some of my athletes message me nearly every day, some once a week. Tell me when something hurts, when work goes mad, when a session felt harder than it should have. Tell me when it feels good too, because that tells me just as much.
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Fuelling gets the same attention as the training
This is the part of racing I have got good at. I plan my own fuel and hydration carefully, train my stomach to handle it, and then execute it on the day. I hold my athletes to the same standard, because a good block of training can still come apart in the last three hours of a race over something you could have practised. It is the reason I built INTAKE.
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No two athletes get the same coach
Some people need pushing. Some are a little over enthusiastic and need reining in to keep the training sustainable. Some need their confidence boosting. I learned to spot the difference teaching skiing, where you get an hour with a stranger and have to work it out before the lesson ends. Circumstances are just as varied. Some people have more time than others. Some live in the mountains, some live in a city and still want to race mountain ultras. Whatever your situation, we work with what you have got and make the best of it.
One athlete took a big chunk off his half marathon PB. Another went from his first 50k to his first 50 miler on the same course, and a year later was quicker over one section of it in the longer race. That came down to his own hard work and dedication to the training.
Included with coaching
- INTAKE, free. The race planner I built, at no cost for as long as I coach you.
- A Precision Fuel & Hydration discount code. The fuel I use in my own races.
Coached by Centurion but not by me? You still get 20% off INTAKE. Message me for the code.
Winter
Landeslehrer
I teach skiing in the Wilder Kaiser, and I was doing that long before I started running.
I am a Landeslehrer, the Austrian state ski instructor qualification, trained through the Tiroler Skilehrerverband. I have taught for years in the Wilder Kaiser, from children on their first morning to advanced adults who want to clean up their turns.
I also took the weekly training sessions for the other instructors at the ski school. These days I ski in commercial photo and video shoots, including for the Wilder Kaiser region.
Teaching skiing is where I learned to read people quickly. You get an hour with a stranger and you have to work out what they respond to before the lesson is over. It is the same thing I do with the runners I coach, only with more time to get it right.
Also
Jack of all trades
Founder
INTAKE
Race-specific fuelling and pacing for ultra runners. You pick your race, INTAKE models your splits against the real terrain and builds the plan around them, down to what goes in your bottles at each aid station.
planyourintake.com →
Web design
Chamberlain Web
Simple, fast websites for small businesses in Tirol and beyond, built to be found. Design, build, hosting and the search work that makes a site actually bring enquiries in.
chamberlainweb.at →
Guitar and vocals
Jack Chamberlain Music
Weddings, bars, hotels and open airs across Tirol and beyond. Solo, as the duo Jazzy & Jack, or with the full band Fat Jack Slam. An English singer in the Alps, playing rock, soul, funk and country, rarely straight off the record.
jackchamberlainmusic.com →
Translation
Chamberlain Translation
German into English, by a native English speaker who has lived and worked in Austria for over ten years. Books and articles, marketing and business copy, academic and technical documents.
chamberlaintranslation.com →
Sponsors
Sponsors
Kit and support I use in training and on race day.
Photos
On the trail
Writing
Latest
Ben Dhiman is advertising for a coach
The fastest UTMB winner ever is hiring a coach by open advert. Why that is smarter than it looks, and what I think he is really shopping for.
1 October 2026You're training to be able to train more
A mate asked how often an athlete trains for a race and doesn't make it. The question threw me, and then it explained something about how most people get this wrong.
Contact
Get in touch
Coaching enquiries go through Centurion. Brand work, race invitations and media go to my agency first. For anything else, Instagram is the quickest way to get hold of me.