JackChamberlain
About
English legs, Austrian mountains
I am an English trail and ultra runner living in Söll, in the Wilder Kaiser region of Tirol. I came out for one winter season in 2010 and never really left.
I race long: 100k to 100 miles, mostly in the Alps. I won the Mozart 100 in 2024 and finished 25th at UTMB Mont-Blanc the same year, on a week where I had been ill and had not run for seven days. Thirty-two ultra finishes in, I still think the best ones are ahead.
I coach for Centurion Running, working with runners going after their first 50k and runners going after a hundred-mile buckle. I also built Intake, a race-specific fuelling and pacing planner, because generic hourly targets fall apart on real terrain.
Away from the trails I am a guitarist and singer, playing weddings, bars and festivals across Tirol, and I translate German into English for people who need the tone to survive the crossing.
Racing
Race log
The last three seasons, most recent first. Times are official finishing times.
| Year | Race | Time | Place |
|---|---|---|---|
| 2026 | HOKA UTMB Mont-Blanc 174 km, 9,900 m | 23:20:59 | 55th |
| 2026 | Grossglockner Ultra Trail 57 km | 06:45:41 | 3rd |
| 2026 | Dolomiti Extreme Trail 55 km | 07:06:41 | 5th |
| 2026 | Chianti Ultra Trail 119 km | 12:42:39 | 21st |
| 2025 | Festival des Templiers 100 km | 10:09:32 | 5th |
| 2025 | Mozart 100 120 km | 12:25:26 | 5th |
| 2025 | Arc of Attrition 80 km | 07:43:29 | 4th |
| 2024 | HOKA UTMB Mont-Blanc 173 km, 9,900 m | 23:40:28 | 25th |
| 2024 | Mozart 100 105 km | 11:19:37 | 1st |
Full history and index: UTMB World profile. Team: Fuga Mountain Club.
Specificity is absolutely key. You have to train the race you are actually going to run. After Chianti 120k, 2026
Coaching
Coaching for the long ones
I coach through Centurion Running: one to one, built around your race, your terrain and the hours you actually have.
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Train the race you entered
Climbing, descending and the durability that comes with them are specific. A winter of flat, fast work gives you leg speed, not legs that survive 9,000 metres of descent. We build the plan around the course, not around a template.
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Raise your volume without being an idiot
Your body does not know percentages. Five or ten minutes on the end of a run is not a risk. Piling on a session you have not earned is. Progression is a judgement call, made week by week, not a rule from a book.
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Fuelling is trained, not guessed
Carbohydrate per hour, sodium, caffeine and what your stomach will still take at hour eleven. All of it is practised in training, so that race day is a rehearsal rather than an experiment.
Also
Three other things I do
Founder
Intake
Race-specific fuelling and pacing for ultra runners. Intake starts with a named race, models your splits against the real terrain, then builds the plan around them, down to what goes in your bottles at each aid station.
planyourintake.com →
in the Alps
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 the way we want to play it.
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. The tone survives the crossing.
chamberlaintranslation.com →
Partners
Who I run with
Kit and support I use in training and on race day.
Contact
Get in touch
For coaching, start with Centurion. For brand work, race invitations and media, my agency handles the first conversation. For anything else, Instagram is the fastest way to reach me.