16–19 September 2026
4 ULTRAMARATHONS
IN 4 DAYS.
Nearly 200 km of trails. Over 9,000 m of ascent. Thirteen summits across four gruelling days in the Serre Chevalier mountains.
Explore the challenge186km planned
9,000m ascent
13summits
4days
The route
FOUR DAYS.
NO EASY ONE.
Select a day to isolate its stage, then choose any summit to reveal its altitude. Together, the four routes add up to 186 km and 9,000 m of climbing.
Founder · Athlete · Grandad
The person behind the challenge
I AM
FFFHEALTH.
FFFHealth has always been personal. Felix built the brand around a simple idea: the plan has to be lived, tested and evolved in the real world. Thirteen Peaks is that philosophy taken into the high Alps.
Felix DavisFounder, FFFHealth
The scale of it
ONE CHALLENGE.
FOUR FINISH LINES.
Distance186 km4.4 × a marathon
Vertical gain9,000 m+More than Everest from sea level
Highest point2,869 mLe Grand Aréa
Daily average46.5 km2,250 m climbing
Thirteen summits. Four consecutive ultramarathons. One uncompromising test of endurance in the mountains above home.
Enquiries · Training · FFFPlansLET’S TALK.
DM me on Instagram @felixfffdavis ↗