Embrunman: Course, Elevation & Route Profile

Course & Elevation

The gun goes at six in the morning in the lake at Embrun: 3.8 kilometres over two laps, in water that stays cool in the Hautes-Alpes even in mid-August. Transition sits at about 780 metres of altitude, so the start line alone is higher than most long-distance finish lines.

The bike leg is the race. Four hundred metres in, the first climb begins: 5.25 kilometres averaging seven percent with ramps to 17.6, 370 metres of gain before your legs are even warm. A long sequence of ups and downs follows to kilometre 84, and then the Izoard: nearly two kilometres of approach, then 6.7 kilometres at 8.2 percent with a pitch over 24 percent, then further ramps to the summit at 2,360 metres around kilometre 95. After the long descent two serious climbs remain, a two-kilometre wall at 8.7 percent at kilometre 140 and, from kilometre 174, a closing 4.5 kilometres at 6.5 percent. The total: 184 kilometres, 4,591 metres of ascent, only a fifth of it flat.

The closing marathon is three identical 14-kilometre laps, each with a 1.9-kilometre climb at 4.3 percent, 416 metres of gain in all. On its own it is a rolling course; after that bike leg it becomes the real examination. Cut-offs fall at 08:10, 17:15 and 23:15, and the prize-giving is not until the following morning. 2026 was the 42nd edition – a race the organiser may only stage with several hundred marshal posts demanded by the Préfecture, and for which it ran a public appeal for volunteers.

Pacing Strategy

The Embrunman forgives no early mistake, because the first opportunity to make one arrives 400 metres into the bike. That opening climb hits you with cold legs and a heart rate still high from the swim. Ride it well below what is possible and accept being passed by dozens: of the 4,591 metres of climbing, more than 4,200 are still ahead of you at that point.

The race-deciding section is the Izoard between kilometre 84 and 99. Nearly 15 kilometres of near-continuous climbing with individual ramps beyond 20 percent, above 2,000 metres where your power drops anyway. Ride above your long-distance wattage here and you lose the marathon, not the bike split. Fit a low gear, eat deliberately at the summit, and dress before the long descent – it is cold up there even in August.

The classic trap is the closing climb from kilometre 174. After 170-plus kilometres many riders decide the bike is done and take those last 4.5 kilometres at 6.5 percent too hard. Those twenty minutes decide whether your first run lap is running or walking. On the marathon itself: even effort across three identical laps, the 1.9-kilometre climb of each lap ridden conservatively from the first one, and fuelling by the clock rather than by feel – many athletes cover the closing kilometres in the dark.

Training plan for Embrunman: 12-week build

Expect ten to fifteen hours of racing; the final cut-off is 23:15. The demand is unusual for a long-distance triathlon: instead of six or seven hours of even aerobic riding, the Embrunman asks for long climbs in the upper endurance band, broken by technical descents and short ramps that keep pushing you over threshold.

The training emphasis is unambiguously climbing endurance on the bike. Long rides of five to seven hours with 2,000 to 3,000 metres of ascent are the core session, ideally including one climb of over an hour unbroken, because that is exactly what the Izoard is. Test your gearing on a twenty-percent ramp, not on a six-percent local hill. Ride technical descents deliberately too: the Izoard drops almost 600 metres in one run, and time is won there by the rider who eats and drinks instead of braking.

The race-deciding phase to rehearse is the brick run measured in climbing, not kilometres. Follow at least three long rides with real vertical by a 45 to 75 minute run that itself contains a climb. That models the three marathon laps far better than any flat brick.

On conditions: Embrun sits at around 780 metres, the pass at 2,360, and the race is held in mid-August. That means heat in the valley, cold on the descent and several hours at altitude – plan a gilet and arm warmers in and rehearse them in training. The six o'clock swim start happens in darkness, and so does the finish for many athletes: practise open-water swimming at dawn and running with a head torch at least once.