Nice Côte d'Azur by UTMB: Course, Elevation & Route Profile

Course & Elevation

The gun goes on Friday at 13:00 in Auron, in the Mercantour, at 1,593 metres. Eight kilometres in, the hardest climb of the race begins: 6.3 kilometres averaging almost 21 percent for 1,306 metres of gain, hors catégorie, topping out at the course high point of 2,624 metres by kilometre 30. The course then sheds around 1,900 metres by kilometre 46.

What follows never settles: 3.2 kilometres at 13 percent from kilometre 52, 4.6 at 12 percent from kilometre 62, 4.9 at 13 percent from kilometre 73, and from kilometre 85 a second hors catégorie climb of 4.7 kilometres at 18 percent for 838 metres. A third HC climb waits from kilometre 120: 5.2 kilometres at 17 percent for 889 metres. Only after the final climb from kilometre 147 does the course tip decisively towards the sea, with close to 2,760 metres of climbing still remaining beyond the last categorised ascent.

The route leaves the high Mercantour by way of Venanson and the Baisse de la Combe and ends in the centre of Nice. Net, the course loses 1,581 metres – but the descents are the real problem: it falls almost 2,000 metres more than it climbs, and over thirty percent of the distance is steep downhill. The cut-off is 50 hours, the race is part of the UTMB World Series, and 2026 is its fifth edition.

Pacing Strategy

The first climb at kilometre 8 is the steepest ramp of the race and arrives before anything else has happened. 1,306 metres at an average of 21 percent is a walk for everyone but the fastest – walk it, with poles, at a rate you could still describe after forty hours. Run it and your race is over by kilometre 30.

The race is decided on the three HC and category-1 climbs in the second half: kilometre 85 at 18 percent, kilometre 120 at 17 percent and the last long drag from kilometre 147. They fall in the night or on the second day, and they decide finishing versus stopping rather than time. Plan fuelling, lighting and your sleep strategy explicitly around those three points.

The real trap, though, is the descending. Over 10,000 metres of descent, 31 percent of the distance in steep downhill, wrecks quadriceps long before endurance fails. Brake more in the first half than feels necessary: the price of a fast descent at kilometre 40 falls due at kilometre 130, when every downhill step hurts and the route to the sea is nothing but downhill.

Training plan for Nice Côte d'Azur by UTMB: 12-week build

Expect 25 to 50 hours; the cut-off is 50. The demand is a multi-day mountain ultra with a strongly eccentric bias: eight categorised climbs, over 10,000 metres of descent, and effectively no flat section on which running recovers from the terrain.

The most important training content is downhill strength. The course loses 1,581 metres more than it gains, with steep descent on almost a third of the distance – an eccentric load you only tolerate by training for it. Build long descents in deliberately over months, short and controlled at first, later 1,000 to 2,000 metres of descending in one session, and always after several hours of prior load.

Alongside that you need efficient uphill walking. Gradients averaging over 21 percent, as on the opening climb, are walked and not run: practise fast walking with poles for 45 to 90 minutes unbroken, carrying a pack, until it is more efficient than running. Add night running with a head torch and at least one session over 12 hours to test fuelling, clothing and your head.

On conditions: the start sits at 1,593 metres in late September, the high point at 2,624 and the finish at sea level. That means cold and possible wet in the Mercantour, one or two nights out, and Mediterranean warmth over the closing kilometres. Plan a clothing system that covers both ends, and rehearse the full mandatory kit on a long mountain session.