TDS® 2026: Rémy Brassac victory, Team Cimalp athlete

Update 26 August 2026: final figures and rankings, with the race now concluded.

Rémy Brassac won the 2026 TDS® this Tuesday, 25 August in Chamonix, finishing in 19 hours, 28 minutes, and 43 seconds. Running for Team Cimalp, the Lozère-based athlete dominated one of the most technical events of the HOKA UTMB Mont-White® week after battling cold rain throughout the night. It was also the longest race of his career.

Rémy takes control across the Beaufortain

Starting from Courmayeur at 23:50 on Monday night, three French runners broke away early: Clovis Chaverot, Louison Coiffet, and Rémy. They crossed the opening passes together in the pitch dark under freezing rain.

Louison Coiffet, the field's highest-ranked runner by UTMB Index and winner of the Mont-White 90K in June, took the early lead before fading. His withdrawal was recorded in Bourg-Saint-Maurice, around kilometre 51. Clovis Chaverot then led the race for nearly a hundred kilometres, holding a thirteen-minute lead over Rémy through Beaufort.

Rémy turned the race around during the Beaufortain crossing. On the most technical and remote section of the course, he caught Chaverot, passed him, and took a lead he would never surrender. Around kilometre 115, he led the field with a twenty-four-minute margin over Pierre-Adrien Hivert. Chaverot dropped to third and pulled out shortly after.

Over the final thirty kilometres, Rémy steadily extended his lead all the way to Chamonix. Of the three early leaders, he was the only one to cross the finish line.

Men's podium

A decisive 45-minute and 43-second lead over second place, and nearly an hour and a half over third. Pierre-Adrien Hivert marked significant progress after finishing ninth in the same event last year.

The final standings differ from the provisional rankings during the race: Italy's Davide Rivero, running third at one point, appears in sixth place in the official results in 21:27:43.

Women's podium

Sarah Vieuille led from start to finish in her first race in Chamonix, following a fourth-place finish at the 2025 Diagonale des Fous. Her lead peaked at thirty-nine minutes in Beaufort before narrowing over the final kilometres.

Cold rain, fog, and 0°C at mountain passes

The first night was run in cold rain and thick fog, with temperatures hovering near 0°C at mountain passes, as race officials had warned on the eve of the start. The Beaufortain trails, already technical in dry conditions, became heavy and slick.

The final tally speaks for itself. Out of 1,290 starters, the 2026 TDS® recorded 715 finishers and 575 dropouts—a DNF rate of nearly 45%. Almost one in two runners failed to reach Chamonix.

In conditions like these, breaking the twenty-hour barrier is no small feat. The course record, set by Thibault Marquet in 2024, stands at 18:59:36.

Who is Rémy Brassac?

Rémy had little involvement in sports growing up. He took up running and trail in 2015, initially to lose weight. Ten kilos lighter, an encouraging debut in competition led him to structure his training. Today, he works as a trail and road cycling coach, running his own coaching business. Born on 2 November 1987 in Marvejols (Lozère), he runs for the Marvejols Cross Marathon club.

A fast runner before stepping into ultra-trail

His top results first came across shorter, faster formats:

• 7th at the European Off-Road Running Championships in June 2026, over the 52 km distance
• 6th at the French Long-Distance Trail Championships in March 2026, at Trail du Ventoux
• 2024 French M0 long-distance trail champion, finishing 8th overall
• 1:24:00 on the Marvejols-Mende half marathon

100K winner ten months ago

His first victories came over 40 to 60-kilometre formats before stepping up to elite ultra distances over the last two seasons:

• Winner of the 2025 Endurance Trail des Templiers 100 km in 9:37:30, following a 3rd-place finish in 2024
• 4th at Val d'Aran by UTMB® 110K in July 2026, in 12:32:31
• 14th at CCC® in 2023 (3rd French runner), after finishing 37th in 2022
• 4th at MCC® in 2021, which he considers his finest memory in the mountains
• 2nd at Ultra Lozère 110 km in 2021, winner of Grand Trail du Sancy 2023, 3rd at 6000D 2023, winner of Trail Saint-Jacques by UTMB® 50K in 2024, and winner of Trans Aubrac 75 km in 2025

Before Tuesday, the longest race in his official record was a 110 km. At 148 kilometres and 9,300 metres of elevation gain, the TDS® was his longest race to date—and he won it by forty-five minutes.

It was among the targets listed on his athlete page, alongside Val d'Aran and VVX 110K.

The TDS®, the week's most technical race

The TDS® sits in the shadow of the UTMB® and CCC®, yet it is widely considered the most technically demanding race of the Chamonix week. The two highest-ranked men at the start, Louison Coiffet and Clovis Chaverot, both dropped out.

Planning to toe the start line? Find full details on the route, stats, and entry requirements in our complete guide: the UTMB® TDS®: route, distance, and elevation gain.

Frequently asked questions

Who won the 2026 TDS®?

Rémy Brassac in the men's race (19:28:43) and Sarah Vieuille in the women's race (22:08:16).

How many runners finished the 2026 TDS®?

715 finishers out of 1,290 starters, with 575 drops, representing a DNF rate of nearly 45%.

What is the distance of the TDS®?

148 km with 9,300 metres of positive elevation gain for the 2026 edition between Courmayeur (Italy) and Chamonix (France), with a cut-off time of 44 hours and 55 minutes. The finish line was measured at 150.5 km on the official tracking.

Why did so many favourites drop out?

A combination of highly technical terrain, cold rain throughout the first night, and near-freezing temperatures on high passes. Of the three men who led the race over the first fifty kilometres, only the winner reached the finish line.

Find out more

• TDS®: route, distance, and elevation gain
• Rémy Brassac's athlete page
• UTMB®: the race and the 2026 distances
• Registered runners and elite field for UTMB® 2026

Photo credits: Cordada Outdoor.