Held across 18–19 July 2026, the Défi du Col du Portet turns Saint-Lary-Soulan into a true “road-in-the-mountains” festival built around three distances: the 10 km, the 21.1 km semi-marathon, and the 42.195 km marathon. The semi is a relentless uphill test from the valley to the summit of the Col du Portet, while the marathon goes Saint-Lary → Col du Portet → Saint-Lary, combining a sustained climb with a long, technical-feeling descent at speed. Underfoot it’s 100% tarmac, but the terrain is unmistakably alpine: hairpin climbs, thin-air altitude near the top, and big Pyrenees panoramas that reward the effort. A 2-person marathon relay also runs on the same marathon course, adding a team option to the weekend’s main event.
Races
Race Date:
18 July, 2026
The Sprint de l’Adet runs on Saturday 18 July 2026 (19:00) in Saint-Lary-Soulan, organised by Sports Natures des Pyrénées and T2S, a thrilling downhill-only road race from the Pla d’Adet area back into town that rewards fast legs and brave pacing.
Race Date:
19 July, 2026
The Semi du Portet takes place on Sunday 19 July 2026 (08:00) in Saint-Lary-Soulan, organised by Sports Natures des Pyrénées and T2S, starting from rue Vincent Mir and climbing hard toward the high pass for a pure mountain-road half marathon experience.
Race Date:
19 July, 2026
Sunday 19 July 2026 (08:00) in Saint-Lary-Soulan (Hautes-Pyrénées, France), the Défi Ultime is organised by Sports Natures des Pyrénées and T2S, starting from rue Vincent Mir (centre-ville de Saint-Lary) and sending runners up to the Col du Portet before a demanding descent back to the valley.
Weather based on historical averages.
FAQs
What is the Sprint de l’Adet 11km?
How long is the Sprint de l’Adet 11km?
Where does the Sprint de l’Adet 11km take place?
What is the elevation gain of the Sprint de l’Adet 11km?
How can I prepare for the Sprint de l’Adet 11km?
How do I choose the right training plan for the Sprint de l’Adet 11km?
The Sprint de l’Adet runs on Saturday 18 July 2026 (19:00) in Saint-Lary-Soulan, organised by Sports Natures des Pyrénées and T2S, a thrilling downhill-only road race from the Pla d’Adet area back into town that rewards fast legs and brave pacing.
The Sprint de l’Adet 11km is 11km long.
The Sprint de l’Adet 11km takes place in Saint-Lary-Soulan, France.
Runna classifies the Sprint de l’Adet 11km elevation profile as Rolling.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Sprint de l’Adet 11km?
The Sprint de l’Adet runs on Saturday 18 July 2026 (19:00) in Saint-Lary-Soulan, organised by Sports Natures des Pyrénées and T2S, a thrilling downhill-only road race from the Pla d’Adet area back into town that rewards fast legs and brave pacing.
How long is the Sprint de l’Adet 11km?
The Sprint de l’Adet 11km is 11km long.
Where does the Sprint de l’Adet 11km take place?
The Sprint de l’Adet 11km takes place in Saint-Lary-Soulan, France.
What is the elevation gain of the Sprint de l’Adet 11km?
Runna classifies the Sprint de l’Adet 11km elevation profile as Rolling.
How can I prepare for the Sprint de l’Adet 11km?
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the Sprint de l’Adet 11km?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Le Semi du Portet Half Marathon?
How long is the Le Semi du Portet Half Marathon?
Where does the Le Semi du Portet Half Marathon take place?
What is the elevation gain of the Le Semi du Portet Half Marathon?
How can I prepare for the Le Semi du Portet Half Marathon?
How do I choose the right training plan for the Le Semi du Portet Half Marathon?
The Semi du Portet takes place on Sunday 19 July 2026 (08:00) in Saint-Lary-Soulan, organised by Sports Natures des Pyrénées and T2S, starting from rue Vincent Mir and climbing hard toward the high pass for a pure mountain-road half marathon experience.
The Le Semi du Portet Half Marathon is 21km long.
The Le Semi du Portet Half Marathon takes place in Saint-Lary-Soulan, France.
Runna classifies the Le Semi du Portet Half Marathon elevation profile as Rolling.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Le Semi du Portet Half Marathon?
The Semi du Portet takes place on Sunday 19 July 2026 (08:00) in Saint-Lary-Soulan, organised by Sports Natures des Pyrénées and T2S, starting from rue Vincent Mir and climbing hard toward the high pass for a pure mountain-road half marathon experience.
How long is the Le Semi du Portet Half Marathon?
The Le Semi du Portet Half Marathon is 21km long.
Where does the Le Semi du Portet Half Marathon take place?
The Le Semi du Portet Half Marathon takes place in Saint-Lary-Soulan, France.
What is the elevation gain of the Le Semi du Portet Half Marathon?
Runna classifies the Le Semi du Portet Half Marathon elevation profile as Rolling.
How can I prepare for the Le Semi du Portet Half Marathon?
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the Le Semi du Portet Half Marathon?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Le Défi Ultime Marathon?
How long is the Le Défi Ultime Marathon?
Where does the Le Défi Ultime Marathon take place?
What is the elevation gain of the Le Défi Ultime Marathon?
How can I prepare for the Le Défi Ultime Marathon?
How do I choose the right training plan for the Le Défi Ultime Marathon?
Sunday 19 July 2026 (08:00) in Saint-Lary-Soulan (Hautes-Pyrénées, France), the Défi Ultime is organised by Sports Natures des Pyrénées and T2S, starting from rue Vincent Mir (centre-ville de Saint-Lary) and sending runners up to the Col du Portet before a demanding descent back to the valley.
The Le Défi Ultime Marathon is 42km long.
The Le Défi Ultime Marathon takes place in Saint-Lary-Soulan, France.
Runna classifies the Le Défi Ultime Marathon elevation profile as Rolling.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Le Défi Ultime Marathon?
Sunday 19 July 2026 (08:00) in Saint-Lary-Soulan (Hautes-Pyrénées, France), the Défi Ultime is organised by Sports Natures des Pyrénées and T2S, starting from rue Vincent Mir (centre-ville de Saint-Lary) and sending runners up to the Col du Portet before a demanding descent back to the valley.
How long is the Le Défi Ultime Marathon?
The Le Défi Ultime Marathon is 42km long.
Where does the Le Défi Ultime Marathon take place?
The Le Défi Ultime Marathon takes place in Saint-Lary-Soulan, France.
What is the elevation gain of the Le Défi Ultime Marathon?
Runna classifies the Le Défi Ultime Marathon elevation profile as Rolling.
How can I prepare for the Le Défi Ultime Marathon?
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the Le Défi Ultime Marathon?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Défi du Col du Portet or T2S Event. All event details are based on publicly available information and are provided solely to help users discover running events. Runna does not use any official logos, images, or proprietary content from this event or its organiser. Any trademarks or names mentioned are used descriptively to identify the event in a factual manner. For the most accurate and up to date information (including to register or purchase an entry to the event), please visit the Défi du Col du Portet website.
