Luchon’s 40 Oô mountain route, distinct from the longer ultras
The 40 Oô is a mountain trail event, not a measured 42.195 km road marathon. The official mapping platform gives a more precise track distance than the rounded 42 km category name used in older descriptions. Use the named course and its elevation profile when deciding whether it matches your experience.
The event contains several different long races. La Vénasque, La Route 3404 and Ultra LAT have their own distances, dates and terrain. Do not transfer the 65 km race’s aid stations, cutoff table or 16-hour-plus window to the 40 Oô simply because the pages share the same event branding.
The published 40 Oô profile includes a long ascent and descent, so preparation needs more than flat mileage. Practise moving uphill and downhill with your intended equipment, and compare your expected progress with the final checkpoint table once released. The map’s displayed 07:00 departure should be checked against the final programme before arranging race-morning transport.
The map explicitly warns that the route is accessible only on competition day. Respect that restriction when planning reconnaissance; use public permitted alternatives to prepare for similar terrain. Recheck the organizer’s current mandatory kit, weather notice and participant guide close to the race. Mountain conditions may require changes that a saved map cannot predict. Keep the exact 40 Oô entry and final instructions together, confirm where collection and the briefing take place, and give companions the full route name so they do not follow the schedule for another Luchon race.
Confirmed race date
Luchon Aneto Trail — La 40 Oô Pyrénées: July 3, 2027. Verified on October 14, 2026 against the official event information.
Last-known race profile
These details identify the race page; they do not establish the next edition's operations. The previous race date does not establish the next edition. Use the confirmed date above and recheck the final participant instructions before committing to a race-day schedule.