Niou Maraisthon
Trail Running and Road Running covering 6.5 km to 23.5 km in Sansais (Nouvelle-Aquitaine, France)
Niou Maraisthon is an endurance sporting event in Sansais, Nouvelle-Aquitaine, FR focused on Trail Running and Road Running. First held in 2010, the event is an established fixture on the endurance calendar. Key features include Eco-Friendly, Nature & Off-Road, Forest, Lakes & Ponds.
The race program comprises 3 competitions, including Trail 23.5 km (23.5 km, +611 m D+), Trail 12.2 km (12.2 km, +317 m D+), and Road Running 6.5 km (6.5 km, +29 m D+). The exact date for the next edition is currently open and will be announced by the organizer. Official race regulations, course details, and registration information are provided on the organizer's website (nioumaraisthon.fr).

Event characteristics
Races & distances (3)
| Competition | Discipline | Distance | Elevation gain | Altitude range | Course type | Course & profile |
|---|---|---|---|---|---|---|
| Trail 23.5 km | Trail Running | 23.5 km | +611 m | 5 m - 262 m | Loop course | Route & profile |
| Trail 12.2 km | Trail Running | 12.2 km | +317 m | 8 m - 141 m | Loop course | Route & profile |
| Road Running 6.5 km | Road Running | 6.5 km | +29 m | 11 m - 23 m | Loop course | Route & profile |
Course route & map
Elevation profile & course telemetry
Altitude from 5 m to 262 m above sea level (+611 m D+, -611 m D-)
Elevation profile & course telemetry
Altitude from 8 m to 141 m above sea level (+317 m D+, -317 m D-)
Elevation profile & course telemetry
Altitude from 11 m to 23 m above sea level (+29 m D+, -29 m D-)
Frequently asked questions (FAQ)
When and where does Niou Maraisthon take place?
Niou Maraisthon takes place in Sansais, Nouvelle-Aquitaine, FR (start area at coordinates 46.2751° N, 0.5872° W). The exact date for the next edition is currently open and will be announced by the organizer.
What races and distances are offered at Niou Maraisthon?
The race program comprises 3 competitions, including Trail 23.5 km (23.5 km, +611 m D+), Trail 12.2 km (12.2 km, +317 m D+), and Road Running 6.5 km (6.5 km, +29 m D+). The competitions belong to Trail Running and Road Running.
What is the course layout and elevation profile for Niou Maraisthon?
The main competition (Trail 23.5 km over 23.5 km) is designed as a loop course featuring +611 m of elevation gain and -611 m of elevation loss, ranging between 5 m and 262 m above sea level. An interactive course map with route visualization, elevation profile, and GPX export is available in the course section on this page.
Where can I find registration and official race rules for Niou Maraisthon?
Official race regulations, course details, and registration information are provided on the organizer's website (nioumaraisthon.fr).