The Chalouette Trail Race is an annual must-attend event for trail runners in the Essonne region. Held each year in Chalo-Saint-Mars, this race offers participants a chance to explore the pristine landscapes of the Vallee de la Chalouette, known for its varied trails and rich rural heritage. The race features several formats catering to all levels: - The 23 to 25 km trail run with approximately 480 to 500 meters of elevation gain is perfect for experienced runners. - A shorter option of 10.5 to 11 km, including about 170 to 260 meters of ascent, suitable for those new to the discipline. - A Nordic walking route covering 11 kilometers. - And a family-friendly course stretching around 4.5 kilometers. Bib collection is available on Saturday afternoon from 2:00 PM to 5:00 PM at the event venue. The courses wind through forest paths, technical trails, small roads, and the slopes of the valley. Runners will navigate through woods, agricultural plateaus, wetlands, cross several bridges, and face a ford crossing that adds an element of challenge and character to the race experience. This diverse terrain ensures both fun and demanding conditions for all participants. Beyond its sporting appeal, the Chalouette Trail Race is celebrated for its warm atmosphere. The support from volunteers, well-organized aid stations, and convivial meal at the finish line make it a beloved event among local runners. The race also plays an important role in promoting the natural and cultural heritage of the Vallee de la Chalouette. Ideal for nature lovers seeking an authentic trail experience in Île-de-France, this race offers a blend of technical challenge, camaraderie, and stunning scenery.
Races Offered
23 km
Sep 13, 2026
straighten
Distance —
23K
terrain
Type —
Running
timer
09:00
sell
€20.00
11 km
Sep 13, 2026
straighten
Distance —
11K
terrain
Type —
Running
timer
09:05
sell
€10.00
11 km
Sep 13, 2026
straighten
Distance —
11K
terrain
Type —
Running
timer
09:30
sell
€10.00
Course des familles - 5 km
Sep 13, 2026
straighten
Distance —
5K
terrain
Type —
Running
timer
09:30
sell
€5.00
Weather History
These values represent the 3-year monthly averages for September in ST HILAIRE.
thermostatTemperature
13.9° / 23.8°
wb_sunnyFeels like
12.6° / 22.2°
light_mode
Avg sunshine hours
9h 32m
water_drop
Avg rainfall
2.0 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
11.8 km/h (Light breeze)
opacity
Sweat loss rate
Moderate
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Moderate (5.0)
humidity_mid
Humidity
73.3%
wb_twilight
Sunrise
07:34
nightlight
Sunset
20:04
Hotels & Places to Stay
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