Trail running course near Radda in Chianti, Tuscany, IT
Chianti Ultra Trail by UTMB

Chianti Ultra Trail by UTMB 21K

21K·170m gain·Radda in Chianti, Italy
mountaintrailhalf marathon

AI-generated image

Distance21K
Gain170m
DateMar 2026

About This Race

The Chianti Ultra Trail by UTMB 21K offers runners a half-marathon introduction to one of Tuscany's most celebrated wine regions. Set in the heart of Chianti Classico country with headquarters in the medieval village of Radda in Chianti, this March event captures the landscape during early spring when vineyards are just beginning to awaken. The race forms part of the broader Chianti Ultra Trail by UTMB festival, bringing the UTMB World Series standards to a region better known for Sangiovese than switchbacks. The 21-kilometer distance provides a accessible entry point to trail running in this demanding terrain without requiring the overnight preparations of the longer ultra distances. Runners navigate through working vineyards, olive groves, and oak forests that characterize the Chianti hills, passing centuries-old farmhouses and stone walls that define the agricultural heritage of this UNESCO-protected landscape. The March timing means cooler temperatures and fewer tourists than summer, though weather can be variable in the Tuscan spring. As part of the UTMB World Series, the event brings international trail running organization to a distinctly Italian setting. Race logistics center on Radda in Chianti, a compact hilltop town that has anchored the region's wine trade since medieval times and provides straightforward access to trail networks radiating through the surrounding estates.

The course explores the agricultural landscape surrounding Radda in Chianti, moving through the patchwork of vineyards, woodlands, and olive groves that define this wine-producing region. Runners can expect mixed terrain typical of Tuscan farmland, including dirt roads connecting estates, vineyard access paths, and forest trails through the oak and chestnut woods that separate cultivated areas. The route likely incorporates sections of the region's white roads, the unpaved limestone tracks called strade bianche that historically connected farms and villages across central Italy.

Specific routing details and cumulative elevation are not published in advance. Runners should prepare for variable footing including compact dirt, loose gravel, and potentially muddy conditions depending on spring weather patterns.

Elevation Profile

Elevation profile estimated from terrain data. Actual course may differ.

The course gains 170m over 21km, with the steepest section between km 39–km 39.

Location

Practical Info

Weather

March in Tuscany brings variable spring conditions with daytime temperatures typically ranging from 10-15°C (50-59°F). Morning fog is common in the valleys, and rain showers are possible throughout the day. Runners should prepare for potentially muddy trail sections and cool starts with warming conditions as the day progresses.

Nearest Airport

FLR - Florence Airport

Accommodation

Radda in Chianti is a small village with limited hotel capacity, though the broader Chianti region offers extensive agriturismo farmstay options and vacation rentals within short driving distance. The larger towns of Castellina in Chianti and Gaiole in Chianti provide additional lodging. Early booking is recommended as March falls within shoulder season for wine tourism. Siena, approximately 30 kilometers south, offers more extensive accommodation options with regular bus connections to the Chianti villages.

Best For

destination runnerswine enthusiastscultural experience seekersintermediate to advanced trail runners

Notable Features

The race combines UTMB's international trail running framework with the distinctive character of Chianti Classico wine country. Running through a working agricultural landscape during early spring provides a different perspective than the summer tourist season, with vineyard work underway and the hillsides showing the full contours not yet softened by foliage. The medieval architecture of Radda in Chianti and surrounding hamlets adds historical context that distinguishes this course from purely wilderness trail races. As part of a multi-distance event, the 21K shares finish line atmosphere and event logistics with runners tackling the longer ultra distances.

Other Distances at This Event

10K

47m gain

The route explores the characteristic Chianti terrain of mixed surfaces, including dirt paths between vine rows, connecting trails through oak and chestnut woods, and brief sections through historic village centers with their distinctive pietra serena stonework. Runners can expect the gentle undulations typical of Tuscan hills, though the 10K distance moderates the cumulative effect. The course showcases working vineyards and agricultural landscapes that define this UNESCO-recognized cultural zone.

46K

551m gain

The route departs Radda in Chianti and explores the forested hills and agricultural valleys that define central Tuscany. Trails pass through working vineyards where spring pruning is still underway, cross oak and chestnut forests, and touch on hamlets like Volpaia and Vertine that date to medieval times. The terrain switches frequently between maintained vineyard access roads and narrower woodland paths, with stream crossings and stone staircases adding technical variety. While complete course details remain subject to annual confirmation, the mixed terrain designation reflects the characteristic Chianti landscape: neither purely technical mountain running nor groomed trail racing, but rather a shifting combination that requires attention throughout. Navigation follows standard trail markings with course marshals at key junctions, though runners should expect some exposure to vehicle-accessible roads during village passages.

75K

577m gain

The 75K route explores the heart of the Chianti Classico wine region, connecting medieval villages and working vineyards through trails that have served local communities for centuries. Runners encounter mixed surfaces throughout, from narrow dirt paths through oak and chestnut forests to exposed vineyard roads with commanding views across the Tuscan hills. The terrain demands continuous attention to footing, particularly on descents where loose stones and root systems require technical skill. Mid-March timing means cooler temperatures and the possibility of muddy conditions, especially in forested sections where winter runoff lingers. The course includes several aid stations positioned in villages along the route, offering both standard ultra nutrition and regional specialties.

120K

5,200m gain

The flagship 4 Running Stone distance takes runners on an epic journey connecting Chianti's historic castles across 120 kilometers of demanding terrain. With 5200 meters of elevation gain, this race represents one of the more challenging offerings in the UTMB World Series, demanding both physical and mental fortitude.