Corsa della Bora – S1 Trail
Edition 2026 Nature Hiking Mountain

Corsa della Bora – S1 Trail

The great winter trail on the Trieste Karst, from 4 to 100 km

Trieste — Trieste (032) Since 2016
Dates 03 Jan — 04 Jan 2026
Location Trieste (032)
Prices
Status Confirmed

About Corsa della Bora

The Corsa della Bora – S1 Trail is the major trail running event that in early January brings thousands of athletes to the Trieste Karst. Based in Portopiccolo (Sistiana), it offers a range of distances from 4 km suitable for everyone to ultra-trails of over 100 km along the Italian and Slovenian karst trails. An international event that opens the sporting year in the sign of nature and the Bora wind's landscape.

Running the Karst in Winter

The Corsa della Bora – S1 Trail is the most important trail running event in the Trieste area: every year, around Epiphany, it attracts thousands of runners from dozens of countries to the Karst. It takes its name from Trieste's most famous wind, the Bora, which blows fiercely over these limestone plateaus overlooking the Adriatic, and is based in the resort of Portopiccolo, in Sistiana, within the municipality of Duino-Aurisina.

A Race for Every Runner

The event's strength lies in its variety of distances, from the shortest and most accessible to the extreme ultras: it ranges from a few kilometers designed for families and beginners to ultra-races exceeding 100 km, traversing the trails of the Italian and Slovenian Karst. The routes are renewed each year, offering regular participants new challenges and ever-changing scenery.

An International Event

Over the years, the Corsa della Bora has grown to international significance, with thousands of participants from numerous countries. Organized by the Municipality of Trieste with the SentieroUNO Association, it is part of the S1 Trail circuit and represents for many the opportunity to kick off the trail season in a unique setting, where the Karst stone, forests, and sea merge.

The Charm of the Trieste Karst

Running in the Karst means crossing a stark and fascinating landscape: sinkholes, dry stone walls, karst scrubland, forests, and breathtaking views of the Gulf of Trieste. Even for those not competing, the Corsa della Bora is an opportunity to discover this border region between Italy and Slovenia, rich in nature and history.

Corsa della Bora — edition 2026

The XI Corsa della Bora – S1 Trail takes place on January 3-4, 2026, based in Portopiccolo (Sistiana). Eight distances from 4 to 105 km along the Italian and Slovenian Karst trails, with approximately 3,000 participants from over 40 countries. Organized by the Municipality of Trieste with the SentieroUNO Association.

The 11th edition of the Corsa della Bora kicks off Trieste's 2026 sporting calendar on January 3 and 4, with its base in the Portopiccolo resort in Sistiana. Eight distances, from 4 to 105 km, lead athletes along the trails of the Italian and Slovenian Karst; approximately 3,000 participants are expected from over 40 countries. Traffic diversions are planned in the area on race days.

Programme Corsa della Bora 2026

2026 Program

  • January 3 – 4: Trail and ultra-trail races based in Portopiccolo
  • Eight distances from 4 km up to 105 km, on the trails of the Italian and Slovenian Karst
  • Short races suitable for families and beginners, up to the most challenging ultras
  • Approximately 3,000 participants expected from over 40 countries

The start times for individual distances and details of the routes (renewed annually) will be published on the s1trail.com website.

Highlights Corsa della Bora 2026

The eight distances across the Karst, from the accessible short race to the ultra-trail over 100 km, based in Portopiccolo.

Prices Corsa della Bora 2026

Registration fees vary by distance; rates and methods are available on s1trail.com.

Practical information — Corsa della Bora

Race base: Portopiccolo, Sistiana (Duino-Aurisina), a few minutes from the A4 motorway and about 20 minutes from FVG airport.

Getting there: by car via A4 (Sistiana/Duino exit) or from FVG Airport of Ronchi dei Legionari; shuttle buses and directions available on race days.

Registration: via the s1trail.com website, with a choice of different distances.

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Where does it take place — Corsa della Bora

Portopiccolo – Carso triestino

Contact Corsa della Bora

Corsa della Bora in brief

Nature Hiking Mountain Sea Sport Outdoor Itinerant International Trieste

History of Corsa della Bora