Roll of Honour and History of the Corsa della Bora

La Corsa della Bora was founded in 2015 and saw its first official edition in 2016, organised by ASD SentieroUNO in Trieste. It is run every year between the Italian and Slovenian Karst, with the start and finish located between Trieste city centre and PortoPiccolo (Sistiana). The 2027 edition (9-10 January 2027) is the 12th edition11 editions already completed, from 2016 to 2026.

According to official data 2027, the race brings together athletes from 70 nations, with around 3,300 participants for recent editions. The event now comprises 7 races, from the 4 km of the S1 Borin to the 116 km of the S1 Bora Ultra — the longest distance in the 2027 edition — with fixed “1 euro per km” rates since 2016. It is an ITRA and UTMB Index qualifying race over multiple distances, under the aegis of CONI/AICS.

The distances and names of the races have changed almost every year: there is no single, fixed route from one edition to the next, which is why this page does not list a “course record” (see below) and why the list of winners should be read edition by edition, rather than as a continuous series over the same distance.

Hall of Fame — winners by edition

The intermediate line: from S1 Trail 57 km to S1 TransKarst Ultra 55 km

This distance — today the S1 TransKarst Ultra, 55 km — is the successor to the historic 57-58 km race that for years represented the intermediate challenge of the event, before its transformation into a circular route in 2026. The name registered in the timing system has changed several times over the years: the data below reports the name under which the edition is currently known, not necessarily the one communicated to the public at that historical moment.

The premier ultra: from the Ipertrail and Soča Ultra to the S1 Bora Ultra 116 km

The event’s ultra-distance race has changed its name and distance several times: S1 Ultra and Ipertrail (164–169 km as the crow flies), then S1 Soča Ultra (164 km), S1 Anniversary Ultra (105 km) and, from 2027, S1 Bora Ultra (116 km), which is now the event’s longest distance.

Note on the 2023 and 2024 editions: the 2023 men’s winner (Petter Restorp) is confirmed by the official website; the other names for these two editions are taken from external media sources, which are cited alongside the information, and the times are not available in the race’s digital archive.

The editions 2016-2019 e 2021 These are currently being reorganised in the archives and do not appear in this table: the 2021 edition went ahead as planned, however, with over 1,000 competitors, in the midst of the pandemic.

All distances — 2025 and 2026 editions

For the two most recent editions, the complete list of winners by distance is fully available.

2026 Edition (4 January 2026, 3,360 participants)

2025 Edition (4 January 2025, 3,045 registered)

Route record

This page does not propose a record of the route. The course and distances change substantially almost every year: the intermediate distance goes from a linear 57-58 km to a loop of 55 km, the main ultra goes from a linear race of 164-169 km to 105 km and then to 116 km. Comparing times between different editions on different courses would be misleading data: the solid comparison remains that within the same edition, reported in the tables above.

Historical numbers

• 12 editions totals including 2027 (11 completed 2016-2026 + 2027 planned)
• 70 nations represent
• around 3,300 participants for recent edition
• 7 races in the 2027 edition, from 4 to 116 km
• 5 distances out of 7 qualifying UTMB Index, 6 out of 7 ITRA certified
• “1 euro per km” blocked since 2016

Registered participants per edition:

For the complete picture of distances, elevation changes, cut-off times and certifications: Official Data La Corsa della Bora 2027.