Roll of Honour and History of the Corsa della Bora

The Corsa della Bora was founded in 2015 and held its first official edition in 2016, organised by ASD SentieroUNO in Trieste. Every year it runs across the Italian and Slovenian Karst, with the start and finish between central Trieste and PortoPiccolo (Sistiana). The 2027 edition (9–10 January 2027) is the 12th edition: 11 editions completed so far, from 2016 to 2026.

The race brings together athletes from 70 nations, with around 3,300 participants per edition in recent years. The event now features 7 races, from the 5.5 km S1 Borin to the 116 km S1 Bora Ultra — the longest distance of the 2027 edition — with entry fees locked at “€1 per km” since 2016. Several distances are ITRA and UTMB Index qualifiers, and the event is held under the aegis of CONI/AICS.

Race distances and names have changed almost every year: there is no single course that stays the same from one edition to the next, which is why there is no “course record” (see below). The roll of honour should therefore be read edition by edition, not as a continuous series over the same distance.

Roll of honour — winners by edition

The middle distance: from the S1 Trail 57 km to the S1 TransKarst Ultra 55 km

This distance — now the S1 TransKarst Ultra, 55 km — is the heir to the historic 57–58 km race that for years was the event’s middle-distance challenge, before it became a loop in 2026. Its name in the timing system has changed several times over the years: the table below shows the name under which each edition is listed today, which is not necessarily the one announced to the public at the time.

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

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

Times are not available for the 2023 and 2024 editions.

The editions 2016-2019 and 2021 are currently being reconstructed from our archives and do not appear in this table. The 2021 edition nevertheless went ahead as normal, with more than 1,000 competitors, at the height of the pandemic.

All distances — 2025 and 2026 editions

For the two most recent editions, the full list of winners for every distance is available.

2026 edition (4 January 2026, 3,360 entrants)

2025 edition (4 January 2025, 3,045 entrants)

Course record

There is no course record. The course and the distances change substantially almost every year: the middle distance has gone from a 57–58 km point-to-point race to a 55 km loop, while the main ultra has gone from a 164–169 km point-to-point race to 105 km and then to 116 km. Comparing times from different editions run on different courses would be misleading: the meaningful comparison is within the same edition, as shown in the tables above.

History in numbers

• 12 editions in total, including 2027 (11 held from 2016 to 2026, plus the upcoming 2027 edition)
• 70 nations represented
• around 3,300 participants per edition in recent years
• 7 races in the 2027 edition, from 4 to 116 km
• 5 of the 7 distances are UTMB Index qualifiers; 6 of the 7 are ITRA-certified
• entry fees locked at “€1 per km” since 2016

Registered entrants by edition:

For the full picture of distances, elevation gain, time barriers and certifications: Corsa della Bora 2027: Official Data.