S1 Half Trail – 23 km
New 2027! New route!
The S1 Half Trail is the most balanced race for those who already run trails and are looking for a complete experience: varied, engaging, with the right mix of smoothness and fatigue. It is suitable for those who want a real but manageable challenge, without extremes, where rhythm, continuity and a bit of attention in the rougher sections count. It is the perfect distance if you want to feel the soul of the Bora and finish with the feeling of having done trail running ’properly“.
📍 Logistics
🧳 Cloakroom service
🚧 Time barriers, aid stations and checkpoints
- 🥤🍴🍲 ⏱️ Duino, km 5.5
- 🥤🍴 ⏱️ Medeazza, km 10.1
- 🥤🍴 ⏱️🚧 Visogliano, km 19.6 14.45
🎒 Mandatory gear
- Food and water needed to run 4 km
- Personal glass or cup for drinking at aid stations
- Thermal blanket (emergency isothermal sheet)
- Mobile phone
🚌 Shuttles
💶 Entry fees
- € 22 until 1 June
- € 31 until 1 September
- € 35 until 1 November
- € 45 until 15 December
- € 55 until 10 January
🏅 Awards
Not ready to sign up yet?
If you don't want to sign up now, let's stay in touch: we'll update you on the competition's news. At most one email a month.
Route and Altitude Profile
Cancellations and Relief
Can't find the GPS track?
Use our interactive map (and, when available, those of ITRA): they offer a accurate representation to the centimetre of the route, not downloadable but more than enough to draw your reconnaissance laps.
We often publish rings and sections precisely so that you can test the track yourself before the event.
To avoid inconsistencies and ensure that everyone uses the latest version, the official GPX track is only released once, in the week before the race. In the past, many people would download a track many months in advance and then no longer follow the updates: with any works, detours or temporarily impracticable passages, they risked using a file that was not aligned with the balisage. That is why today we only distribute the GPX close to the event.
In the meantime, we recommend:
- display previous years' tracks online, useful for training and surveys.
- consult the interactive map to plan reconnaissance;
- check our Facebook page and articles on the website for updates and reconnaissance tours;
CAI trail network
This course follows the CAI trails of the Karst
The race alternates trails from the CAI FVG registry — Sector 0, Karst — with connecting sections of its own, marked by the organisation.
- CAI 001
- CAI 001a · Sentiero del Mitreo
- CAI 033
- CAI 003a
- CAI 003 · Alta Via del Carso
- CAI 008
The route
From the Bora Village at PortoPiccolo the Karst edge is tackled straight away: white stone, Mediterranean scrub, the sea widening with every metre gained. It is not a gentle start, but an honest one — the Half shows what it is made of right from the off.
Then the Sentiero Rilke suspended between sky and sea, the village of Duino with its castle and the White Lady, and the heart of the race: the Monte Ermada loop, among dolines, pine woods and First World War trenches healed over by the greenery. The return towards Visogliano and Sistiana is the most flowing part, all the way to the finish by the sea.
It is the most balanced distance of the Corsa della Bora: a real challenge, but a manageable one.
Who is this race for
The S1 Half Trail is the most balanced race for those who already run trails and are looking for a complete experience: varied, engaging, with the right mix of flow and effort. It's a real but manageable challenge – not extreme – where pace, continuity, and a bit of technical attention on the rougher sections count (particularly the initial descent from PortoPiccolo and the ups and downs of the Ermada loop).
Competitive or non-competitive. With a competitive medical certificate, departure is at 09:30 in competitive mode, with rankings valid for UTMB Index and ITRA. Without a certificate, departure is at 10:00 along with the S1 Family Hike & Trail, in non-competitive mode: same finisher medal, no rankings.
Even for fast hiking. At a sustained walking pace (around 5 km/h), the 23 km are covered in approximately 4 hours and 36 minutes, well within the maximum time of 6 hours and respecting the Visogliano checkpoint (2:45 PM).
Dogs. Dogs are only allowed on a lead in the non-competitive S1 Half Trail (as in the S1 Family Hike & Trail and S1 Borin). Not allowed in the competitive version.
Sister races — 17-25 km band. The S1 Half Trail belongs, in terms of physical exertion, to the 17-25 km distance category within the group's event family: Sardon Trail (17 km) and Sardon Half (22 km) on sardon.run, Saisera Crossing (18 km), Lussari (24 km), and Dogna Crossing (25 km) on Alpe Adria Ultra Trail (Winter edition). We do not offer 1:1 pairings, but rather the entire range as equivalent alternatives for those seeking a similar experience at another event within the group.
Would you like to train on the S1 Half Trail paths even outside of the race weekend? The guide Trail Running in Trieste collects paths in the Karst region that are accessible all year round.
In Trieste, you never know.
One year in short sleeves drinking beer by the sea after the race. The next year wrapped up to the teeth. The weather changes, the fun remains. Look at the statistics of 10 editions and decide at the last moment how to dress.
Gallery
PortoPiccolo - Bora Village
Start and finish of all races. The Bora Village in PortoPiccolo is the base of the event: a completely covered and heated facility overlooking the Gulf of Trieste, where you will find everything you need before, during and after the race.
A single location for bibs, expo, showers, catering and prize-giving - no trips, no dispersal. You arrive, you run, you celebrate.
Accommodation
Apartment or hotel: book independently or directly from your runner profile. At La Corsa della Bora you can share an apartment with other runners - we take care of matching roommates.
PortoPiccolo and Sistiana offer solutions within walking distance. Trieste is a 20-minute bus ride away.
Shuttles
Dedicated shuttles both to and from Trieste Central Station to Bora Village and vice versa. Each distance has its own timetable - check the page for your race.
Bora Village is also on the regular airport-Trieste bus line: you can reach it by public transport without a shuttle bus.
Arriving in Trieste
Bora Village is in a strategic location:Two minutes from the motorway exit, 15 minutes from Trieste Central Station, 20 minutes from Friuli Venezia Giulia Airport.
By car, train, bus or plane - Trieste is closer than you think. From Ljubljana it is 90 minutes, from Venice less than two hours.
PortoPiccolo, Sistiana - Duino-Aurisina (TS) - 2 min from the A4 motorway - 45.7633° N, 13.6350° E
🩺 Medical certificate: competitive and non-competitive
✅ Without medical certificate
🚧 Only with medical certificate
- NOT you are an Italian citizen and
- NOT you belong to an Italian sports club recognised by CONI