Ultra X Slovénie

The Ultra X Slovénie is a trail ultramarathon in Ajdovščina, Slovenia, held over two days on 4 and 5 September 2027, with shuttles from Ljubljana to the start. The headline 110 km (4,046 m of elevation gain) can be run in one go or in two stages: 60 km (2,716 m) on the first day and 50 km (1,389 m) on the second, and each stage can also be run on its own. There are also 25 km (1,175 m) and 12 km (148 m) races, and a campsite is available to participants.

The course crosses the Julian Alps, north of the Adriatic coast, and the uplands of the Vipava Valley, known for its vineyards and Mediterranean feel. The terrain alternates between runnable sections and more technical passages. The race is part of the Ultra X European Grand Slam, alongside the series' ultra-distance events in Finland and Madeira.