13km is the 13.0km trail race at Trail na Mljetu 2026 (Nacionalni park Mljet, Croatia). The race starts on May 2, 2026.
Run the climb at race pace, build your speed on the downhill, and go all out at the finish.
The course climbs 527m+. With 41m/km of climbing, this is a rolling, mostly runnable course. By gradient, 21% of the distance is uphill, 38% downhill and 41% flat. The longest climb runs 1.9km at an average 13.0% grade (249m of vertical). The longest descent runs 4.9km at an average 6.6% grade (324m of vertical). The steepest climb averages 19.2% over 0.9km. The steepest descent drops at 23.3% over 0.3km. Surface: 47% trail, 31% road, and 19% technical. Flat-equivalent effort: 18.1 FlatKM.
The course also passes close to Debela glavica (123m).
Poles bring little benefit here: only about 0.9km of pole-friendly terrain.
There is too little runnable descent to damage the quads: plan the race around climbing and fuelling.
On race day, start temperatures have historically ranged from 15°C to 23°C, with around 18°C at the highest point; the chance of precipitation is about 31%. Heavy rain of 10.0mm or more falls on about 8% of days around this date.
114 finishers completed the 2026 edition. Men's winner: Tonći Borovac (Croatia) in 1:17:36. Women's winner: Zlata Ratković (Serbia) in 1:41:05.
This page has the full results and splits, a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for 13km.
Other distances of Trail na Mljetu 202642km (42.0km)·23.4km (23.4km)
Other editions of 13km2025
Official websitethegreatrefresh.com/mljet-trail
