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Obala Ultra Trail
108km10864km6435km35

Obala Marathon

35.0km·1000m+
November 8, 11:00 AM
Lonka Izola , Izola,
Slovenia
itra·source

Race Pace Calculator · GPX Analyzer · Trail Finder

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Obala Marathon · Race profile

Distance
35.0km
Gain
1000m+
FlatKM
45.2
Max
257m
Min
-2m

About Obala Marathon

Obala Marathon is the 35.0km trail race at Obala Ultra Trail 2025 (Lonka Izola , Izola, Slovenia). The race starts on November 8, 2025 at 11:00 AM.

Race strategy

Run the downhill at race pace, but focus on the climb.

  • Start easy and control your HR up to 23.3km.
  • Hold your race pace up to 26.9km, but stay in control.
  • The finish is runnable. Save your legs to run it all the way.
  • Ease into the early runnable section, then run your race pace.
  • Start · 0.0km–2.3km · Race-day nerves push your heart rate up: don't follow the crowd, find your own rhythm.
  • Settle in · 2.3km–23.3km · 23.3km of runnable trail, high point 257m. Ease in: hold back more than feels necessary. The race is still ahead. Running pays off here: run wherever you can.
  • Work · 23.3km–26.9km · Plus 1 more climb and 1 descent. This is where the race is built: steady, solid effort. Climb by heart rate or breathing, not pace.
  • Home · 26.9km–35.9km · 9.0km of runnable trail. Build to the finish: leave whatever you have left out on the course. Running pays off here: run wherever you can.

Course

The course climbs 1000m+. With 29m/km of climbing, this is a rolling, mostly runnable course. By gradient, 22% of the distance is uphill, 28% downhill and 50% flat. The longest climb runs 1.1km at an average 11.5% grade (130m of vertical). The longest descent runs 2.5km at an average 8.1% grade (200m of vertical). The steepest climb averages 23.9% over 0.5km. The steepest descent drops at 28.1% over 0.3km. Surface: 51% road, 34% smooth, and 13% trail. Flat-equivalent effort: 45.2 FlatKM.

Summits

The highest summit on the course is Ronek (116m), 33.3km from the start. The course also passes close to Trmun (207m) and Vrh (188m).

Poles

Poles bring little benefit here: only about 1.1km of pole-friendly terrain.

Quad damage

Quad damage risk is low (index 13 of 100): a few descents worth noting, none of them decisive.

Results

365 finishers completed the 2025 edition. Men's winner: Primož PORENTA (Individual Neutral Athletes) in 2:41:42. Women's winner: Nika JANCIC (Slovenia) in 3:11:21.

This page has the full results and splits, a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for Obala Marathon.

Other distances of Obala Ultra Trail 2025Obala 100k (108km)·Obala Ultra (64.0km)

Other editions of Obala Marathon2026

Official websitewww.obalaultratrail.si