Marathons and running races in Croatia

3 marathons, 6 half marathons and 3 ultras in Croatia.

The next one is the Zagreb Marathon on 11 October 2026.

The flattest marathon is the Zagreb Marathon (60 m of climbing); the hilliest is the Istria 100 by UTMB 42K (1,000 m).

For cool racing conditions, the Istria 100 by UTMB 110K usually starts around 9°C.