ZAGREB21 Zagrebački proljetni polumaraton, live.

Zagreb's spring half marathon by the National Library

ZAGREB21 is the Zagreb spring half marathon, a road running weekend that starts and finishes in front of the National and University Library.

The 12th ZAGREB21 is on Saturday 20 and Sunday 21 March 2027. The 5 km starts on Saturday at 19:00, and the half marathon and the relay start on Sunday at 08:30. Start and finish are in front of the National and University Library on Ulica Hrvatske bratske zajednice. The organiser is AK Maraton 2000.

The half marathon is 21,098 m in two laps of different length, first 16.1 km and then 5 km, with a time limit of three hours. It is open to people aged 16 and over on race day. At the last edition the long lap crossed the Sava on the Most slobode and passed the Zagreb Fair and Bundek. Timing is electronic with chips.

The 5 km on Saturday evening is a single lap with a time limit of 45 minutes, which is a pace of 9 minutes per kilometre, and is open from 12 years. It crosses the Most slobode and comes back, so it suits people new to racing as well as those who want a fast evening run.

The organiser says ZAGREB21 is for every generation and level, from people chasing a personal best to people running their first race, and city streets are closed for the race. The area in front of the library is where supporters see both the start and the finish.

On Livebib you can follow a participant who chooses to share their own live position from the phone they carry. This is not the organiser's timing, and official results come from the organiser.