UTMB Adds First Event in Indonesia

Today UTMB announced the inclusion of the first event in Indonesia to the World Series. The ‘Trail of the Kings’ in Lake Toba will be held on 17-19 October. From their press announcement:

Trail of the Kings – Lake Toba by UTMB® will make its debut on the UTMB® World Series calendar this October 17-19, 2025, bringing the UTMB® experience to Indonesia and the local trail running community for the very first time. Held on the Samosir Island, a large volcanic island in Lake Toba, this brand-new event promises an unforgettable experience in one of Southeast Asia’s most culturally rich and geologically unique destinations.

Registration for the event will open on 14 July.

I recommend zooming in on the map to see exactly where the event is going to happen. Looks like an incredible place.

The ECC UTMB World Series Calendar is updated.