Welcome to the 3rd Edition of Silabur Ultra Trail 2025 (SUTra2025). This adventure event is presented to you by Alpha Sport Event (ASE).

SUTra2025 will take place at Bidayuh Kpg Lubang Batu, Tebakang. Roughly 40km from Serian town & 100km from Kuching.

The course covers a natural mountain trail & the magnificent Silabur Cave aka Jade Cave.

SUTra2025 offers various distances to choose from the challenging 100km to a shorter beginner friendly 15km. The race course offers 15km/ 30km/ 50km/ 100km.

Discover the beauty of Sarawak when you run over the mountain and explore the caves.