calendar_today 02 May, 2026 – 03 May, 2026
directions_run Running
language Official Website
sell $45.50 – $113.75
The Silabur Ultra Trail (SUTra) 2026 is an adventurous mountain running event scheduled for May 2–3, 2026, in the Bidayuh village of Kampung Batu Bedang, Sarawak. This race is renowned for its unique course that traverses natural mountain trails and the spectacular Silabur Cave, also known as the "Jade Cave." Located approximately 100km from Kuching, the event provides a profound immersion into the rainforests and subterranean wonders of East Malaysia.
| Race Distance | Time Limit (Cutoff) | Key Landmark | Participant Requirement |
|---|---|---|---|
| 100KM Ultra | 33 Hours | Silabur Cave (Jade Cave) | Aged 18+ |
| 50KM Ultra | 16 Hours | Mountain Trails | Aged 18+ |
| 30KM Trail | 9 Hours | Natural Ridges | Aged 18+ |
| 15KM Trail | 5 Hours | Beginner Friendly | Open |
The geography of the course is defined by the limestone karst landscape typical of the Serian region. Runners navigate a mix of technical jungle singletrack and cavernous passages. The Silabur Cave offers a cool but humid subterranean environment, featuring high ceilings and limestone formations that earned it the "Jade Cave" moniker. In early May, Sarawak experiences a tropical climate with temperatures often reaching 32°C (90°F) and high humidity. Sudden tropical downpours are common, making the limestone surfaces and forest floor slick, which necessitates trail shoes with aggressive grip and a high degree of self-sufficiency for the ultra-distance categories.
Logistically, SUTra 2026 operates on a semi-self-sufficiency model, meaning drinking cups are not provided at water stations; runners must carry their own hydration vessels. Mandatory equipment checks are performed before the flag-off at the official tent, and successful participants are marked with a unique ribbon on their backpacks. The event is organized by Alpha Sports Event and is affiliated with the Asia Trail Master series. For accommodation, the Borneo Empurau Farm & Resort serves as the official hotel. Registration is non-refundable and non-transferable, and the 100km category requires participants to be prepared for both daytime heat and overnight forest navigation.
May 02, 2026
Distance — 100K
Type — Running
07:00
$113.75
May 03, 2026
Distance — 50K
Type — Running
04:00
$93.50
May 03, 2026
Distance — 30K
Type — Running
05:00
$70.75
May 03, 2026
Distance — 15K
Type — Running
07:00
$45.50
These values represent the 3-year monthly averages for May in Kampung Batu Rekang.
Watch highlights and course previews from previous years.
Explore other exciting events happening in this same region.
location_on Kampung Boyan, Sarawak, MY
calendar_today Jul 26, 2026
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