The harder half of the 100 km course — big climbs, jungle trails, and Kiulu Valley views
The 55 km event covers the first (blue) loop of the 100 km course — generally considered the harder half, with the biggest climbs and most technical sections. Starting with the same route as the 30 km, it diverges to tackle the major ascent past Bukit Tikolod with sweeping ridgeline views, then descends through remote villages before returning to the Kiulu finish. Runners encounter the same tropical heat, river crossings, and narrow jungle trails as the 100 km field, but complete the circuit in daylight.
Some ultra experience recommended
Kiulu, Sabah, MalaysiaApril 03, 2027
Borneo Ultra Trail Marathon 55 km is a loop trail race in Kiulu, Sabah, Malaysia, held on April 03, 2027. The course covers 55 km, climbs 2,077 m, and has an 18h cutoff.
| Location | km | Elevation | Cutoff | Crew |
|---|---|---|---|---|
Start Start | 0.0 | 64 m | — | |
Finish Finish | 48.4 | 66 m | 18h |
Aid station details for this race are still being filled in. Cutoffs and access rules come from the race’s own published information and can change — check the official race details before planning around them.
Sign in for race-day weather at every station, points of interest, segment-by-segment analysis, pacing, and to save this race to your calendar.
Hot exposed sections on the climb past W1 — one of the warmest sections on the course.
No required gear specified
No recommended gear specified
No videos or race reports available for this event yet.
No reviews for this event yet. Be the first to share your experience!
