Flower 20K is the 17.0km trail race at Amazean Jungle Trail by UTMB 2026 (Betong, Indonesia). The race starts on April 30, 2026.
By gradient, 17% of the distance is uphill, 25% downhill and 58% flat. Surface: 54% road and 10% smooth. Flat-equivalent effort: 20.6 FlatKM.
The course is runnable enough that trekking poles are not needed.
There is too little runnable descent to damage the quads: plan the race around climbing and fuelling.
512 finishers completed the 2026 edition. Men's winner: Chinnakrit Soongpankhao (Thailand) in 1:24:30. Women's winner: Ombeline Hauwaerts (Belgium) in 1:34:02.
This page has the full results and splits, a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for Flower 20K.
Other distances of Amazean Jungle Trail by UTMB 2026Betong 100M (116km)·Tunnel 100K (91.0km)·Jungle 50K (55.0km)·Mist 20K (26.0km)
Other editions of Flower 20K2025
Official websiteamazeanjungletrail.utmb.world