
Explore the
Koh Chang Trail
Koh Chang Trail is a hilly trail ultramarathon set in Ko Chang, Thailand, taking place on 27 Sep 2026. The event offers 55km, 30km, 15km and 8km options along a hilly course, so there's a challenge for every level. Along the way you'll be treated to a coastal setting, shaded forest trails and island scenery. With entry from 24 EUR, it offers great value for a memorable race day.
The Course Profile
Whether it is a trail road or a challenging city circuit, the route is designed to push your limits.
Athlete Support
Strategically placed hydration stations and cheering zones to keep your momentum high until the very end.
The Finish Line
A grand celebration awaits every finisher. Experience the roar of the crowd and earn your exclusive medal.
A premier international racing destination.
A trail course designed for peak performance.
55km, 30km, 15km, 8km
Experience the electric vibe from start to finish line.
Prepare for the
Koh Chang Trail Experience.

Race Day Readiness
Environment
Event Protocol
Official Timing
& Results
Electronic timing chips provide accurate race data. Be sure to follow all start-zone protocols for a valid finishing time.
Safety &
Participant Support
Dedicated medical and support teams are stationed along the entire course to ensure a safe environment for all athletes.
Global Standards
Koh Chang Trail World-Class Course
A professionally measured and sanctioned route designed to provide a premium racing experience in the heart of the city.
How Back My Run
Transforms Your
Koh Chang Trail.
We bridge the gap between runners and their supporters, turning a solitary challenge into a shared triumph through the power of voice.
Mental Strength at the Wall
When you hit the tough miles of the Koh Chang Trail, your phone triggers messages of encouragement exactly when your pace drops or you reach certain milestones.
Family Presence
Even if your loved ones can't be at the finish line in person, their voices will be right there in your ears, pushing you through every kilometer.
Global Support Network
Supporters from anywhere in the world can record their messages. Distance is no longer a barrier to being part of your Koh Chang Trail journey.
Lifetime Memories
After the race, you get to keep all those emotional voice notes forever. It's not just a race result; it's a collection of love and support.
From Start Line
To The Finish.
Experience the future of race-day motivation in three simple steps.
Download The App
Choose the Koh Chang Trail and create your event in less than a minute.
Collect Support Messages
Share your unique link with friends and family so they can record motivational voice notes for your Koh Chang Trail journey.
Run & Receive Motivation
As you reach key milestones in Koh Chang Trail, supportive voice messages automatically play through your headphones.
Start collecting Voice notes from friends and family!
Everything You NeedTo Know
Answers to common questions about using Back My Run for the Koh Chang Trail.

Support
is Confirmed!
Empower Your Runner In Koh Chang Trail
Don't just watch from the sidelines. Create a personalized motivational network that delivers your voice directly to their ears when they hit the target.