Join the 6th edition of BTR Ultra in Bali! From scenic 7K runs to the intense 100K “Volcano to Volcano” race, experience the beauty of Bali’s trails through Mount Batur and Mount Agung. Don’t miss this epic gathering of trail runners worldwide—sign up now and be part of Bali’s biggest trail running race.
Welcome to the 30K BTR Ultra 2025 category! The BTRU 30K is a thrilling mid-distance trail running category, covering a total of 28.91 kilometers with an elevation gain of 1,205 meters and a cut-off time of 8 hours. This category is designed for trail runners who are not only active but also serious about pushing their limits in the sport. The 30K distance offers an incredible opportunity for committed trail runners to test their endurance and skills on a challenging yet rewarding course around Bali’s iconic Mount Batur. Participants in the 30K category will compete in two divisions: the Open category for all ages and the Masters 50+ years category. Additionally, this race is included in the ITRA (International Trail Running Association) and UTMB (Ultra-Trail du Mont-Blanc) performance indexes, making it an excellent choice for runners who want to improve their race profiles and build their trail running credentials. This index integration means that every step you take on this challenging course contributes to your personal performance data, making the 30K BTR Ultra a valuable addition to your running portfolio. The 30K route is particularly popular among trail runners, as it provides a complete loop around Mount Batur, allowing participants to experience the mountain from every angle. The course includes nearly all of the trails surrounding Mount Batur, taking runners through an extraordinary variety of terrain, each section with its own distinct features. The journey begins by winding through the pine forests that line the mountain, then moves toward the northern slopes of Mount Batur, offering panoramic views and fresh mountain air. As you continue, you’ll make your way up to the summit of Mount Batur, where you can take in the spectacular views of the volcanic crater, rocky landscapes, and, if you’re lucky, clouds blanketing the valleys below. After summiting, the route descends toward the southern side of the mountain, where runners will be greeted by the surreal landscape of the black lava fields, reminiscent of a Martian surface. This area, shaped by past volcanic eruptions, offers a truly unique running experience with its dark, expansive lava fields contrasting against the blue sky and surrounding greenery. Further along the route, participants will pass through local vegetable farms, gaining insight into the rural life of Bali. Here, you can appreciate the cultural richness of the region, as these farms represent the heart of the local community’s agricultural traditions. Running through these fields, you’ll witness a side of Bali that few tourists experience, where nature and culture intertwine seamlessly. The 30K BTR Ultra 2025 promises not only a physical challenge but also an immersive experience in Bali’s natural and cultural landscape. The course’s combination of lush forests, rugged volcanic trails, the expansive black lava fields, and the tranquil farmlands provides an unforgettable journey through some of Bali’s most iconic scenery. Every kilometer of this race is an opportunity to connect with nature, test your endurance, and savor the beauty of Bali from a unique perspective. Whether you’re competing for a podium spot, aiming to improve your UTMB or ITRA index, or simply looking to take on an unforgettable adventure, the 30K BTR Ultra offers an unparalleled race experience. Register now to secure your spot in this highly sought-after event and get ready to embark on a journey around Mount Batur that will challenge, inspire, and stay with you long after the race is over!