The 2025 Ultraman World Championships returns to Hawaii's Big Island for its 39th edition, November 28-30, 2025, bringing together 40 of the world's most elite ultra-endurance athletes for what many consider the ultimate test of human physical and mental limits. This invitation-only event spans three grueling days and 320 miles (515 kilometers) across the Big Island's most challenging terrain, combining a 6.2-mile ocean swim, 261.4-mile bike ride, and 52.4-mile ultra-marathon run. Founded in 1983 and held annually on Thanksgiving weekend, this race embodies the Hawaiian principles of aloha (love), ohana (family), and kokua (help), creating a unique athletic experience that transcends competition.
Event overview and significance
The Ultraman World Championships represents the pinnacle of ultra-endurance racing, designed not merely as a competition but as an "athletic odyssey of personal rediscovery." Unlike other endurance events, Ultraman's distances are determined by the geography of the Big Island itself, creating a course that showcases Hawaii's diverse landscapes from ocean depths to volcanic peaks. The race attracts participants from around the globe, including athletes from Argentina, Brazil, Canada, Italy, Mexico, Puerto Rico, Spain, Sweden, Slovenia, and the United States.
Entry is strictly limited to 40 participants by invitation only, with invitations typically sent around February 15th. This exclusivity ensures that only the most qualified and prepared athletes attempt this monumental challenge. The event maintains its amateur spirit with no prize money, staying true to the original vision of founder Curtis Tyler.
Three-day race breakdown
Day 1: Ocean to Volcano
Friday, November 28, begins at 6:30 AM with a 6.2-mile open ocean swim from Kailua Bay to Keauhou Bay. Athletes must complete this challenging swim in 5.5 hours or less before transitioning to a 90-mile cross-country bike ride. The cycling portion takes competitors around the southern tip of the island via Route 11, finishing at Kilauea Military Camp in Volcanoes National Park. This stage includes vertical climbs totaling 7,600 feet, testing riders' endurance as they ascend from sea level to volcanic slopes.
Day 2: The Epic Bike Journey
Saturday, November 29, features the race's longest stage: a 171.4-mile bike ride from Volcanoes National Park through diverse Big Island terrain. The route takes athletes from the park to Keaau, then east through Kalapana and Pahoa, continuing through Hilo and north along the scenic Hamakua Coast to Waimea. The stage concludes with a challenging climb to Kamehameha Park in Kapa'au, just north of Hawi town, with vertical climbs totaling 8,600 feet. This stage showcases the island's varied ecosystems, from tropical rainforests to arid pasturelands.
Day 3: The Ultimate Run
Sunday, November 30, culminates with a 52.4-mile double-marathon run starting at 6:00 AM from Hawi. Athletes face the mental and physical challenge of running further than two marathons after already completing two days of extreme exertion. The route follows Highway 270 from Hawi to Kawaihae, then continues via Route 19 to Kailua-Kona, finishing at Old Airport Park, Pavilion 1. This final stage tests every aspect of an athlete's preparation and determination.
Time limits and safety
Each stage must be completed within 12 hours, with the swim portion requiring completion in 5.5 hours or less. Athletes who fail to meet these cutoffs are disqualified from competition but encouraged to continue participating each day. This policy reflects the race's philosophy that the journey itself is as valuable as finishing. The strict time limits ensure athlete safety while maintaining the event's challenging nature.
Qualification requirements
Participation requires completion of one of the official Ultraman events: Ultraman Florida (February 14-16, 2025), Ultraman Arizona (March 21-23, 2025), Ultraman Canada (July 26-28, 2025), or the new Ultraman Mexico (October 17-19, 2025). Additionally, applicants must have completed a long-course triathlon event (preferably Ironman-distance or longer) within 18 months of the application date.
The invitation priority system favors former Ultraman finishers, followed by former crew members and volunteers, with first-time applicants placed on a waiting list. This system maintains the event's community aspect while ensuring experienced athletes share their knowledge with newcomers.
Support crew requirements
Each athlete must be accompanied by a support crew of at least two people throughout the entire course. Many crew members are volunteers from the Big Island community, embodying the spirit of kokua (helping) that defines the event. The crew provides essential support including nutrition, mechanical assistance, navigation, and moral encouragement during the most challenging moments. This team aspect transforms the race from an individual pursuit into a community endeavor.
Cultural significance and atmosphere
The race embodies Hawaiian cultural values that extend far beyond athletic achievement. The principles of aloha, ohana, and kokua create an atmosphere where competitors support each other despite being in competition. This unique spirit attracts athletes seeking more than just a physical challenge – they come for a transformative experience rooted in Hawaiian culture.
The event takes place on Thanksgiving weekend, adding another layer of gratitude and community to the experience. Many participants describe the race as life-changing, with the Hawaiian setting and cultural values creating lasting bonds between athletes, crew members, and local volunteers.
Race headquarters and logistics
The race operates from multiple locations across the Big Island, with the official address listed as UMWC, PO Box 1916, Kealakekua, HI 96750. Athletes and crews typically stay at various accommodations throughout the island, with many choosing locations near transition areas for each stage. The Outrigger Kona Resort and Spa serves as a popular base for participants and spectators.
Spectator information
While the race is invitation-only for participants, spectators are welcome at various points along the course. The start and finish areas offer the best viewing opportunities, with the oceanfront locations providing dramatic backdrops for photography and support. Spectators often become part of the ohana, cheering for all athletes regardless of nationality or affiliation.
The race typically attracts media coverage and documentary filmmakers, drawn by the compelling stories of human perseverance against the backdrop of Hawaii's stunning natural beauty. Official photographers capture the event, providing images that showcase both the athletic achievement and the spiritual journey.
Training and preparation
Athletes typically spend years preparing for Ultraman, with training regimens that must address the unique challenges of each discipline. The combination of open ocean swimming, high-altitude cycling, and ultra-marathon running requires specialized preparation that goes beyond traditional triathlon training. Many athletes work with coaches experienced in ultra-endurance events and spend time training in Hawaii to acclimate to the specific conditions.
The mental preparation proves equally important, as athletes must maintain focus and determination across three consecutive days of extreme physical stress. Many participants emphasize the importance of embracing the Hawaiian cultural values and understanding that finishing is more important than placement.
Event management and tradition
Since 2017, the event has been managed by Sheryl and David Cobb, carrying forward the traditions established by original founder Curtis Tyler and long-time race director Jane Bockus (known as "UltraMama"). This continuity ensures that the race maintains its original character and values while adapting to modern safety and logistics requirements.
The race directors emphasize that Ultraman is more than a sporting event – it's a celebration of human potential and the power of community support. This philosophy attracts participants who are drawn to the transformative aspects of the challenge rather than just the competitive elements.
Applications for the 2025 Ultraman World Championships opened in January 2025 through Active.com, with registration details available on the official website. If you're inspired by this ultimate test of human endurance and possess the necessary qualifications, consider beginning your journey toward this life-changing experience. Whether as a potential participant, crew member, or spectator, the Ultraman World Championships offers a unique opportunity to witness the extraordinary capabilities of the human spirit against the magnificent backdrop of Hawaii's Big Island.
