The Kodiak Ultra Marathon Big Bear returns October 9–11, 2025, turning Big Bear Lake into a trail runner’s paradise. Athletes from around the world will test their limits on rugged alpine trails, pine-covered ridges, and sweeping lake vistas—all at over 6,700 feet of elevation.
With race distances from 10K to 100 miles, the event welcomes both elite ultra runners and adventurous first-timers. Every course showcases the best of Big Bear’s high-altitude terrain and crisp mountain air.
This year’s field includes a mix of world-class elites and passionate everyday runners, all sharing the same challenging course and mountain spirit. Whether chasing podium finishes or personal milestones, participants push through the same climbs, dust, and breathtaking scenery that define the Kodiak experience.
As part of the prestigious UTMB World Series, Kodiak stands out as one of the few “Major” races in the Americas, offering double Running Stones toward UTMB Mont-Blanc qualification and automatic entry for top finishers.
Beyond the trails, the weekend comes alive with a festival atmosphere—music, food, local vendors, and plenty of spots for spectators to cheer. Whether you’re racing, volunteering, or just soaking in the mountain energy, Big Bear Lake is the place to be this October.
THE RACES:
100M (162 km / 100 miles)
- Elevation gain: approximately 15,900 ft (4,850 m)
- Date & Start: October 10, 2025, at 1:00 PM from Rim Nordic Ski Area
- Time limit: 36 hours
- Highlights: A full loop around Big Bear Valley using North Shore trails and parts of the Pacific Crest Trail, with major climbs including Sugarloaf Mountain.
100K (99 km)
- Elevation gain: approximately 10,240 ft (3,120 m)
- Date & Start: October 11, 2025, at 6:00 AM from The Village in Big Bear Lake
- Time limit: 20 hours
- Highlights: Scenic alpine trails through the forest and along the Skyline Trail, plus panoramic ridgeline views overlooking Big Bear Lake.
50K (48.4 km)
- Elevation gain: approximately 4,400 ft (1,339 m)
- Date: October 11, 2025
- Start & Finish: The Village, Big Bear Lake
- Highlights: A challenging yet approachable distance for trail runners, showcasing Big Bear’s signature high-elevation terrain.
21K (19.5 km)
- Elevation gain: approximately 1,890 ft (575 m)
- Date: October 11, 2025
- Location: The Village, Big Bear Lake
- Highlights: A half-marathon distance through forested singletrack with mountain and lake views.
10K (10.5 km)
- Elevation gain: approximately 920 ft (280 m)
- Date: October 11, 2025
- Location: The Village, Big Bear Lake
- Highlights: A scenic intro to trail running—perfect for beginners or supporters who want to experience the race energy firsthand.
Registration: https://kodiak.utmb.world/register
Schedule of Events: https://kodiak.utmb.world/discover/the-event/agenda
More information: https://kodiak.utmb.world/
THE FESTIVAL
The Kodiak Ultra Marathons by UTMB isn’t just a race—it’s a full three-day mountain festival packed with energy, community, and fun for runners and their entire crew. Centered in The Village at Big Bear Lake, the start and finish line sit steps away from local restaurants, shops, and live entertainment, making it easy for athletes and spectators to soak in the excitement.
Throughout the weekend, enjoy food and drinks from local vendors, a live DJ spinning upbeat tracks, and a lively parade through town to kick off race day. Whether you’re running, cheering, or just here for the mountain vibes, Big Bear Lake offers endless ways to celebrate and explore.
See the map below for the festival location and free public parking
Don’t Miss the Adventure
Stay ahead of the crowd—follow Big Bear Waypoint for what’s new, tasty, and happening around the lake!
