Oct 7 Roc d'Azur CIC Frejus Oct 8 HWPO HYROX Boston Boston Oct 8 Spartan Sprint & 100M World Championship Hvar Hvar Oct 8 Kodiak Ultra Marathons by UTMB 2026 Big Bear Lake Oct 8 XTERRA World Championship 2026 Ruidoso Oct 9 WODLA Oslo Throwdown 2026 Fornebu Oct 9 Let's Go Fitness HYROX Geneva Geneva Oct 9 Royal Victoria Marathon Victoria Oct 9 Moab 240 2026 Moab Oct 10 Orlando Spartan Event Weekend at Lake Nona Orlando Oct 10 Nike Melbourne Marathon Festival Melbourne Oct 10 IRONMAN World Championship Kona Kailua-Kona Oct 10 Challenge Vieux Boucau 2026 Vieux Boucau Oct 10 Masters & Teens Throwdown Team Edition 2026 Den Bosch Oct 10 UCI Gravel World Championships Nannup Nannup Oct 10 Roc d'Azur XCM Frejus Oct 10 American Continental XCM Championships Mendoza Mendoza Oct 10 Big Apple Triathlon 2026 New York Oct 10 Battle of the Breasts 2026 St. George Oct 10 Hybrid NW Fitness Race Derby 2026 Derby Oct 10 HYROX Gdansk Gdansk Oct 10 Wiener Stadtische City Run 5.0 Graz Graz Oct 10 Lipno Spartan Weekend 2026 Lipno nad Vltavou Oct 10 Wollongong Spartan Stadion Wollongong Oct 7 Roc d'Azur CIC Frejus Oct 8 HWPO HYROX Boston Boston Oct 8 Spartan Sprint & 100M World Championship Hvar Hvar Oct 8 Kodiak Ultra Marathons by UTMB 2026 Big Bear Lake Oct 8 XTERRA World Championship 2026 Ruidoso Oct 9 WODLA Oslo Throwdown 2026 Fornebu Oct 9 Let's Go Fitness HYROX Geneva Geneva Oct 9 Royal Victoria Marathon Victoria Oct 9 Moab 240 2026 Moab Oct 10 Orlando Spartan Event Weekend at Lake Nona Orlando Oct 10 Nike Melbourne Marathon Festival Melbourne Oct 10 IRONMAN World Championship Kona Kailua-Kona Oct 10 Challenge Vieux Boucau 2026 Vieux Boucau Oct 10 Masters & Teens Throwdown Team Edition 2026 Den Bosch Oct 10 UCI Gravel World Championships Nannup Nannup Oct 10 Roc d'Azur XCM Frejus Oct 10 American Continental XCM Championships Mendoza Mendoza Oct 10 Big Apple Triathlon 2026 New York Oct 10 Battle of the Breasts 2026 St. George Oct 10 Hybrid NW Fitness Race Derby 2026 Derby Oct 10 HYROX Gdansk Gdansk Oct 10 Wiener Stadtische City Run 5.0 Graz Graz Oct 10 Lipno Spartan Weekend 2026 Lipno nad Vltavou Oct 10 Wollongong Spartan Stadion Wollongong

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UTMB

Big Bear Lake, United States

Kodiak Ultra Marathons by UTMB 2026

Big Bear gives the Americas Major a lake-and-mountain base within reach of Los Angeles.

Oct 8, 2026 - Oct 11, 2026 Registration open Southern California mountain UTMB World Series Major with 100M, 100K, 50K, 21K and 10K formats

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Event profile

Competition Details

RALLY maps this event at city level so you can compare destination fit, timing, and competition style before moving to the official entry page.

Date: Oct 8, 2026 - Oct 11, 2026
Location: Big Bear Lake, United States City-level map pin
Format: Southern California mountain UTMB World Series Major with 100M, 100K, 50K, 21K and 10K formats
Disciplines: Trail Running, Ultra
Entry: Registration open
Audience: Mixed field
Trip fit: Destination trip
Coordinates: 34.2439, -116.9114