We are pleased to announce that Kodiak Ultra Marathons by UTMB has become the latest trail running event to be added to the UTMB® World Series portfolio!
We are excited that Kodiak Ultra Marathons is joining the UTMB Family! The race itself will remain largely the same, with the same race team leading the event. As part of the UTMB World Series, finishers of the 100-Mile, 100K, 50K and Half Marathon (21K) will get to collect Running Stones and have the opportunity to try their chance at competing in the UTMB World Series Finals at UTMB Mont-Blanc.

Kodiak Ultra Marathons by UTMB® takes place in Big Bear Lake, California from October 13-15, 2023. There will be five distances over the race weekend: 100-Mile, 100K, 50K, Half
Marathon (21K), 10K. This race offers runners the hospitality of a rustic, mountain town and a weekend-long festival for you and your support crew. With 3 days of racing and 5 distances, each course presents a unique running experience. Runners will enjoy views of Big Bear Lake throughout their journey – whether you’re climbing to the top of Sugarloaf Mountain or descending into Siberia Canyon, the courses will ‘wow’ you at every turn. UTMB Index Priority Registration opens May 8 th and General Registration opens May 10 th , 2023.