Kodiak 100 Ultra Marathon

Register for this Aug. 20-21 event!

The 8th annual Kodiak Ultra Marathon will take place August 20-21, 2021 in beautiful Big Bear Lake. Races will start and finish in The Village and circumnavigate the entire Big Bear Valley. This year's event will include a NEW 100K, Half Marathon, and 10K race! See full event info including Crews, Schedules, Course Maps, and more KODIAK100.COM.

Event Dates & Times

100 Mile: 6AM (Aug 20)
100K: 6AM (Aug 20)
Half Marathon: 8AM (Aug 21)
10K: 9AM (Aug 21)


The Village at Big Bear Lake - 40803 Village Drive, Big Bear Lake, CA 92315


100 Mile - Runners will circumnavigate the entire Big Bear Valley as they trek through Siberia Creek Canyon and summit Sugarloaf Mountain at 9,963 feet! There will be 13 Aid Station along the route, including 6 crew-accessible stations. Pacers are permitted starting at Mile 55.8 and are permitted in the 100 mile race only. Visit Big Bear has generously granted the Kodiak a $10,000 prize purse! The Kodiak 100 miler is a 6 point UTMB Qualifier.

100K - Want a taste of the Kodiak without the extremes of climbing Sugarloaf Mountain, Seven Oaks, or crossing Deadman's Ridge? The 100K will start with the 100M race and follow the same course until Mile 59.

Half Marathon & 10K -
Start and finish downtown in the heart of the Big Bear Village. You will head into the forest and start climbing to the high point of the course at 8,000 feet. Enjoy the beautiful single track along the ridge, with amazing views of San Gorgonio peak in the background. The final 3 miles are a downhill cruise along Knickerbocker Fire Road.

Read the 2021 Race Announcement for more details.

Lodging Specials

Big Bear Vacations

Use the promo code KOD10 for 10% off 2 or more nights. Valid through 8/30/21

Big Bear Cool Cabins

Check out the Kodiak special for August 19 - 22.

Robinhood Resort

10% discount offered to anyone associated with or participating in the event


All 100 mile finishers: Kodiak belt buckle100K, Half Marathon, 10K finishers: Custom medal100M Race: Top 3 Overall Male & Female will receive custom carved awards.We are excited to announce the Visit Big Bear prize purse of $10,000!