TAHOE CITY, Calif. – Get ready for an awesome race season with Big Blue Adventure, the premier organizer of endurance sporting events in North Lake Tahoe. Registration is now open for 20 events designed for athletes of all ages and skill levels. From trail running and mountain biking to triathlons and open-water swims, the 2026 calendar is packed with opportunities to challenge yourself and connect with the vibrant outdoor community. Visit bigblueadventure.com/events for details on all events, discounts, and registration.
The season kicks off May 30 with the dog-friendly Tail Wagger event and wraps up October 17 with the challenging Heart of Gold gravel race benefiting youth mental health in Nevada County.
New Events This Year
New this year, Big Blue Adventure is introducing several exciting additions, including the reimagined Tahoe 100—revived with a brand-new course—the high-energy Sharkfest swim, and the much-anticipated return of the Champion Points Series.
“There truly is a race for everyone—from the seasoned triathlete, mountain biker, or trail runner to someone who’s decided this is the year they try a new sport,” said Todd Jackson, Big Blue Adventure Founder and President.
Lake Tahoe Mountain and Gravel Biking
Mountain bikers should mark their calendars for the Lake Tahoe Mountain Bike Race on June 20, the Tahoe 100 on July 18, the Great Trail Race on September 26, and Heart of Gold on October 17, each offering a unique way to experience the Sierra’s rugged terrain and high alpine scenery.
Off-road and Multi-Sport Events
Triathletes can choose from several iconic events in Tahoe and Truckee, including the Tahoe Off-Road Triathlon, Donner Lake Triathlon, and Lake Tahoe Triathlon. A highlight for both residents and visitors, the Donner Lake Triathlon on July 25 and 26th features a range of race formats, along with a non-competitive Kids Triathlon for ages 4 to 12.
Tahoe Truckee Running Championships Return
The following weekend, the Truckee Half Marathon and 5K showcases a scenic course through downtown Truckee, culminating in a festive finish that embodies the spirit of Truckee’s community.
Ultra endurance enthusiasts will find their match at the Big Chief 50K and Marlette 50K Trail Run. Experience the thrill of running from Lake Tahoe to Truckee with Big Chief, or tackle the stunning Tahoe Flume Trail with Marlette, offering unparalleled lake views and breathtaking alpine scenery.
Participants can also compete in the Tahoe Truckee Running Championship, featuring a competitive series of 22 races from 5K to 50K, allowing participants to earn points based on their best three finishes.
Open Water Swimming Series in Lake Tahoe and Donner Lake
For those drawn to the water, the Tahoe City Swim, Donner Lake Alpine Swim, Lake Tahoe Open Water Swim, and the Sand Harbor Shark Fest Swim provide unforgettable open water experiences in one of the clearest alpine lakes in the world.
Relay Options
Many events throughout the season offer team and relay options, making it easier to share these experiences with friends while competing together. “Racing as a team not only amplifies the fun but also tailors the competition to your strengths,” added Jackson.
For more information, visit BigBlueAdventure.com.
