Utah and Western US Triathlon, Biathlon, Adventure, and Multisport Calendar (UT, ID, MT, NV, AZ, CO, WY, NM)

March 22, 2025 — Icebreaker Sprint Triathlon & 5K, Tri Utah, American Fork, UT, Kick-off the Utah Triathlon season at the American Fork Rec Center. The IceBreaker is for athletes of all abilities! Post race breakfast and pictures with the TriUtah Yeti, Dan Aamodt, 385-228-3454?, [email protected], triutah.com

April 4, 2025 — Antelope Island Duathlon, Syracuse, UT, Run Bike Run on the causeway, Joe Coles, 801-335-4940, [email protected], legacyduathlon.com, onhillevents.com

April 5, 2025 — Ironman 70.3 Oceanside, Oceanside, CA, 70.3 mile course, Ironman , [email protected], ironman.com

April 12, 2025 — St. George Triathlon, St. George, UT, Beginner, Sprint, and Tuff Kids races, starting between 9 am and 2 pm. Indoor swim, outdoor route for run and bike legs. Cap of 300 each category., Aaron Metler, 435-627-4054, [email protected], sgcity.org/sportsandrecreation/races

April 19, 2025 — Leadman Ski Bike Run, Kellogg, ID, Competitors run about 200 ft to click into their gear for an approximate 1 mile ski/board to the mountain bike transition point. After the 7 to 11 mile bike ride the racers take off for a 4 to 5 mile run to the finish line at Gondola Village at Silver Mountain Resort., Kellogg Rotary Club, 208-783-1524, , Sliver Mountain , [email protected], silvermt.com/upcoming-events/details/leadman_

May 10, 2025 — South Davis Splash N Sprint Triathlon, South Davis Racing Series, Bountiful, UT, Sprint starts at 7:45, Swim 350 yds; Bike 12.02 mi; Run 5k, relay: Split the Sprint between 2-3 racers, Novice: Swim 150 yds; Bike 2.4 mi; Run 1.5 mi, Be at the start before 8:45am Location: South Davis Recreation Center; 550 N 200 W, John Miller, 801-298-6220, [email protected], Cindy Hunt, 801-298-6220, [email protected], southdavisrecreation.com, southdavisraces.com

May 10, 2025 — Ironman 70.3 St. George North American Championship, St. George, UT, Start: Sand Hollow reservoir. Bike through Snow Canyon State Park, Finish Downtown St. George, Ironman , 303-444-4316, [email protected], Kevin Lewis, 435-986-6615, [email protected], ironmanstgeorge.com

May 17, 2025 — RAGE Triathlon, BBSC Double Down Series, Boulder City, NV, Featuring an Olympic, Sprint, Relay, DU, Aquabike, 10k and 5k. Located less than ten miles to famous vacation destinations, including the Las Vegas Strip and Hoover Dam. This race sells out at 1,300 athletes and is a favorite in the southwest, as it attracts athletes from all over the globe!, Craig Towler, 318-518-7303, [email protected], Michelle Lund, [email protected], bbsctri.com

May 24, 2025 — Woman of Steel Triathlon & 5K, TriUtah, American Fork, UT, Utah’s first and most popular all-womens triathlon located in American Fork, Utah. Join us as we celebrate the strong women we love with a great venue. New this year is the 5k and we’re feeding you breakfast, Dan Aamodt, 385-228-3454?, [email protected], triutah.com

May 25, 2025 — Ironman Victoria 70.3, Victoria, BC, 1.2 mile swim, 56 mile bike, 13.1 mile run., Ironman , [email protected], ironmanboise.com

May 31, 2025 — Sand Hollow Triathlon, BBSC Tri Series, Hurricane, UT, The first race of the Twin Tri series at Sand Hollow State Park, with Sprint, Olympic, Du, Aquabike, 10k, and 5k distances. Bike along scenic sand dunes, and run around a gorgeous, reflective lake., Craig Towler, 318-518-7303, [email protected], Michelle Lund, [email protected], bbsctri.com

May 31, 2025 — Ironman 70.3 Hawaii, Kohala Coast, HI, 70.3 mile course, Ironman , [email protected], ironman.com

June 7, 2025 — Colorado Triathlon, Boulder, CO, Sprint and Olympic distances, at Boulder Reservoir, Lance Panigutti, 303-408-1195, [email protected], withoutlimits.co

June 14, 2025 — Jordanelle Triathlon, TriUtah Points Series, Park City, UT, 22nd annual, Enjoy everything from the wildlife and boardwalks on the river bottoms in Rock Cliff Recreation Area at Jordanelle to the local country backdrop of the towns of Francis and Woodland., Dan Aamodt, 385-228-3454?, [email protected], triutah.com

June 14, 2025 — Ironman 70.3 Boulder, Boulder, CO, 70.3 mile course, Ironman , [email protected], ironman.com

June 21, 2025 — XTERRA Lory, XTERRA America Tour, Bellvue, CO, 1/2 mile swim in the clear waters of Horsetooth Reservoir (Eltuk Bay), then a 2-Lap (beginner friendly) 12.2 mile single-track bike over rolling terrain, and across valley bridges at Lory State Park. Finish things off with a fun and challenging 4.8 mile (8k) run through the clouds on single-track trails!, Lance Panigutti, 303-408-1195, [email protected], withoutlimits.co/#!__xterra-lory

June 21, 2025 — Blackfoot Kicker Triathlon, TRI Peaks Events, Jensen Grove, ID, Sprint, Olympic triathlon, Mike Taylor, 208-201-6269, [email protected], Brian Magleby, 208-520-9400, [email protected], tripeaksevents.com

June 22, 2025 — Ironman 70.3 Coeur D’Alene, Coeur D’Alene, ID, Begins with a 1.2 mile swim in Lake Coeur d’Alene.A 56-mile winding bike course follows with the run loop along the shores of the lake to finish., 303-444-4316, [email protected], ironman.com/im703-coeur-dalene

June 28, 2025 — XTERRA Lake Tahoe Off-Road Triathlon, Tahoe City, CA, The swim occurs in one of the clearest, cleanest, and deepest lakes in North America, Lake Tahoe. Tahoe City is also home to some of the area’s most treasured mountain biking trails. The bike course features single track and double track, fields of wildflowers, and breathtaking Sierra views. The races start and finish is at Commons Beach on the shore of Lake Tahoe., Todd Jackson, 530-546-1019, [email protected], Kiley McInroy, [email protected], bigblueadventure.com, adventuresportsweektahoe.com/compete/tahoe-off-road-triathlon/

June 29, 2025 — Boulder Sunrise Triathlon, Boulder, CO, Join us in celebrating the start of summer in the triathlon capital of the country, Boulder, CO. An athlete favorite with its breath-taking sunrise swim, fast bike and smooth run course, all with the flatirons painted in the background.�Includes olympic, sprint, Relay, duathlon, Aquabike, 10k, and 5k., Craig Towler, 318-518-7303, [email protected], Michelle Lund, [email protected], bbsctri.com

July 12, 2025 — Echo Triathlon, TriUtah Points Series, Coalville, UT, 20th Annual. Warm July temperatures, a scenic ride in Utah’s unique Echo Canyon, and a run on the Historic Rail Trail makes for the perfect event for both seasoned athletes and beginners. 600 rider cap., Dan Aamodt, 385-228-3454?, [email protected], triutah.com

July 12, 2025 — Logan Tri, Logan, UT, Sprint and Olympic, Joe Coles, 801-335-4940, [email protected], onhillevents.com

July 12, 2025 — Rigby Lake Rumble Triathlon, TRI Peaks Events, Rigby, ID, Held at Jefferson County Lake in Rigby. Sprint, Olympic, and triathlon This race is the second in a 3 race series happening in Eastern Idaho, Mike Taylor, 208-201-6269, [email protected], Brian Magleby, 208-520-9400, [email protected], tripeaksevents.com

July 13, 2025 — Boulder Peak Triathlon, Boulder, CO, Sprint and Olympic distances, at Boulder Reservoir, Triathlon, Duathlon, Aquabike, Lance Panigutti, 303-408-1195, [email protected], withoutlimits.co

July 19, 2025 — Tri Boulder, BBSC Twin Tri Series, Boulder, CO, One of the fastest growing triathlons in Colorado. Challenge yourself at mile high elevation, Sprint, Olympic, and Half distances., Craig Towler, 318-518-7303, [email protected], Michelle Lund, [email protected], bbsctri.com

July 20, 2025 — Ironman 70.3 Salem, Salem, OR, 70.3 mile course, Ironman , [email protected], ironman.com

July 26, 2025 — Ironman Boise 70.3, Boise, ID, 1.2 mile swim, 56 mile bike, 13.1 mile run., Ironman , [email protected], ironmanboise.com

July 26, 2025 — Burley Idaho Lions Spudman Triathlon, Burley, ID, Starts at 7 am with the world’s fastest 1.5K swim (current-aided) then a 40K Bike and 10K run., Cade Richman, [email protected], spudman.org

July 26-27, 2025 — Donner Lake Triathlon, Truckee, CA, Half Triathlon 70.3, Olympic Triathlon, Sprint Triathlon, Kids Triathlon, Aquabike, Aquathlon Duathlon, Todd Jackson, 530-546-1019, [email protected], Kiley McInroy, [email protected], bigblueadventure.com, donnerlaketri.com

July 27, 2025 — Steamboat Lake Triathlon, Steamboat Lake, CO, Sprint Distance Triathlon, Aquabike,�& Stand-Up Paddle-Board Options at Steamboat Lake, Lance Panigutti, 303-408-1195, [email protected], withoutlimits.co

August 9, 2025 — East Canyon Triathlon, TriUtah Points Series, Morgan City, UT, 10th Annual. This race boasts stunning scenery, a fast, technical bike course, and hometown hospitality like no other; with both Sprint and Olympic distance races to choose from. 2-transition point-to-point race, Begins at the beautiful East Canyon Reservoir. �The Sprint bike is downhill and fast (please stay safe and in control at all times.) The Olympic bike course has two short but challenging hills followed by a fast descent into Morgan City. Both distances offer a cool, scenic run along the Weber River and local neighborhoods., Dan Aamodt, 385-228-3454?, [email protected], triutah.com

August 9, 2025 — Rocky Mountain Tri Fest, BBSC Triathlon Series, Boulder, CO, Gravel and Kids Triathlons, Craig Towler, 318-518-7303, [email protected], Michelle Lund, [email protected], bbsctri.com

August 10-October 1, 2025 — COEUR Outdoor Divas Triathlon, Longmont, CO, Union Reservoir, Sprint, women only triathlon, Lance Panigutti, 303-408-1195, [email protected], withoutlimits.co

August 16, 2025 — Tahoe Adventure Challenge, Truckee, CA, A multi-sport event in which teams and individuals participate and compete in kayaking or stand up paddling, mountain biking, trail running, and navigation. Designed such that participating teams will complete in an 8 hour maximum time format. Teams travel on land and lake to gather as many checkpoints as possible and finish within the 8 hour time limit., Todd Jackson, 530-546-1019, [email protected], Kiley McInroy, [email protected], bigblueadventure.com, greattrailrace.com

August 16, 2025 — Great Snake River Triathlon, TRI Peaks Events, Idaho Falls, ID, Held at Snake River Landing in downtown Idaho Falls. This triathlon will include BOTH Sprint & Olympic distances. This race will be the final race in Eastern Idaho�the third in the TRIFECTA SERIES produced by Tri Peaks Epic Events., Mike Taylor, 208-201-6269, [email protected], Brian Magleby, 208-520-9400, [email protected], tripeaksevents.com

August 23, 2025 — Boulder Sunset Triathlon, Boulder, CO, Summer may be coming to an end, but our tri season is still heating up! Join us at the Boulder Reservoir for the 13th Annual Boulder Sunset Triathlon, a local favorite.�Includes olympic, sprint, duathlon, Aquabike, 10k, and 5k., Craig Towler, 318-518-7303, [email protected], Michelle Lund, [email protected], bbsctri.com

August 23-24, 2025 — Lake Tahoe Triathlon, Tahoma, CA, Offers a truly beautiful and challenging experience.�Half Triathlon, 70.3, Olympic Triathlon, Sprint Triathlon, Duathlon, Aquabike, Todd Jackson, 530-546-1019, [email protected], Kiley McInroy, [email protected], bigblueadventure.com

September 1, 2025 — South Davis Labor Day Triathlon, South Davis Racing Series, Bountiful, UT, Now a virtual race! Start at 8:00 am, Swim 350 yds; Bike 12.02 mi; Run 5k, relay: Split the Sprint between 2-3 racers, Novice: Swim 150 yds; Bike 2.5 mi; Run 1.5 mi Novices start at: 8:45am Location: South Davis Recreation Center; 550 N 200 W, John Miller, 801-298-6220, [email protected], Cindy Hunt, 801-298-6220, [email protected], southdavisrecreation.com, southdavisraces.com

September 5, 2025 — Brineman Triathlon, TriUtah Points Series, Syracuse, UT, 6th annual. This event not only boasts a spectator friendly swim, a bike course you’ve only dreamt of and a fast/ flat run, but this year it’s also the home of the first ever Olympic Course Utah State Triathlon Championship. Sprint, Olympic, and Long Courses, Dan Aamodt, 385-228-3454?, [email protected], triutah.com

September 6, 2025 — Littlefoot Triathlon, Lakewood, CO, Enjoy a fun late season tri at beautiful Bear Creek Lake Park in a land before time. Set at the base of the foothills, the Triathlon starts off with a 750 meter swim in Big Soda Lake, with water temps expected to be approximately 70 degrees. Next, a rolling 15K bike ride on smooth paved roads that covers nearly the entire park, offering great views throughout! Finish it up with a scenic 5K run on a bike path that winds through the park, Lance Panigutti, 303-408-1195, [email protected], withoutlimits.co

September 7, 2025 — Ironman 70.3 Santa Cruz, Santa Cruz, CA, 70.3 mile course, Ironman , [email protected], ironman.com

September 12-13, 2025 — Master of the Mountains Relay, Raton, NM, Trail run (approx. 6 miles), Paddling (approx. 3 miles), Biking (approx. 15 miles on rugged dirt roads), Shooting Course (shotgun), Jared Chatterley, 719-680-4078, [email protected], purg4.com

September 13, 2025 — XTERRA Lake Tahoe, XTERRA America, Incline Village, NV, XTERRA, Sprint, and Duathlon. Course Distance: Full Course: 2X 750 meter swim laps with a 50 meter beach run, 22 mile bike, 6 mile run. Bike Tunnel Creek, and then onto the Flume Trail, which overlooks Lake Tahoe to the Tahoe Rim Trail. Both the Short and Long course complete the 22 mile bike, approximately 4000 feet of climbing. The trail running course is relatively flat, fast and scenic., Todd Jackson, 530-546-1019, [email protected], Kiley McInroy, [email protected], bigblueadventure.com/event/xterra-lake-tahoe/, xterraplanet.com

September 13, 2025 — Bear Lake Brawl Triathlon, St. Charles, ID, Bluest water in Utah and Idaho. This is often called the Caribbean of the rockies. The course will go around the lake again for the Half and Full. This course is primarily flat with rolling hills., Joe Coles, 801-335-4940, [email protected], bearlakebrawl.com, onhillevents.com

September 13, 2025 — Valkyrie Multisport Relay, Park City, UT, Spans nearly 100 miles of Utah’s spectacular Wasatch Back mountain range. The event pits teams of up to 9 specialized competitors against each other, racing against the clock, and exchanging between trail running, kayak/canoe paddling, marathon, mountain biking, stand-up paddle boarding, open water swimming, and road cycling. Race day consists of four events: Full, Sprint, Marathon, and Half�everything culminating with an all-day Expo (Endurance Sports Summit) at the finish line., Shawn Snow, [email protected], valkyrierelay.com

September 13, 2025 — Harvest Moon Triathlon, BBSC Triathlon Series, Boulder, CO, Half Distance Triathlon: The 25th edition of this event takes place at the beautiful Boulder Reservoir. Est. in 2000 this Colorado classic provides the veterans to beginners a challenging, affordable, and competitive race with a local flavor, Craig Towler, 318-518-7303, [email protected], Michelle Lund, [email protected], bbsctri.com

September 20, 2025 — Rexburg Rush Triathlon, TRI Peaks Events, Rexburg, ID, Held at Wakeside Lake in Rexburg. This triathlon will include BOTH Sprint & Olympic distances. This race is a first in a 3 race series happening in Eastern Idaho�DO THE TRIFECTA in 2023!, Mike Taylor, 208-201-6269, [email protected], Brian Magleby, 208-520-9400, [email protected], tripeaksevents.com

September 21, 2025 — Oktoberfest Triathlon, Longmont, CO, Union Reservoir, Sprint, Lance Panigutti, 303-408-1195, [email protected], withoutlimits.co

September 21, 2025 — Ironman 70.3 Washington Tri-Cities, Richland, WA, 70.3 mile course, Ironman , [email protected], ironman.com

September 27, 2025 — Kokopelli Triathlon, BBSC Triathlon Series, Hurricane, UT, This family-friendly event at Sand Hollow Reservoir has something for everyone! Featuring a Sprint, Olympic, Duathlon, Aquabike, 10k and 5k distances., Craig Towler, 318-518-7303, [email protected], Michelle Lund, [email protected], bbsctri.com

October 4, 2025 — Las Vegas Triathlon, BBSC Double Down Series, Boulder City, NV, The one and only Long course Triathlon, Duathlon and Aquabike is happening�at Lake Mead, featuring iconic views of the lake that cannot be experienced anywhere else.�Featuring a Half, Olympic, Sprint, Duathlon, Aquabike, and 10k, 5k, Boulder Beach, Lake Mead., Craig Towler, 318-518-7303, [email protected], Michelle Lund, [email protected], bbsctri.com

October 11, 2025 — Huntsman World Senior Games Triathlon, St. George, UT, Triathlon. Must be 50 years or older. 450 Meter Outdoor Swim, 20K Bike, 5K Run. It’s the best little triathlon in the world., Jason Ranoa, 800-562-1268, 435-674-0550, [email protected], seniorgames.net

October 11, 2025 — Ironman World Championship, Kailua-Kona, HI, 140.6 miles, Ironman , [email protected], ironman.com

October 19, 2025 — Ironman California, Sacramento, CA, 2.4-mile swim, 112-mile bike course, 26.2 mile run, Ironman , [email protected], ironman.com

October 25, 2025 — Southern Utah Triathlon, Hurricane, UT, Sprint and Olympic. Held at Quail Creek Reservoir, Temps are ideal for triathlons with water temps in the high 60’s to low 70’s and air temps in the 70’s. This venue is truly beautiful with mesas and buttes all around. Enjoy the red rock landscape of Southern Utah., Joe Coles, 801-335-4940, [email protected], southernutahtriathlon.com, onhillevents.com

October 25, 2025 — Pumpkinman Triathlon, BBSC Double Down Series, Boulder City, NV, This point-to-point race starts at Lake Mead and finishes at Wilbur Square in Boulder City. This race will once again host the Rocky Mountain�Collegiate Conference, with an�Olympic wave start for all college athletes., Craig Towler, 318-518-7303, [email protected], Michelle Lund, [email protected], bbsctri.com

November 16, 2025 — Ironman Arizona, Paradox, AZ, 2.4-mile swim, 112-mile bike course, 26.2 mile run, Ironman , [email protected], ironman.com

December 7, 2025 — Ironman 70.3 Indian Wells La Quinta, Indian Wells, CA, 70.3 mile course, Ironman , [email protected], ironman.com