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

2026 Utah and Western States (ID, WY, MT, NV, CO, AZ, CA, NM) Triathlon, Duathlon, and Multisport Event Calendar

March 21, 2026Icebreaker 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

March 27, 2026Antelope Island Duathlon, Syracuse, UT, Run Bike Run on the causeway, Joe Coles, 801-335-4940, [email protected], legacyduathlon.com, onhillevents.com

March 28, 2026Ironman 70.3 Oceanside, Oceanside, CA, 70.3 mile course, Ironman , [email protected], ironman.com

April 11, 2026St. 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 18, 2026Leadman 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_

April 25, 2026RAGE Triathlon, Boulder City, NV, Olympic, Sprint, Duathlon, Aquabike, Relays, 10K & 5K. The season starts with this triathlete-favorite race, only minutes from the world-famous Las Vegas Strip, Hoover Dam, and much more, Travis Campbell, [email protected], bbscendurance.com

May 9, 2026South 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, Race Director , 801-298-6220, [email protected], southdavisrecreation.com, southdavisraces.com

May 9, 2026Range 2 River Relay, Salt Lake City, UT, The Range 2 River Relay is an active transportation team race to explore the Salt Lake Valley’s waterways from pristine headwaters to buried creeks and channelized cannel to meandering river. Competitors will bike, boat, and run from the Wasatch Mountains to the Jordan River, showcasing opportunities to connect communities and ecosystems between the two. Bike: 3.6 miles; starting at City Creek Canyon Trailhead ending at Gadsby Trailhead.; Boat: 3.3 miles; starting at Gadsby Trailhead�ending at Northwest Trailhead.; Run: 3.4 miles; starting at Northwest Trailhead�ending at Gadsby Trailhead., Ronnie Passetto, [email protected], sevencanyonstrust.org/events/relay

May 16, 2026Sand Hollow Triathlon, Hurricane, UT, Olympic, Sprint, Duathlon, Aquabike, Relays, 10K & 5K. Bike along scenic sand dunes, and run around a gorgeous, reflective lake, Travis Campbell, [email protected], bbscendurance.com

May 16, 2026Woman 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 24, 2026Ironman Victoria 70.3, Victoria, BC, 1.2 mile swim, 56 mile bike, 13.1 mile run., Ironman , [email protected], ironmanboise.com

May 30, 2026Ironman 70.3 Hawaii, Kohala Coast, HI, 70.3 mile course, Ironman , [email protected], ironman.com

May 31, 2026Harvest Moon Triathlon, Boulder, CO, Long Course, Olympic, Duathlon, Aquabike, & Relays. Celebrating its 26th year at the beautiful Boulder Reservoir for beginners and veterans alike, Travis Campbell, [email protected], bbscendurance.com

June 6, 2026Colorado Triathlon, Boulder, CO, Sprint and Olympic distances, at Boulder Reservoir, Lance Panigutti, 303-408-1195, [email protected], withoutlimits.co

June 6, 2026Treasure Valley Triathlon, Boise, ID, The Treasure Valley Tri is the largest adaptive triathlon in the western United States! This crit-style race offers a thrilling experience, with the swim taking place in Quinn’s Pond, a scenic bike ride through Garden City, and a run along the greenbelt at Ester Simplot Park. This triathlon is open to participants of all abilities (para-tri friendly!) and includes a Youth Splash and Dash for the kiddos to join the fun, YMCA , [email protected], ymcatvidaho.org, trisignup.com/Race/ID/Boise/TreasureValleyTriathlon

June 13, 2026Ironman 70.3 Boulder, Boulder, CO, 70.3 mile course, Ironman , [email protected], ironman.com

June 20, 2026Jordanelle 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 20, 2026Lory Offroad Triathlon, 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

June 21, 2026Ironman 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, 2026Boulder Sunrise Triathlon, Boulder, CO, Olympic, Sprint, Duathlon, Aquabike, Relays, 10K & 5K. Kick off your summer in the triathlon capital of the country! You’ll be surrounded by amazing views at the foot of the Flatirons, Travis Campbell, [email protected], bbscendurance.com

July 11, 2026Echo 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 11, 2026Logan Tri, Logan, UT, Sprint and Olympic, Joe Coles, 801-335-4940, [email protected], onhillevents.com

July 12, 2026Boulder Peak Triathlon, Boulder, CO, Sprint and Olympic distances, at Boulder Reservoir, Triathlon, Duathlon, Aquabike, Lance Panigutti, 303-408-1195, [email protected], withoutlimits.co

July 12, 2026Ironman 70.3 Ruidoso, Ruidoso, NM, 70.3 mile course, Ironman , [email protected], ironman.com

July 18, 2026Tri Boulder, Boulder, CO, Long Course, Olympic, Sprint, Duathlon, Aquabike, & Relays. One of the most popular summer triathlons in Colorado, Travis Campbell, [email protected], bbscendurance.com

July 19, 2026Ironman 70.3 Salem, Salem, OR, 70.3 mile course, Ironman , [email protected], ironman.com

July 25, 2026Ironman Boise 70.3, Boise, ID, 1.2 mile swim, 56 mile bike, 13.1 mile run., Ironman , [email protected], ironmanboise.com

July 25, 2026Burley 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, 2026Steamboat 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 8, 2026East 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, 2026Rocky Mountain Tri Fest, Boulder, CO, Gravel Sprint & Super Sprint, Kids Tri, Aquabike, & Relays. A day for whole family to swim, bike, and run, Travis Campbell, [email protected], bbscendurance.com

August 16, 2026COEUR Outdoor Divas Triathlon, Longmont, CO, Union Reservoir, Sprint, women only triathlon, Lance Panigutti, 303-408-1195, [email protected], withoutlimits.co

August 28-30, 2026Lake 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

August 29, 2026Boulder Sunset Triathlon, Boulder, CO, Olympic, Sprint, Duathlon, Aquabike, Relays, 10K & 5K. A celebration of summer and a beginner’s favorite all at recently upgraded venue, Travis Campbell, [email protected], bbscendurance.com

September 7, 2026Murray Youth and Family Triathlon, Murray, UT, A youth and novice triathlon for ages 5-85. Distances follow USAT recommendations for each age group. Novice adults compete at the same distance as 11+ age groups. Please see Murray City Recreation, call 801-264-2614, Jo Garuccio, 801-557-6844, [email protected], mcreg.com, murray.utah.gov

September 7, 2026South 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, Race Director , 801-298-6220, [email protected], southdavisrecreation.com, southdavisraces.com

September 12, 2026Littlefoot 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 19, 2026Brineman 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 19, 2026Bear 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 20, 2026Oktoberfest Triathlon, Longmont, CO, Union Reservoir, Sprint, Lance Panigutti, 303-408-1195, [email protected], withoutlimits.co

September 20, 2026Ironman 70.3 Washington Tri-Cities, Richland, WA, 70.3 mile course, Ironman , [email protected], ironman.com

September 26, 2026Kokopelli Triathlon, Hurricane, UT, Olympic, Sprint, Duathlon, Aquabike, Relays, 10K & 5K. A family-friendly event at Sand Hollow Reservoir, Travis Campbell, [email protected], bbscendurance.com

September 26-27, 2026Desert’s Edge Triathlon Series – Dirt Tri & Road Tri, Fruita, CO, Sprint, Olympic, and Off-Road category options, Grand Junction Sports Commission , 970-639-1387, [email protected], grandjunctionsports.org/desertsedge

October 3, 2026Idaho High Mountain Triathlon, Yellow Pine, ID, includes a Triathlon for able-bodied athletes; an Adaptive Triathlon; a Triathlon Relay; an Adaptive Triathlon Relay; and a Mixed Adaptive Relay (where at least one team member is able-bodied), IHM , [email protected], trisignup.com/Race/ID/YellowPine/IdahoHighMountainTriathlon

October 10, 2026Huntsman 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 10, 2026Las Vegas Triathlon, Boulder City, NV, Long Course, Olympic, Sprint, Duathlon, Aquabike, Relays, 10K & 5K. The one and only Long Course event at beautiful Lake Mead and USAT Nevada State Championships for Age Group, High School and Clubs, Travis Campbell, [email protected], bbscendurance.com

October 24, 2026Southern 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 31, 2026Pumpkinman Triathlon, Boulder City, NV, Olympic, Sprint, Aquabike, Relays, 10K & 5K. This ever-popular one-of-a-kind point-to-point race will test your mettle! Starts at Lake Mead and finishes in Boulder City, Travis Campbell, [email protected], bbscendurance.com

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