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

2025 Utah and Western States (ID, WY, MT, NV, CO, AZ, CA, NM) Triathlon, Duathlon, and Multisport Event Calendar

July 11, 2025Moonlight Triathlon, Price, UT, The light from the moon will guide you. First, your kids will start at 8:00 pm. They will swim from the deep end to the shallow end, then run one lap around Washington Park, and do two laps on their bikes. The normal triathlon will start at 10:00 pm. You will run a 3-mile running course�, then hop on your glowstick-covered bike (helmets and bike lights are required), and ride a 12-mile�bike course.�Lastly, you will run into the wave pool and swim 300 yards. When you finish, there will be refreshments, and you will get your medal., Joel Seeley, joelseeley2010@gmail.com, facebook.com/people/Moonlight-Triathlon/61556731479450/

July 12, 2025Echo 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?, race@triutah.com, triutah.com

July 12, 2025Logan Tri, Logan, UT, Sprint and Olympic, Joe Coles, 801-335-4940, joe@onhillevents.com, onhillevents.com

July 12, 2025Rigby 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, TriPeaksEpicEvents@gmail.com, Brian Magleby, 208-520-9400, TriPeaksEpicEvents@gmail.com, tripeaksevents.com

July 13, 2025Boulder Peak Triathlon, Boulder, CO, Sprint and Olympic distances, at Boulder Reservoir, Triathlon, Duathlon, Aquabike, Lance Panigutti, 303-408-1195, lance@withoutlimits.com, withoutlimits.co

July 19, 2025Tri Boulder, Boulder, CO, Long Course, Olympic, Sprint, Duathlon, Aquabike, & Relays. One of the most popular summer triathlons in Colorado, Travis Campbell, info@bbscendurance.com, bbscendurance.com

July 20, 2025Ironman 70.3 Salem, Salem, OR, 70.3 mile course, Ironman , boulder70.3@ironman.com, ironman.com

July 26, 2025Ironman Boise 70.3, Boise, ID, 1.2 mile swim, 56 mile bike, 13.1 mile run., Ironman , boulder70.3@ironman.com, ironmanboise.com

July 26, 2025Burley 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, info@spudman.org, spudman.org

July 26-27, 2025Donner Lake Triathlon, Truckee, CA, Half Triathlon 70.3, Olympic Triathlon, Sprint Triathlon, Kids Triathlon, Aquabike, Aquathlon Duathlon, Todd Jackson, 530-546-1019, todd@bigblueadventure.com, Kiley McInroy, kiley@bigblueadventure.com, bigblueadventure.com, donnerlaketri.com

July 27, 2025Steamboat Lake Triathlon, Steamboat Lake, CO, Sprint Distance Triathlon, Aquabike,�& Stand-Up Paddle-Board Options at Steamboat Lake, Lance Panigutti, 303-408-1195, lance@withoutlimits.com, withoutlimits.co

August 2, 2025TriathaMom, Riverton, UT, Women only triathlon at the Riverton Country Pool. 300 yard swim, 12 mile bike ride, and 5k run. Carnival style cheering section provided for families of participants., Perry Hacker, 801-613-2116, contact@ustrisports.com, gotriathamom.com

August 9, 2025East 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?, race@triutah.com, triutah.com

August 9, 2025Rocky 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, info@bbscendurance.com, bbscendurance.com

August 10-October 1, 2025COEUR Outdoor Divas Triathlon, Longmont, CO, Union Reservoir, Sprint, women only triathlon, Lance Panigutti, 303-408-1195, lance@withoutlimits.com, withoutlimits.co

August 16, 2025Stansbury Days Triathlon, Stansbury Park, UT, Sprint triathlon, unofficial distances: Swim 500m, Bike 20k, Run 5k. Start 7 AM. Swim is open water in Stansbury Lake, starts at Stansbury Park Club House, Lisa & Dan Bergantz, stansburytri@gmail.com, stansburypark.gov/stansbury-day-triathlon

August 16, 2025Tahoe 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, todd@bigblueadventure.com, Kiley McInroy, kiley@bigblueadventure.com, bigblueadventure.com, greattrailrace.com

August 16, 2025Great 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, TriPeaksEpicEvents@gmail.com, Brian Magleby, 208-520-9400, TriPeaksEpicEvents@gmail.com, tripeaksevents.com

August 23, 2025Boulder 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, info@bbscendurance.com, bbscendurance.com

August 23-24, 2025Lake 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, todd@bigblueadventure.com, Kiley McInroy, kiley@bigblueadventure.com, bigblueadventure.com

September 1, 2025Murray 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, jo@agegroupsports.com, mcreg.com, murray.utah.gov

September 1, 2025South 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, john@southdavisrecreation.com, Cindy Hunt, 801-298-6220, cindy@southdavisrecreation.com, southdavisrecreation.com, southdavisraces.com

September 5, 2025Brineman 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?, race@triutah.com, triutah.com

September 6, 2025Littlefoot 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, lance@withoutlimits.com, withoutlimits.co

September 7, 2025Ironman 70.3 Santa Cruz, Santa Cruz, CA, 70.3 mile course, Ironman , boulder70.3@ironman.com, ironman.com

September 12-13, 2025Master 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, Jared.Chatterley@trinidad.co.gov, purg4.com

September 13, 2025XTERRA 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, todd@bigblueadventure.com, Kiley McInroy, kiley@bigblueadventure.com, bigblueadventure.com/event/xterra-lake-tahoe/, xterraplanet.com

September 13-14, 2025The Toughman Half Long Course Triathlon Championships, Stony Point, NY, Long course tri – 1.2 mile swim, 56 mile bike, and 13.1 mile run. Part of the Toughman Series., racetri.com, toughmantri.com

September 13-14, 2025Desert’s Edge Triathlon Festival – Dirt Tri & Road Tri, Fruita, CO, Sprint, Olympic, and Off-Road category options, Grand Junction Sports Commission , 970-248-1378, 970-639-1387, info@grandjunctionsports.org, grandjunctionsports.org/desertsedge

September 13, 2025Bear 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, joe@onhillevents.com, bearlakebrawl.com, onhillevents.com

September 13, 2025Valkyrie 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, info@valkyrierelay.com, valkyrierelay.com

September 13, 2025Harvest 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, info@bbscendurance.com, bbscendurance.com

September 20, 2025Range 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., Jess Lofland, 385-205-1148, jess@sevencanyonstrust.org, sevencanyonstrust.org/events/relay

September 20, 2025Rexburg 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, TriPeaksEpicEvents@gmail.com, Brian Magleby, 208-520-9400, TriPeaksEpicEvents@gmail.com, tripeaksevents.com

September 20, 2025Range-to-River Relay, Salt Lake City, UT, 7.2 mile bike, 3.3 mile paddle, 3.4 mile run. Explore the condition of the Salt Lake Valley’s waterways and learn about recreation in your backyard., Seven Canyons Trust , info@sevencanyonstrust.org, sevencanyonstrust.org/events/range-river-relay

September 21, 2025Oktoberfest Triathlon, Longmont, CO, Union Reservoir, Sprint, Lance Panigutti, 303-408-1195, lance@withoutlimits.com, withoutlimits.co

September 21, 2025Ironman 70.3 Washington Tri-Cities, Richland, WA, 70.3 mile course, Ironman , boulder70.3@ironman.com, ironman.com

September 27, 2025Kokopelli Triathlon, Hurricane, UT, Olympic, Sprint, Duathlon, Aquabike, Relays, 10K & 5K. A family-friendly event at Sand Hollow Reservoir with something for everyone, Travis Campbell, info@bbscendurance.com, bbscendurance.com

October 4, 2025Las 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, info@bbscendurance.com, bbscendurance.com

October 4-5, 2025Nevada Senior Games Triathlon, Las Vegas, NV, Sprint race . It is the Nevada Senior Games’ official state triathlon championship and qualifier for the 2025 National Senior Games. Open to triathletes ages 50 and better! 750-meter lake swim, 12.4-mile bike, 5K run within Lake Mead NRA. NVSG athletes receive 20% discount on Las Vegas Triathlon sprint race registration. Medals for top 3 finishers in each 5-year age group beginning at 50 (eligible for BBSC awards, too!). Registration opens Apr. 1., Bonnie Parrish-Kell, 702-373-5293 , nvsg-tri-run@slowpokedivas.com, NevadaSeniorGames.com

October 11, 2025Huntsman 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, hello@seniorgames.net, seniorgames.net

October 11, 2025Ironman World Championship, Kailua-Kona, HI, 140.6 miles, Ironman , boulder70.3@ironman.com, ironman.com

October 19, 2025Ironman California, Sacramento, CA, 2.4-mile swim, 112-mile bike course, 26.2 mile run, Ironman , boulder70.3@ironman.com, ironman.com

October 25, 2025Southern 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, joe@onhillevents.com, southernutahtriathlon.com, onhillevents.com

October 25, 2025Pumpkinman 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, info@bbscendurance.com, bbscendurance.com

November 16, 2025Ironman Arizona, Paradox, AZ, 2.4-mile swim, 112-mile bike course, 26.2 mile run, Ironman , boulder70.3@ironman.com, ironman.com

December 7, 2025Ironman 70.3 Indian Wells La Quinta, Indian Wells, CA, 70.3 mile course, Ironman , boulder70.3@ironman.com, ironman.com

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