Triathlon Calendar United States 2026-2027

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Explore the best triathlons in the United States for 2026-2027! Our updated list features 582 exciting races across the country. Find your next race in the United States below and join the running community at these great events!

July 2027
A multi event day in Rockford, Illinois on July 18, 2027 featuring an 18 mile duathlon, a 2 mile run, and a 2 mile ruck with specified loads. A short free post race fitness challenge is included for participants.
Triathlon at Mercer County Park on July 18, 2027 offering Sprint, Olympic and SuperSprint distances with a lake swim, bike and park run plus a finish line festival.
USAT sanctioned triathlon in Ballwin featuring a 300 yard swim, 9 mile bike and 3.4 mile run with single, relay, and double formats on July 18, 2027.
A multi-event triathlon day at Jamestown Beach Event Park on July 18, 2027, offering 12 sprint and Olympic race options including swim, bike, run, and combined formats.
A community-focused triathlon in Helena with a 500 m pool swim, a 10 mile bike on mixed surfaces, and a 3 mile run through Centennial Park.
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Triathlon at Lake Rebecca Park Reserve in Rockford, MN on July 18, 2027 with Sprint and Mini courses around a clear non motorboat lake and spectator parking.
Sprint triathlon and 5K in Denton on July 18 2027 with individual, team and 3 person relay divisions, awards, and finisher items.
Green Lake Triathlon on July 18, 2027 at Deacon Mills Park offers sprint and Olympic individual and relay races plus a Wisconsin Triathlon Series entry.
Race day at Barlow Lake in Middleville MI featuring Olympic, Sprint and Super Sprint triathlons plus duathlons, aquabikes, relays and swim only events.
A half distance triathlon in Sandusky with a ferry swim start on Lake Erie, a fast and flat 56 mile bike, and a 13.1 mile run through historic downtown.
A half distance triathlon in Salem, Oregon with a downriver Willamette swim, a 56 mile bike through wine country and a 13.1 mile run on park and riverfront trails.
A youth triathlon at Pierson Park featuring a pool swim, closed bike loop, and park run with two course lengths for ages 6 to 16.
A multisport weekend at Millennium Park with Sprint and Olympic triathlons, duathlon, aquabike, relay teams, kids races, professional timing, and charity fundraising.
Multi-distance triathlon at Lake Springfield on July 24, 2027 featuring sprint, Olympic and half distances plus aquabike and relay options, USAT sanctioned.
A lakeside triathlon in Guntersville AL offering sprint and Olympic distances with a time trial swim, mostly flat bike course, and a paved run along Lake Guntersville.
Swim run at Folsom Lake with short and long courses that start and end with swims, individual and two person team options, included gear and a post race BBQ.
A mixed gender team relay triathlon on Seneca Lake in Geneva NY with four-person teams, short swim bike run legs, and overall plus age-group awards.
Multi-format race in Ozark MO on July 24, 2027 with triathlon, relay triathlon, and duathlon options plus river swim and country bike roads.
IRONMAN 70.3 Boise on July 24, 2027 combines a swim in local waters, a hilly bike through the foothills and a flat run along the Boise River greenbelt.
Olympic distance triathlon in Ennis, Montana with a swim in Ennis Lake, a bike leg that includes an 800 ft climb on Norris Hill, and a final 10 km uphill run to the Pony Bar.
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