Triathlon Calendar United States 2025-2026

Jun

12

Thursday

Cedar Lake Triathlon Series

Chester, Connecticut

Triathlon

The Cedar Lake Triathlon Series in Chester, CT offers a competitive yet accessible race experience with limited participant fields. The event features Sprint and Super Sprint distances, including indi..

Jun

14

Saturday

Cal Tri Castaic Lake

Castaic, California

Triathlon

The 2025 Cal Tri Castaic Lake event, taking place at Castaic Lake in California, features a variety of triathlon and running events suitable for all ages and skill levels. Participants can choose from..

Jun

14

Saturday

Conneaut Lake Triathlon

Conneaut Lake, Pennsylvania

Triathlon

The Conneaut Lake Sprint Triathlon, hosted by ALFA Endurance, is set to take place in Conneaut Lake, Pennsylvania. This event features both individual and relay sprint triathlons, comprising a 650-yar..

Jun

14

Saturday

Ironman 70.3 Boulder

Boulder, Colorado

Triathlon

Jun

14

Saturday

Three Lakes Triathlon and San Juan Island Run

Friday Harbor, Washington

Triathlon

The Three Lakes Triathlons and Kings Market San Juan Island Runs is an exciting all-sport weekend event set in the picturesque Lakedale Resort on San Juan Island, WA. Scheduled for June 14, 2025, the..

Jun

14

Saturday

Lake Frances Triathlon

Valier, Montana

Triathlon

The Lake Frances Triple P Triathlon is a dynamic event taking place at Lake Frances in Valier, Montana. This triathlon features three segments: a 1.5-mile kayak leg, a 12-mile bike leg, and a 3-mile r..

Jun

14

Saturday

Tri Star Olympic Triathlon

Knoxville, Tennessee

Triathlon

The Tri Star Olympic Triathlon is a multi-sport event taking place in Knoxville, TN, featuring a variety of races including individual and relay options for both sprint and Olympic distances. Particip..

Jun

14

Saturday

Stafford Race for HOPE Triathlon

Manahawkin, New Jersey

Triathlon

The Stafford Race for HOPE Triathlon, Duathlon, and Aquabike is a multi-sport event taking place at Manahawkin Lake Park in New Jersey. Scheduled for June 14, 2025, the event features various competit..

Jun

14

Saturday

Lander Reverse Triathlon

Lander, Wyoming

Triathlon

The 2025 Lander Reverse Triathlon is an exciting event scheduled for June 14, 2025, in Lander, Wyoming. This unique triathlon features a reverse format, where participants start with a swim, followed..

Jun

14

Saturday

Wet Dog Triathlon

Decatur, Alabama

Triathlon

The Wet Dog Triathlon, taking place at Point Mallard Park in Decatur, Alabama, is a celebrated event that marks its 24th year in 2025. This triathlon features a 400-meter open water swim, a 15k bike r..

Jun

14

Saturday

Payson Orchards Triathlon

Payson, Utah

Triathlon

The Payson Orchards Triathlon, scheduled for June 14, 2025, in Payson, Utah, features a scenic sprint triathlon, a 12 and under super-sprint triathlon, and a 5K walk/run. Known for its picturesque cou..

Jun

14

Saturday

Ticonderoga Triathlon Festival

Ticonderoga, New York

Triathlon

The Ticonderoga Triathlon Festival, set in the scenic town of Ticonderoga, NY, features a variety of events including Sprint and Olympic Triathlons, AquaBike races, and the unique Double Ti challenge,..

Jun

14

Saturday

Kids Rock Triathlon

Penllyn, Pennsylvania

Triathlon

The 10th Annual Scoogie Events Kids Rock Triathlon & Duathlon is set to take place in Penllyn, PA, on June 14, 2025. This exciting event is designed for children aged 5 to 15, featuring both triathlon..

Jun

14

Saturday

Against the Tide Hopkinton

Hopkinton, Massachusetts

Triathlon

Against the Tide Hopkinton is a family-friendly, multi-sport event held at Hopkinton State Park in Hopkinton, Massachusetts. Benefiting the Massachusetts Breast Cancer Coalition (MBCC), the event supp..

Jun

14

Saturday

San Juan Trail Triathlon

Ridgway, Colorado

Triathlon

The San Juan Trail Triathlon, scheduled for June 14, 2025, takes place in the scenic Ridgway State Park, Colorado. This exciting event features a combination of a 6k trail run, a 3k stand-up paddle (S..

Jun

14

Saturday

Strokes, Spokes and Strides

Waynesboro, Pennsylvania

Triathlon

Strokes, Spokes and Strides is a vibrant sprint distance triathlon held in Waynesboro, Pennsylvania, designed to foster community spirit and inclusivity among athletes of all levels. Established in 20..

Jun

14

Saturday

Black Butte Triathlon

Corning, California

Triathlon

The Black Butte Triathlon is set to take place on June 14, 2025, in Corning, California. This exciting event features three race options: an Olympic Distance Triathlon, a Sprint Distance Triathlon, an..

Jun

14

Saturday

Pat Griskus Olympic Triathlon

Middlebury, Connecticut

Triathlon

The Pat Griskus Olympic, Du, Sprint Triathlon is a well-established multi-sport event held at Quassy Amusement Park in Middlebury, Connecticut. Originating in 1987, the event features various race for..

Jun

14

Saturday

The Prairie Triathlon

Roscoe, Illinois

Triathlon

The Prairie Triathlon at NorthPointe is a dynamic event scheduled for June 14, 2025, in Roscoe, Illinois. This triathlon features a 350-yard swim in a seven-lane pool, followed by a 17-mile bike ride..

Jun

14

Saturday

Wyckoff/Franklin Lakes Triathlon

Franklin Lakes, New Jersey

Triathlon

The Wyckoff/Franklin Lakes Triathlon is a competitive event scheduled for June 14, 2025, in Franklin Lakes, NJ. Participants can choose between an individual triathlon or a relay team format. The race..