Triathlon Calendar United States 2025-2026

Aug

8

Saturday

Summer Sizzler - Grand Island

Grand Island, New York

Triathlon

Aug

8

Saturday

Kill Creek Park Triathlon

Olathe, Kansas

Triathlon

Aug

8

Saturday

Twin Lakes Triathlon

Manson, Iowa

Triathlon

Dive into summer at the Twin Lakes Triathlon at Twin Lakes Bible Camp in Manson IA on August 8, 2026, with Sprint and Super Sprint courses for individuals and teams. Chip timed races, awards, breakfast and lakeside fun make a great race day.

Aug

8

Saturday

Brigantine Beach Triathlon

Brigantine, New Jersey

Triathlon

Aug

8

Saturday

Lake Max Triathlon

Culver, Indiana

Triathlon

Aug

9

Sunday

YWCA Minneapolis Women's Triathlon

Minneapolis, Minnesota

Triathlon

Aug

9

Sunday

Atlantic City Triathlon

Atlantic City, New Jersey

Triathlon

Atlantic City Triathlon takes place at Bader Field in Atlantic City, New Jersey. The event offers Sprint and Olympic distance options, plus Aquabike and Relay formats. Sprint courses feature a .25 mile swim, 11 mile bike, and a 5K run, while the Olym..

Aug

9

Sunday

Hermosa Beach Triathlon

Hermosa Beach, California

Triathlon

Kick off triathlon season at the beginner friendly Hermosa Beach Triathlon on Sunday, August 9, 2026. Enjoy a scenic ocean swim, coastal bike and run with a finish right on the Pacific shoreline and lively Pier Avenue nearby.

Aug

9

Sunday

Riverbluff Triathlon

Ashland City, Tennessee

Triathlon

Aug

9

Sunday

Cool Sommer Mornings 5K Series

Clermont, Florida

Triathlon 5 km

Join Cool Sommer Mornings in Clermont on Aug 9, 2026 for multisport racing from sprint to international distances, plus a 5K and virtual options. Finishers get a tech shirt and custom medal. Complete the series to earn a bonus fifth medal.

Aug

12

Wednesday

Hudson Valley Triathlon Club Summer Tri Series

Mount Tremper, New York

Triathlon

Cap the summer series with a scenic Super Sprint tri or AquaBike at Kenneth L. Wilson Park, featuring a mountain lake swim, hilly bike and a trail run. USAT sanctioned, points decide season champions and the event runs rain or shine.

Aug

15

Saturday

Tamarac Tri

Fremont, Michigan

Triathlon

Join the Tamarac Tri at Fremont Lake Park on August 15, 2026 for a sprint triathlon or relay team option. Enjoy a 750 meter swim, 12.4 mile bike and 5K run along scenic lakeside roads and trails.

Aug

15

Saturday

The Great Loon Triathlon

Lincoln, Maine

Triathlon

The Great Loon Triathlon at Lake Mattanawcook offers sprint to half Ironman races and duathlon options with relays. Postponed to a new date TBD; registered athletes keep entry or can transfer to other Lifestyle Sports Global events.

Aug

15

Saturday

Miles Perret Cancer Services Triathlon

Lafayette, Louisiana

Triathlon

Aug

16

Sunday

Tri CLE

Cleveland, Ohio

Triathlon

Aug

16

Sunday

Michigan Titanium

Grand Rapids, Michigan

Triathlon

Aug

16

Sunday

Greenfields Tri

West Deptford, New Jersey

Triathlon

Races for every level at Greenfields Tri/Aqua/Du/5K & Splash and Dash. USAT sanctioned with chip timing, finisher medals and free photos for a fun day of swim, bike and run for adults and kids.

Aug

22

Saturday

Glimmerglass Triathlon

Cooperstown, New York

Triathlon

Join the Glimmerglass Triathlon at Glimmerglass State Park in Cooperstown for a scenic paddle, bike and 5K run around Otsego Lake and the Hyde Hall grounds. Solo racers and team relays welcome for a fun multisport challenge with finisher perks.

Aug

22

Saturday

Buster Britton Memorial Triathlon

Pelham, Alabama

Triathlon

Aug

22

Saturday

Loggerhead Triathlon

Jupiter, Florida

Triathlon

Enjoy a coastal challenge at the Tampa General Hospital Loggerhead Triathlon in Carlin Park, Jupiter. Ocean swim plus scenic bike and run courses welcome individuals, relays and first timers aged 14 to 99.