Duathlon Race Calendar in United States

TridelSol Olympic, Sprint & Super Sprint Triathlon, Duathlon, Aquabike, Relay & Swim Only Event

Middleville, Michigan, United States

19 Jul, 2026 (Sun)

$30.00 - $140.00

Triathlon, Duathlon, Aquabike, Swimming, Cycling, Running

Ultra 41.5K 1.5K 40K +8

Tri Millennium

Walker, Michigan, United States

24 Jul, 2026 (Fri) – 25 Jul, 2026

$45.00 - $139.00

Triathlon, Duathlon, Aquabike

25.6K 3.2K 6.4K 29.9K +8

Dragon Fly Triathlon & AquaBike

Sardis, Mississippi, United States

25 Jul, 2026 (Sat)

$55.00 - $140.00

Triathlon, Duathlon

26.5K Half-Marathon Ultra +6

DQ Laurel Lake Triathlon, Duathlon, Aquabike, Aquathlon, & Super Sprint Triathlon in honor of William Laubengeyer *#

Millville, New Jersey, United States

25 Jul, 2026 (Sat)

$75.00 - $135.00

Triathlon, Duathlon, Running, Swimrun

27.9K 30.7K 22.3K 6K +3

Lake Nona Tri-Nona Triathlon Series Race 1

Orlando, Florida, United States

26 Jul, 2026 (Sun)

$129.00 - $159.00

Triathlon, Duathlon, Aquabike

23.2K 24.8K 18.2K

2026 Matt Mason "Cowboy UP" Triathlon/Duathlon

Smithville, Missouri, United States

26 Jul, 2026 (Sun)

$105.00 - $185.00

Triathlon, Duathlon

23.2K 41.2K 25.7K +2

Crescent City Triathlon

Crescent City, California, United States

26 Jul, 2026 (Sun)

$25.00 - $65.00

Triathlon, Duathlon

5K 1.6K +1

2026 Solana Beach Triathlon & Duathlon and Solana Beach 5K

Solana Beach, California, United States

26 Jul, 2026 (Sun)

$40.00 - $240.00

Triathlon, Duathlon, Aquabike, Running

5K 6.4K +2

Game On! Saint Augustine Triathlon

Vilano Beach, Florida, United States

26 Jul, 2026 (Sun)

$139.00 - $289.00

Triathlon, Duathlon, Aquabike

Ultra 40.7K 23.1K 24.3K +3

Top Gun Triathlon

Saint Petersburg, Florida, United States

01 Aug, 2026 (Sat)

$119.00 - $189.00

Duathlon, Aquabike, Triathlon

1.6K 16.1K 5K +1

DINO Gravel Triathlon

Terre Haute, Indiana, United States

01 Aug, 2026 (Sat)

$35.00 - $90.00

Duathlon, Triathlon, Trail running

10K 1.6K +1

YFC Seeley Lake Challenge Triathlon/Duathlon

Seeley Lake, Montana, United States

01 Aug, 2026 (Sat)

$25.00 - $100.00

Triathlon, Duathlon

22K 21.7K 26.7K Half-Marathon +5