Duathlon Race Calendar in United States

CajunMan Triathlon, Duathlon, Aquabike, Aquathlon & 5k Run

Lafayette, Louisiana, United States

06 Sep, 2026 (Sun)

$30.00 - $160.00

Triathlon, Duathlon, Running

38K 37.2K 5K +4

Smith Mountain Lake Ultra Triathlon

Huddleston, Virginia, United States

11 Sep, 2026 (Fri) – 12 Sep, 2026

$349.00 - $449.00

Triathlon, Aquabike, Duathlon, Trail running

Ultra +5

Belews Lake Olympic Triathlon

Stokesdale, North Carolina, United States

12 Sep, 2026 (Sat)

$45.00 - $120.00

Triathlon, Duathlon, Aquabike, Running

Ultra 44.9K +7

DQ Pine Barrens Olympic Triathlon, Duathlon, & Aquabike; Sprint Triathlon & Aquathlon *#

Shamong, New Jersey, United States

12 Sep, 2026 (Sat)

$110.00 - $175.00

Triathlon, Duathlon, Running, Swimrun

Ultra 49.6K 41.1K 45.4K +3

Tri the Parks - John Tanner Fall Sprint

Carrollton, Georgia, United States

12 Sep, 2026 (Sat)

$104.00 - $149.00

Triathlon, Duathlon, Aquabike

27.4K 32.2K 22.5K +2

marshall FINANCIAL GROUP Warrington Sprint Tri/Du/Aqua #

Warrington, Pennsylvania, United States

13 Sep, 2026 (Sun)

$70.00 - $110.00

Triathlon, Duathlon, Running

Half-Marathon 24.3K 16.4K +1

2026 Quarry Springs Paddle Skedaddle Biathlon

Colfax, Iowa, United States

13 Sep, 2026 (Sun)

$25.00 - $45.00

Paddle sports, Duathlon, Running

8.9K 5.6K

Rev3 Back Bay

Snow Hill, Maryland, United States

13 Sep, 2026 (Sun)

$100.00 - $120.00

Triathlon, Duathlon, Aquabike

30.7K 31.5K 25.7K

AdventHealth Cool Sommer Mornings Triathlon\Duathlon\5K Series #4

Clermont, Florida, United States

13 Sep, 2026 (Sun)

$45.00 - $210.00

Running, Triathlon, Swimrun, Aquabike, Duathlon

5K 18.6K 5.4K 13.6K +8

Bay Bridge Paddle

Annapolis, Maryland, United States

13 Sep, 2026 (Sun)

$60.00 - $365.00

Paddle sports, Duathlon

14.5K 4.8K 1.6K +14

Shaver Lake Mile High Triathlon

Shaver Lake, California, United States

13 Sep, 2026 (Sun)

$55.00 - $340.00

Triathlon, Aquabike, Swimrun, Duathlon, Running

23.7K 48.4K 18.7K 5.3K +12

Winchester Lakeside Triathlons Presented by Highpoint Health – Winchester/Sewanee with Ascension Saint Thomas

Winchester, Tennessee, United States

19 Sep, 2026 (Sat)

$100.00 - $160.00

Triathlon, Duathlon, Aquabike

27K 49.9K 29K 24.1K +6