Endurance Race Calendar August

North Shore RunFest

Salem, Massachusetts, United States

30 Aug, 2026 (Sun)

$45.00 - $50.00

Running

10K

2026 Bonney Lake Triathlon

Bonney Lake, Washington, United States

30 Aug, 2026 (Sun)

Swim of Legends

Lake Geneva, Wisconsin, United States

30 Aug, 2026 (Sun)

$170.00

Swimming

11.3K

Summer Sizzler- Greater Chicago

Aurora, Illinois, United States

30 Aug, 2026 (Sun)

$22.00 - $38.00

Running

5K 10K 15K 1.6K

Rise & Run for Recovery

Lake Villa, Illinois, United States

30 Aug, 2026 (Sun)

$35.00

Running

5K

Friendship Circle 5K and 1K Family Fun Run! Race, Walk or Roll For Inclusion.

Overland Park, Kansas, United States

30 Aug, 2026 (Sun)

$18.00 - $36.00

Running

5K 1K

James Test Site

Lyons, Colorado, United States

30 Aug, 2026 (Sun)

Running

5K 10K

Hero Hustle Sprint Triathlon & Duathlon

Manchester, Iowa, United States

30 Aug, 2026 (Sun)

Iron Horse Half Marathon

North Bend, Washington, United States

30 Aug, 2026 (Sun)

$52.00 - $97.00

Running

Half-Marathon

WheELS for Autism

Jupiter, Florida, United States

30 Aug, 2026 (Sun)

Free

Cycling

Ultra

Concrete Climb Half Marathon, 10K & 5K

Columbia, Maryland, United States

30 Aug, 2026 (Sun)

$35.00 - $55.00

Running

Half-Marathon 10K 5K

High Rock Mountain Running Challenge

Cascade, Maryland, United States

30 Aug, 2026 (Sun)

$20.00

Running

6.1K