Hagg Lake Trail Half Marathon & 5K

July 13, 2025
Henry Hagg Lake
Trail
Distances
Starting Time

9:00 AM

Fees

$97+

Perfect For

Ready to sign up?

500-1000
Some Hills
High: 82°
/ Low: 55°

Dive into history and nature at the 43rd Annual Hagg Lake Triathlon & Trail Festival, a celebration of tradition and stunning landscapes. As one of the nation’s oldest and most beautiful triathlon courses, this event offers an array of options, including Olympic & Sprint Triathlon, Duathlon, Paddle Tri, AquaBike, and Off-Road Sprint Triathlon. Trail enthusiasts can participate in the Half Marathon Trail Run and 5K Trail Run, with relay options perfect for friends, family, and co-workers.

The roots of modern triathlon trace back to San Diego in 1974, and Hagg Lake joined the scene seven years later as part of the Bud Light Triathlon Series Tour. Drawing about 500 athletes initially, it has now become a summer staple with over 700 participants. The course’s allure lies in its rich tradition and scenic venue, offering a true test with rolling hills on both the bike and run legs. Join us at Hagg Lake, where history meets athleticism, and experience the course that has witnessed the triumphs of many greats in the sport of triathlon.

Visit the race website for up to date course description.

Overview
Dive into history and nature at the 43rd Annual Hagg Lake Triathlon & Trail Festival, a celebration of tradition and stunning landscapes. As one of the nation’s oldest and most beautiful triathlon courses, this event offers an array of options, including Olympic & Sprint Triathlon, Duathlon, Paddle Tri, AquaBike, and Off-Road Sprint Triathlon. Trail enthusiasts can participate in the Half Marathon Trail Run and 5K Trail Run, with relay options perfect for friends, family, and co-workers. The roots of modern triathlon trace back to San Diego in 1974, and Hagg Lake joined the scene seven years later as part of the Bud Light Triathlon Series Tour. Drawing about 500 athletes initially, it has now become a summer staple with over 700 participants. The course’s allure lies in its rich tradition and scenic venue, offering a true test with rolling hills on both the bike and run legs. Join us at Hagg Lake, where history meets athleticism, and experience the course that has witnessed the triumphs of many greats in the sport of triathlon.

Visit the race website for up to date course description.

Train with Runna

Use code HALF for 2 weeks FREE

Hagg Lake Trail Half Marathon & 5K Course Map

Distances
Starting Time

9:00 AM

Fees

$97+

Perfect For

Ready to sign up?

Train with Runna

Use code HALF for 2 weeks FREE

Ready to sign up?

Related Races

Half marathon news, reviews, and discounts right to your inbox

Half Marathon Guide's 'Perfect For'

Let others know what makes this race so special.