Hagg Lake Triathon & Trail Festival
Gaston, Oregon, United States
Jun 21, 2026 - Sunday
5k, Half-marathon
Video
Race Information
The annual Hagg Lake Triathlon & Trail Festival is one of the oldest and most gorgeous triathlon courses in the nation and has race options for a half-marathon trail run and a 5k trail run during the 2-day weekend event. Hosting the USAT Cross Triathlon and Duathlon Nationals, there will be tent camping available Friday and Saturday night.
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Oregon Run Pick of the Month - Shamrock Run Fest
In March, join in the lively celebration of St. Patrick’s Day and the running community at the Shamrock Run Fest presented by Toyota!
Choose your perfect adventure from a variety of distances, including the Half Marathon, the classic 8K, or the speedy 5K. Bring the whole crew for the Stride Walk or let the kids shine in the Leprechaun Lap.
Each course offers a stunning tour of the city, from downtown streets to scenic waterfront paths, showcasing Portland's iconic bridges, skyline, and lush green spaces.
The energy doesn't stop at the finish line! Celebrate your achievement at the Irish-inspired festival with live music, craft beer, and a true St. Patrick’s Day party atmosphere.
Ready to join the fun? Find your distance and sign up today!
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Race Facts
Race Size: 1,000 - 5,000
Elevation: Some Hills
Course Type: Trail
Boston Qualifier: No
Kids Run: No
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