HAGG Lake Triathlon & Trail
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Hagg Lake Triathlon & Trail Festival
The Hagg Lake Triathlon & Trail Festival takes place June 20 and 21, 2026 at Henry Hagg Lake in Oregon. The event is presented as one of the nation’s oldest and longest running triathlon festivals and includes road and off road multisport races, trail runs, relay options, and a charity partner.
Race formats and distances include:
- Olympic Triathlon: 1500m swim, 20 mile bike, 10K run
- Sprint Triathlon: 750m swim, 10 mile bike, 5K run
- Duathlon options: 5K run, 10 or 20 mile bike, 5K or 10K run
- AquaBike: 1500m or 750m swim and 20 or 10 mile bike
- Off road Sprint Triathlon: 750m swim, 14 mile bike, 5K run
- Trail runs: Half marathon trail and 5K trail
- Paddle Triathlon and relay team divisions
Camping is available on site for tents only; separate fees apply for one or two nights. Park rules require campers to pack out garbage, restrict amplified sound and lake use overnight, and limit vehicle access in the camping area.
The event follows USAT rules for triathlon and duathlon, with helmet requirements and no music allowed during the bike segment. Awards are given to top overall and masters winners plus age group places; Clydesdale and Athena divisions follow specific eligibility rules. A local nonprofit focused on water safety is listed as the event beneficiary. Visit the organization's website for the most recent information.
