Sourdough Triathlon 2025

Event Overview

The Sourdough Triathlon features a challenging course perfect for athletes looking for a half-Iron distance race. Swim in a clear, gravel pit, bike through quiet paved roads, and run on the shoulders of the same road, all while enjoying the beautiful Alaskan landscape.

Event Details

• Date: July 19, 2025
• Location: Milepost 31.5 Steese Highway, Chatanika, AK, United States
• Registration Opens: February 1, 2025
• Registration Closes: July 16, 2025, at 5:00 pm AST or at 99 participants, whichever comes first.
• Age Requirement: Participants must be at least 18 years old by December 31, 2025.

Course Distances

• Swim: 1.2 miles
• Bike: 56 miles
• Run: 13.1 miles

Entry Fees

Individual Entry Fees:

• Feb. 1 - June 30: $60
• July 1 - 15: $90
• July 16: $120

Relay Entry Fees:

• Feb. 1 - June 30: $120
• July 1 - 15: $150
• July 16: $180

All participants need a USA Triathlon membership. A one-day pass is available for $15, and an annual membership for $50.

Awards

Awards will be presented to the top three overall male and female finishers, as well as the top three masters (age 40+) and the top relay team.

Additional Information

The transition area is gravel with carpets for comfort. Participants may camp overnight in the area, and port-a-potties will be available. Following tradition, a potluck barbecue will take place after the race, and participants are encouraged to bring a dish to share.