RTB Race Series
Three races. One summer. Produced by the same team that trains alongside you every week — because we know what a great race experience looks like from the start line.
Black Diamond Triathlon
Gently rolling hills, a beautiful lake, and a rural setting that makes you forget you're racing. Black Diamond kicks off the RTB race season with a fast, friendly course and a full race-day experience — music, hot food, medals, and a volunteer crew that has your back at every turn.
Official Swim Course Sponsor
blueseventy.com →
Official Bike Course Sponsor
northwesttriandbike.com →Events & Distances
Bonney Lake Triathlon
The newest addition to the RTB race series. Set against the backdrop of Mount Rainier, Bonney Lake offers a scenic and challenging course that rewards athletes who've put in the summer miles.
Official Swim Course Sponsor
blueseventy.com → Official Bike Course Sponsor
northwesttriandbike.com →Events & Distances
Lake Meridian Triathlon
A Pacific Northwest favorite. Lake Meridian is local racing done big — a stunning freshwater lake, a fast and fair course, and an atmosphere that keeps athletes coming back year after year. This is RTB's flagship event, and it shows.
Official Swim Course Sponsor
blueseventy.com → Official Bike Course Sponsor
northwesttriandbike.com →Events & Distances
Not Racing? Volunteer.
Our races run because our community shows up. Volunteers get a front-row seat to race day — and the gratitude of every athlete crossing the finish line.