Use the code “RG2023” for 10% OFF registration!

LA Tri Series #1 – Spring Slash

Welcome to the oldest, continuous running triathlon in the world.

Since 1983 triathletes have traveled to Bonelli Park, on the eastern edge of Los Angeles County, to learn the sport; to shake off the winter rust and get ready for the upcoming season; to see old friends and make new friends; and to be in the midst of a fun, high-energy, multi-sport setting. The LA Tri-Series events accomplish all of that and more! If you are new to the sport of triathlon this is the perfect setting to learn open water swimming in a safe environment, cycling around as a safe course with little traffic, and a well-supported run to one of the most beautiful finish lines you will experience. If you are an experienced triathlete who has been waiting for a warm water swim and safe bike course to start off the season – this is for you also.

Come on out and be a part of history at the 40th consecutive LA Tri-Series event.