Reston Masters' Jim McDonnell Lake Swims

Held annually on the first Sunday in June, this year’s 20th annual Reston Sprint Triathlon takes place on Sunday, June 7, 2026, beginning with a 400-meter swim in Lake Newport pool, followed by a 12-mile bike ride on the streets of Reston, and a 5K run on area pathways. Afterward, celebrate your success and share your stories with friends and family in the post-race beer garden.

Our in-person Monthly Meetup series begins in February. Meetups present an opportunity to meet the RST leadership team, gain resources for your training, participate in raffles, and make new friends! In addition, the Health & Wellness Fair takes place on Saturday, June 6th, 2026, in the Lake Newport pool parking lot.

Join our amazing community of athletes, sponsors, and volunteers!

Since 1984, the Reston Triathlon has been a staple in our community. It opens with a 1500-meter open water swim in Lake Audubon, followed by a 25-mile bike ride and a 10K run on local paths. The Olympic distance event has challenged athletes from around the country and has affectionately been called the Reston Triathlon World Championship.

During the pandemic, the previous board worked tirelessly to keep the tradition alive. Unfortunately, in 2021, they announced they could no longer financially or logically sustain the Reston Triathlon. CORE Foundation, working closely with the previous board, is thrilled to revive the event and continue the legacy. The Reston Triathlon made its comeback debut on September 10, 2023! This year's race date is September 28, 2025.

CORE Foundation is grateful for the loyal athletes and local community. They received overwhelming support while pursuing the opportunity to restore this community event.

To join our list of wonderful partners, please email jdryzga@corefoundation.org.