RTB's Black Diamond Tri is coming back in 2021 on August 14th!

Long Course Triathlon - 70.3
1.2 mile swim, 56 mile bike, 13.1 mile run
Olympic Triathlon
1.5K swim, 40K bike, 10K run
Sprint Triathlon
.5 mile swim, 13.7 mile bike, 2.8 mile run

New Additions!!
Long Course Aquabike
1.2 mile swim, 56 mile bike
Long Course Duathlon
56 mile bike, 13.1 mile run
Long Course Triathlon Relay - 2 or 3 person
1.2 mile swim, 56 mile bike, 13.1 mile run

Get ready to jump into the Black Diamond Triathlons in the beautiful Cascade Foothills of Western Washington.  Athletes will swim in picture perfect Deep Lake, followed by a rolling, elevation-friendly bike course winding through the sleepy communities of Ravensdale, Selleck, and the farmlands of Enumclaw. Short Course athletes will run in the park on a wooded trail for a shorter-than-normal run of 2.8 mile. 70.3 and Olympic athletes will head south back toward the farms and finish up on that same trail around the lake.

All participants will receive a medal, race tee, and post race food.

Sign up now for RTB's one and only race of the 2021 season