2025 Cal Tri Richmond - 5.18.25. Make history of your own at Lake Anna, one of the largest freshwater inland lakes in Virginia, located 60 miles from Richmond and 72 miles south of Washington, D.C. 18 EVENT OPTIONS. 6 Olympic distance events (Triathlon, RunBikeRun, SwimBike, SwimRun, 1640 Yard Swim & 10K Run), 6 Sprint distance events (Triathlon, […]