Crush Oceanside with the Ultimate 36-Week Plan for Senior Triathletes 60+ If you're a competitive triathlete over 60 eyeing the Half Distance Oceanside Triathlon, this is your moment. Known for its cool 61°F harbor swim, scenic ride through Camp Pendleton, and a fast yet technical run along The Strand, Oceanside is as demanding as it is iconic. Our 36-Week Half Distance Training Plan is built specifically for Senior Triathletes 60+, combining proven endurance strategies with age-specific ...