HALF IRONMAN 70.3 Waco: Prepare for the ultimate test of endurance at Half Ironman 70.3 Waco, where swimming, biking, and running converge into an epic triathlon experience. 1.2-Mile Swim: Embark on a 1.2-mile river adventure resembling a lazy river ride. With an average water temperature of 65°F (18°C), test your ability to brave the chill while maintaining your competitive edge. 56-Mile Bike Course: Experience the new 56-mile bike course through the Heart of Texas—featuring smoother roads ...