Half Distance Triathlon Waco, Texas - Get ready to experience the adventure of a lifetime deep in the Heart of Texas! Swim – A Texas-Size Start Kick off your journey in style with a shotgun start by Sheriff Parnell McNamara at Pecan Bottom Park. Glide through the Brazos River on a 1.2-mile downriver swim, guided by a gentle current and surrounded by serene views. With an average water temperature of 65°F (18°C), it’s the ideal way to start your race strong. Bike – Speed Meets Scenery Shift ...