Half Distance Triathlon Maine – Senior 60+ Training Plan Alignment The Half Distance Triathlon in Maine presents a fast, current-assisted 1.2-mile swim, a 56-mile bike with 3,000+ feet of climbing through the scenic Kennebec River Valley, and a mostly flat 13.1-mile run along shaded riverside roads. With average July conditions of 69°F (21°C) water and 75°F (24°C) air temperature, athletes face both aerobic and muscular challenges across varied terrain. This 24-week Senior Triathlete 60+ Half ...