The Harold Alfond Athletic Center, named for philanthropist Harold Alfond, who contributed $3 million to the construction, includes the 3,000-seat Wadsworth Gymnasium, with a new basketball surface and scoreboards. There are five rebuilt glass-backed Dunaway Squash Courts, three American (built with false walls to convert to international-size courts) and five international-size courts. A conference room provides space for gatherings and a home for Colby's trophies and awards. There are new ice hockey locker rooms in the Alfond Ice Arena, a women's faculty/staff locker room and six new offices. Lighting was added to the football practice field. The 10 Alfond-Wales Tennis Courts were dug up and resurfaced with asphalt, and amid the courts is the new Klein Tennis Pavilion with meeting and storage rooms.

The 5,300-square-foot Alfond Fitness Center offers Nautilus, Stairmaster, Gravitron, Bodymaster, and lifecycle (regular & recumbent) machines, stepmills, stairclimbing machines, treadmills, squat racks and a full range of free weights. The center was designed with high ceilings, a stretch area, a window bench, water fountains and open ventilation. Directly upstairs is an aerobic studio with hardwood flooring and an ergometer training area. Both levels overlook the field house with its indoor track and tennis courts.