Ultimate Fitness in Chula Vista has occupied Oxford Street since 1996, operating an 18,000-square-foot conditioning facility built around Olympic platforms, heavy bags, and free-weight racks rather than cardio machines. A dedicated 3,000-square-foot group fitness floor hosts the proprietary Core Specific Boot Camp and Express classes—timed circuits of concept rowers, battle ropes, kettlebells, and medicine balls—drawing the same athlete demographic served by Sports Performance Physical Therapy for post-training rehabilitation. The facility has hosted NFL, MLB, and IMMAF competitors training alongside general-population members on the same floor, with deadlift platforms supporting loads north of 500 pounds. Membership covers dual-location access to both the Oxford Street headquarters and the Imperial Beach bodybuilding facility on 13th Street, a two-gym model in a South Bay fitness corridor that includes Ultimate Sport Nutrition Shop for competition-prep supplementation. The conditioning floor runs Hammer Strength and Ivanko iron up to 150-pound dumbbells, paired with heavy bag stations rated for full-contact striking and concept rowers calibrated for 500-meter interval splits.