About Ellis Aquatics Ellis Aquatics was founded in 2010 by coaches Clay Basepayne, Pat Windschitl, Erin Mann, and Matt Gumpert. We are a coach run USA/Pacific Swimming, Waterpolo, and Masters club offering professional coaching for athletes of all ages in Tracy, Manteca, Mountain House and the surrounding areas. The goal of our club is to train lifelong athletes who love the sport and the experiences it brings. We believe swimming and water polo builds leaders, teaches goal setting and drives the determination to accomplish more. As coaches we strive to help build up all of our athletes, starting with our youngest 4 year olds, to become tomorrows international competitors.