Yarmouth-Dennis Red Sox. The Yarmouth-Dennis Red Sox of the collegiate Cape Cod Baseball League play home games at Dennis-Yarmouth High School's Red Wilson Field from mid-June to mid-August. Baseball clinics for girls and boys age 5 and up run throughout the season. Dennis-Yarmouth High School, 180 Station Ave., South Yarmouth, MA, 02664. 508/394–9387. www.ydredsox.org.