Atlanta — PGA TOUR Superstore, a leading experiential golf retailer, plans to open at least six new stores in 2021, reaching the 50-store milestone by the end of the year. The company also reported record comp store sales growth while gaining market share for fiscal 2020 — despite its brick-and-mortar doors being closed for nearly 2 months — as millions of people turned to golf during the pandemic. In January, PGA TOUR Superstore opened its first store of 2021 in Natick, Mass., with five additional stores planned for later this …