This study examines the association between the firm’s R&D investment efficiency and the golfing activities of corporate top executives (CEOs and CFOs). Based on a sample of S&P 1500 firms and golfing data obtained from GHIN (Golf Handicap and Information Network), this study find that golfer-CEOs and golfer-CFOs tend to yield better R&D investment efficiency than their non-golfer counterparts. Furthermore, the more frequently CEOs play golf, the better their firms’ R&D investment efficiency. These interesting results seem to suggest that golf court may serve as a useful platform for top executives to exchange investment information and establish efficient communication channel with other firms. On the other hand, this study also find CEOs’ golfing skill has significant negative impact on firms’ R&D investment efficiency, implying that better-skilled CEOs may tend to be overconfident, resulting poor R&D investment efficiency. This study does not find significant impact of both CFOs’ golfing skill and golfing frequency on firms’ R&D investment efficiency, indicating that CFOs may not play as important role as CEOs when it comes to R&D investment decisions.