On April 6, 1971 at San Diego Stadium (later known as Jack Murphy Stadium), Willie Mays of the San Francisco Giants hit a home run in the first inning off Tom Phoebus of the Padres on Opening Day. This blast marked the beginning of an historic streak in which Mays hit home runs in each of the Giants’ first four games, setting a major league record. The record would later be tied by Mark McGwire (1998), Nelson Cruz (2011), and Chris Davis (2013).