On October 3, 1965.00 On the last day of the season, Giants’ outfielder Willie Mays hits his 52nd home run to break the franchise record he established in 1955. The ‘Say Hey Kid’s’ league leading home run is given up by Reds hurler Billy McCool as San Francisco defeats Cincinnati at Candlestick Park, 6-3.
April 20, 1966
Willie Mays of the San Francisco Giants establishes a new National League record for most career home runs
May 4, 1966
October 1, 2005