On June 30, 1962 With the aid of 13 strikeouts and a Frank Howard home run, Sandy Koufax no-hits Bob Miller and the Mets, 5 – 0 in Los Angeles. Sandy starts off the game by fanning the side on nine pitches in the 1st inning, the first National League pitcher to strike out the side on nine pitches since Brooklyn’s Dazzy Vance, in 1924. It will be the first of four career no-hitters thrown by Koufax.

Source
Baseball Reference June 30