Who is the only Major League Baseball player to throw back to back no hitters?

Johnny Vander Meer is the only pitcher in Major League history to throw no-hitters in consecutive appearances. The Reds left-hander threw his first vs. the Boston Bees on June 11, 1938, then followed it up on June 15 with another no-no vs. the Brooklyn Dodgers. Including his two starts before and after the no-hitters, Vander Meer pitched a total of 21 1/3 no-hit innings over four games.

He played in Major League Baseball as a pitcher, most notably for the Cincinnati Reds. After the impressive start to his major league career, he experienced problems controlling the accuracy of his pitching, and his later career was marked by inconsistent performances.

Vander Meer threw left-handed and batted as a switch hitter.