Thanks to a scoring change made after the game by a panel of sportswriters who reverse a 1st-inning hit into an error, Bob Groom of the Browns no-hits the White Sox, 4 – 0, in the second game of a doubleheader. Yesterday, Groom’s teammate Ernie Koob also threw a no-hitter against the Pale Hose.

On May 16, 1917 — Thanks to a scoring change made after the game by a panel of sportswriters who reverse a 1st-inning hit into an error, Bob Groom of the Browns no-hits the White Sox, 4 – 0, in the second game of a doubleheader. Yesterday, Groom’s teammate Ernie Koob also threw a no-hitter against the Pale Hose.

Source:
Baseball Reference May 16