Born: March 31, 1920|
Died: December 1, 1975 55) (aged|
|September 12, 1941, for the New York Giants|
|Last MLB appearance|
|April 14, 1955, for the Milwaukee Braves|
|Earned run average||3.68|
|Career highlights and awards|
George Bernard "Dave" Koslo (né Koslowski, March 31, 1920 – December 1, 1975) was a professional baseball left-handed pitcher over parts of twelve seasons (1941–1942, 1946–1955) with the New York Giants, Baltimore Orioles and Milwaukee Braves.
On April 18, 1947, Koslo gave up Jackie Robinson's first major league home run, hit in the third inning.
Koslo was the winning pitcher in the opening game of the 1951 World Series and the losing pitcher of its final game.
He was born and later died in Menasha, Wisconsin, at the age of 55.
- Opening Day: The Story of Jackie Robinson's First Season, p. 68, Jonathan Eig, Simon & Schuster, 2007, New York, ISBN 978-0-7432-9461-4
- "Dave Koslo". The Post-Crescent. December 2, 1975. p. 28. Retrieved February 1, 2016 – via Newspapers.com.
- Career statistics and player information from MLB, or Baseball-Reference, or Baseball-Reference (Minors)