After spending five seasons in the Detroit Tigers minor league system left handed pitcher Jack DiLauro was acquired by the Mets prior to the 1969 season. After starting the season with the Tidewater Tides, DiLauro made his Major League debut on May 15, 1969. He pitched two innings and allowed one hit in the Mets 6-5 loss to the Atlanta Braves. From that point DiLauro appeared in 23 games, mostly out of the bullpen in helping the Mets make the postseason for the first time in franchise history. He posted a 1 -4 record with four saves and a very respectable 2.40 ERA. His one only victory came on July 20th against the Montreal Exp
Despite helping the Mets reach the playoffs, DiLauro did not appear in the postseason for the Mets as they went on to win the World Series. Following the season the Mets lost DiLauro to the Houston Astros in the rule 5 draft.
While with the Mets DiLauro wore number 31.
Jack DiLauro also played for the Houston Astros in 1970.