The Mets purchased the contract of right-handed pitcher Galen Cisco from the Boston Red Sox on September 7, 1962. Two days later he made his Met debut against the Houston Colt 45’s when he relieved starter Craig Anderson in the first inning after Anderson gave up three runs to the first five batters. Cisco would pitch four innings and allow two runs and five hits. The game became memorable because it turned out to be a tie. The game was suspended after 8 innings due to a curfew, back in 1962 no inning could start after 7:00 PM on a Sunday night. Cisco would appear in three more games and posted a 1-1 record and 3.26 ERA. His only victory came on September 21 when he pitched a complete game four-hitter against the Chicago Cubs.
Cisco returned in 1963 and pitched in 51 games, 17 as a starter and 34 out of the bullpen. He finished with a 7-15 record and 4.34 ERA. His best game occurred on August 2 against the Milwaukee Braves. He pitched 10 innings and allowed one unearned to earn the victory.
In 1964 he appeared in 36 games, 25 as a starter, and posted a 6-19 record and led the team with a 3.62 ERA. He pitched five complete games and two shutouts. His first occurred on June 5 against the defending World Champion Los Angeles Dodgers, the second came on July 12 against the Cincinnati Reds when he outpitched John Jay and won the game 1-0.
He once again split time between the starting rotation and bullpen in 1965. He finished with a 4-8 record with a 4.49 ERA. His best outing came on July 29 against the Chicago Cubs when he pitched a 4-hit shutout as the Mets won 14-0.
Cisco started the 1966 season in the minors where he appeared in five games for the Jacksonville Suns before the Mets sold him back to the Boston Red Sox on June 6. In 126 games over four seasons, 61 as a starter, Cisco posted an 18 and 43 record with a 4.04 ERA.
While with the Mets Cisco wore number 26.
Galen Cisco also played for the following teams:
Boston Red Sox – 1961,1962, 1967
Kansas City Royals – 1969