Jay Hook was an American professional baseball player who had a notable career as a right-handed pitcher in Major League Baseball (MLB). He played for the Cincinnati Reds and the New York Mets, demonstrating his skills and contributing significantly to the teams' successes during his active years.

Hook began his MLB career with the Cincinnati Reds in 1957. He was known for his impressive fastball and curveball, which he used to great effect against his opponents. Despite his talent, Hook struggled with consistency during his early years with the Reds. However, he showed significant improvement over time, becoming a reliable starting pitcher for the team. His best season with the Reds was in 1961 when he won 11 games and helped the team win the National League pennant.

In 1962, Hook was selected by the New York Mets in the expansion draft. He made history as the first pitcher to record a win for the Mets, a feat he achieved on April 23, 1962, against the Pittsburgh Pirates. Despite the Mets' overall poor performance during the season, Hook stood out with his pitching skills, recording 8 wins and a 4.84 earned run average.

Hook's career with the Mets was marked by ups and downs. He had a strong start in 1962, but his performance declined in the following years. He struggled with control issues and was often plagued by injuries, which affected his effectiveness on the mound. Despite these challenges, Hook remained a key player for the Mets, providing valuable experience and leadership to the young team.

Hook retired from professional baseball after the 1964 season. Over his eight-year career in the MLB, he recorded a total of 29 wins, 57 losses, and a 5.35 earned run average. He pitched in 160 games, starting 111 of them, and completed 13 games. He also recorded four shutouts and struck out 394 batters.

Despite his relatively short career and modest statistics, Hook left a lasting impact on the game. He is remembered for his historic win with the Mets and his contributions to the Reds' 1961 pennant-winning season. After his retirement, Hook pursued a career in academia, earning a Ph.D. in mechanical engineering and becoming a professor. His unique combination of athletic and academic achievements has made him a notable figure in the history of baseball.