Wally Bunker stepped onto the Major League Baseball scene as a promising young pitcher with the Baltimore Orioles. Born on January 25, 1945, in Seattle, Washington, Bunker quickly rose through the ranks of baseball's minor leagues, showcasing his talent and potential. His major league debut came at the tender age of 18, when he joined the Orioles in 1963.

Bunker's breakout season arrived in 1964, when he became one of the standout pitchers in the American League. That year, he posted an impressive 19-5 record with a 2.69 ERA, earning him the Sporting News American League Rookie of the Year award. His performance was instrumental in helping the Orioles finish third in the league, and he finished second in the voting for the official Rookie of the Year award. Bunker's ability to maintain composure on the mound and deliver consistent performances made him a valuable asset to the Orioles' pitching rotation.

In 1966, Bunker played a crucial role in the Orioles' journey to their first World Series championship. During the regular season, he contributed with a solid 10-6 record. However, it was his performance in the World Series that truly stood out. In Game 3 against the Los Angeles Dodgers, Bunker pitched a complete-game shutout, leading the Orioles to a 1-0 victory. This win was part of a dominant sweep by the Orioles, who captured the championship in four games. Bunker's World Series heroics cemented his place in Orioles history.

Despite his early success, Bunker's career was hampered by injuries. Arm troubles began to affect his performance, limiting his effectiveness on the mound. In 1967, his playing time was significantly reduced, and he struggled to regain his previous form. The Orioles traded him to the Kansas City Royals in the 1968 expansion draft, hoping a change of scenery might help him rediscover his earlier success.

With the Royals, Bunker found a new opportunity to contribute. In 1969, he was part of the inaugural team for the franchise, and he delivered a respectable season with a 12-11 record and a 4.29 ERA. His experience and leadership were valuable to the young Royals team, and he provided stability to their pitching staff. However, his arm issues persisted, and his performance began to decline in the following seasons.

Bunker's time with the Royals came to an end after the 1971 season. He attempted a comeback with the Houston Astros in 1972 but was unable to make the team, leading to his retirement from professional baseball. Despite the challenges he faced, Bunker's early career achievements and his role in the Orioles' 1966 World Series victory remain highlights of his time in the major leagues.

Throughout his career, Bunker was known for his poise and ability to perform under pressure.