He played in Major League Baseball (MLB) as a second baseman for the Atlanta Braves and Oakland Athletics from 1978 to 1989.

Hubbard attended Wheatland High School, just outside Beale AFB, California, where his father was stationed.

Hubbard was known for his defense, and he holds the record for highest range factor per nine innings for a second baseman in MLB history.

[2] Hubbard's willingness to stand in while turning a double play with a runner coming at him and his steady glove made him very valuable for the Braves.

[2] Hubbard had spontaneously recruited a photographer at the park to take a shot of him with the snake and did not know it would be widely seen.

[4] When Fredi Gonzalez was hired as the Braves' manager on October 13, 2010, Hubbard was not offered a position on his staff, and the previous hitting coach, Terry Pendleton, replaced him.