Blaylock threw and batted left-handed, standing 6 feet 1 inch (1.85 m) tall and weighing 175 pounds (79 kg), during his playing days.

Originally signed by the Giants in 1947, Blaylock appeared in only one MLB game for them, as a pinch hitter on September 26, 1950.

Batting for pitcher Larry Jansen, he popped out to third baseman Billy Cox off Ralph Branca of the Brooklyn Dodgers.

However, in 1956, he started 110 games at first, improved his batting average to .254, and hit ten home runs, fourth on the team.

Blaylock was out of baseball in 1958 but returned for a final pro season in 1959 at the Double-A level, with the Nashville Vols of the Southern Association.