Blaylock was the Phillies' most-used first baseman in both 1955 and 1956. In 1955, he appeared in 113 games, starting 55 of them (while Earl Torgeson, Eddie Waitkus, and Stan Lopata each started more than 25 games at first for the team). Blaylock batted only .208 with three home runs that season. However, in 1956, he started 110 games at first, improved his batting average to .254, and hit ten home runs, fourth on the team.
But it was not enough production, and Blaylock lost his starting job to rookieEd Bouchee in 1957. He was sent down to the Triple-A Miami Marlins for 41 games before his recall in September 1957. In his final Major League at bat, Blaylock hit a pinch hit home run off René Valdés of the Dodgers in an 8–4 loss at Connie Mack Stadium.[2] As a Major Leaguer, he had 175 total hits, including 21 doubles, 15 triples, and 15 homers.