From BR Bullpen
John Michael Adamson
- Bats Right, Throws Right
- Height 6' 2", Weight 185 lb.
- School University of Southern California
- High School Point Loma High School
- Debut July 1, 1967
- Final Game May 7, 1969
- Born September 13, 1947 in San Diego, CA USA
 Biographical Information
On June 6, 1967 Mike Adamson was drafted by the Baltimore Orioles in the 1st round (1st pick) of the 1967 amateur draft (Secondary Phase). He signed on June 27. At that time he was the first player in draft history to go straight to the major leagues.
The 19-year-old's first appearance came on July 1, against the Cleveland Indians. Adamson appeared in 3 games for the 1967 Orioles posting a 0-1 record in 3 appearances, before being sent to the International League Rochester Red Wings for the remainder of the season. While there he won 3 games while losing 4, pitching 60 innings and turning in a good 1.95 ERA.
Mike started 1968 with the Red Wings, winning 8 games and losing 4 in 60 innings and posted a 3.07 ERA. He was called up to the Orioles for the remainder of the season, going 0-2 in 7.7 innings and posted a 9.39 ERA.
In 1969 Mike was with both the Orioles and Red Wings clubs, building a 11-8 record in 149 innings with a 4.17 ERA with the Red Wings and going 0-1 in 6 games with the Orioles. This year was his last appearance in the major leagues.
Mike appeared in 27 games with the Rochester club in 1970, winning 4 and losing 5 in 95 innings with a 4.36 ERA. The young man spent 1971 with three different minor league teams, with an overall record of 1-3 in 74 innings and a combined 8.06 ERA.
At age 23 the righthander had spent 5 seasons in professional baseball and decided to look elsewhere for a career.
The Encyclopedia of Minor League Baseball: Third Edition
SABR Minor League Database