Blowers made his Major League Baseball debut with the New York Yankees on September 1,, and played his last game on October 3, for the Seattle Mariners. Blowers, playing with the Yankees against Texas, in Arlington Stadium, in the fifth inning, on April 21, 1990, hit his first MLB home run off Charlie Hough and four innings later in the ninth inning, hit his second homer off Craig McMurtry. On May 3, playing in Yankee Stadium, he committed 4 errors at third base, leading to 7 unearned runs, in a 10-5 loss to the Cleveland Indians. At the time he was the 21st American Leaguethird basemen to have such a terrible day. On the other hand the only third baseman to commit more errors in a game was David Brain for the Boston Beaneaters in 1906. He was the 13th player to hit grand slams in consecutive games, which he did on May 16 and 17 of with the Mariners. He hit for the cycle on May 18, as a member of the Oakland Athletics. In 1995, Blowers hit.257 with 23 home runs and 96 RBI for the Mariners as they made their first postseason and advanced to the American League Championship Series. His 33 RBI in August remains the most by a Mariners player in a single month, a record he co-holds with Mariners Hall of Fame third baseman and designated hitterEdgar Martínez. In 1999, Blowers played 73 games with the Hanshin Tigers of the Nippon Professional Baseball league.
Post-playing career
Since 2007, he has been a television and radio color commentator for the Seattle Mariners. He worked alongside Baseball Hall of Fame broadcaster Dave Niehaus, and continues to work with Dave Sims. He was inducted into the Tacoma Community College Athletics Hall of Fame in 2007. Blowers owns and manages a number of Washington-based companies, including Beach Wood Homes of Fife and Keymark Real Estate of Puyallup.
Prediction of Tuiasosopo's first career home run
During the pre-game broadcast of a September 27, 2009 bout between the Mariners and the Toronto Blue Jays, Blowers predicted Matt Tuiasosopo's first career home run. What started as simply selecting a notable player for the day's game became an extended humorous rant by Blowers. In the course of pre-game banter, he stated that the home run would come in Tuiasosopo's second at bat, on a fastball from Brian Tallet with a 3-1 count, and that the ball would land in the second deck of left center field. This then happened - with correct prediction of player, at-bat, count, pitch, and general landing area - in the top of the fifth inning. Blowers was on the television side of the broadcast when the prediction came true, and laughed it off without explanation, though days later explained that Tallet likes to throw fastballs, but has poor control of his pitches. Tallet was also a relief pitcher who was in the starting rotation in the 2009 season, increasing his workload. Radio announcers Rick Rizzs and Dave Niehaus, however, recalled the prediction, restated it for the audience, and were beside themselves in laughter and disbelief as the prediction came true. Said Niehaus on-air, seconds before the event, "I've never been so excited on a 3-1 count in my life!". As Tuiasosopo circled the bases, Niehaus exclaimed "I see the light! I believe you Mike!".