1st Ron Guidry is the unanimous choice for the AL Cy Young Award. The southpaw led the league in wins, percentage, shutouts (9), and ERA (1.74).
4th The 3rd annual reentry free-agent draft is held at the Plaza Hotel, New York City. Pete Rose, Tommy John, and Darrell Evans are the biggest names among the eligible players.
6th The Yankees release Andy Messersmith who will sign with the Dodgers. Messersmith never really recovered from the separated shoulder suffered in spring training.
7th Boston’s Jim Rice outpoints New York’s Ron Guidry, 353-291, to win the AL MVP Award. Rice led the league in hits (213), triples (15), HRs (46), RBI (139), and slugging (.600), and became the first AL player to accumulate 400 total bases in a season since Joe DiMaggio in 1937.
10th In a major trade, the Yankees send former Cy Young winner Sparky Lyle, along with pitchers Larry McCall and Dave Rajsich, C Mike Heath and infielder Domingo Ramos to the Rangers. The Rangers pack up outfielders Juan Beniquez and Greg Jamison, and pitchers Dave Righetti, Mike Griffin and Paul Mirabella. Righetti, considered the top lefty prospect in the minors, will win Rookie of the Year honors in 1981.
Billy Martin scuffles with sport writer Ray Hagar in Reno, Nevada. No decision for either pugilist.
13th Luis Tiant, formerly of the Red Sox, becomes the first to sign with a new club following the reentry draft. The 38+-year-old pitching star joins the Yankees, and will go 13–8 next year.
15th The Pirates Dave Parker wins the NL MVP Award, 320-194 over the Dodgers Steve Garvey. Parker had 30 HRs, 117 RBI, and league-leading figures in batting (.334), slugging (.585), and total bases (340).
21st Brave Bob Horner edges Padre Ozzie Smith to win the NL Rookie of the Year Award. Horner batted .266 with 23 HRs in just 323 at bats.
22nd Second baseman Lou Whitaker, who batted .285 for the Tigers, wins the AL Rookie of the Year, receiving 21 of 28 votes.
The Yankees sign Tommy John, a reentry free agent formerly with the Dodgers. The sinkerballer will be a valuable addition to the Yankees, winning 43 games in the next two seasons.
The Ford Motor Credit Company purchases holdings of the General Electric Credit Company, thereby acquiring 100 percent interest in the Houston Astros.
28th The Reds fire manager Sparky Anderson after 9 years, during which the club averaged 96 wins per season and won 5 divisional titles, 4 league pennants, and 2 World Championships. The surprise move comes six days after the Reds return from a trip to Japan. Anderson has one year left on a contract and had no idea he’d be fired.
The Orioles sign pitcher Steve Stone, a reentry free agent formerly with the White Sox.