The Blue Jays led the A.L. in attendance, and registered the sixth-highest home run total in league history with 215, including a major-league record 10 home run game on September 14.

George Bell (47 HRs and 134 RBI) earned A.L. MVP honors. Jimmy Key compiled a 17-8 record with a 2.76 ERA. Tony Fernandez hit .322 with 32 stolen bases. Tom Henke led the A.L. in saves with 34.

Rookie Fred McGriff hit 20 homers while Jeff Musselman finished 12-5. Mike Flanagan pitched well after being acquired from Baltimore on August 30. David Wells was effective in middle relief, appearing in 18 games.

June 2, Blue Jays embark on a club record 11-game win streak... July 1, Blue Jays set a club record when a Canada Day crowd of 47,828 fans saw the Yankees... July 14, George Bell participates in the All-Star Game and is the first Blue Jay ever selected by the fans... September 14, Ernie Whitt becomes the second Blue Jays player to have a 3 home run game as Blue Jays set a Major League Record with 10 home runs in a game vs. the Orioles... September 30, Blue Jays final home attendance reached 2,778,429, the most ever for an AL East team and the club led the AL in attendance for first time ever... November 17th, George Bell named AL MVP... December 8th, George Bell is named the ML Player of the Year by The Sporting News.

After the All-Star break, the Jays played consistent baseball, posting the Division's best second-half record with 45 wins, 22 of these coming in the stretch drive.

The Jays led the league in home runs (158), triples (47), total bases (2330) and slugging percentage (.419). Fred McGriff's 34 homers led the A.L., as did the pitching staff's 17 shutouts. George Bell stroked 24 homers and added 97 RBIs. Jimmy Key recovered from arm trouble to go 12-5 and Dave Stieb tossed three one-hitters over the course of the campaign. Tom Henke saved 25 games while Duane Ward posted a 9-3 mark in 64 appearances.

Newcomers Pat Borders (.273) and Rob Ducey (.315) were pleasant surprises. Kelly Gruber (16 home runs) and Tony Fernandez (.287) solidified the infield with excellent defence and made consistent contributions at the plate. The future looked bright.

April 3, George Bell becomes the first major leaguer to hit 3 home runs on Opening Day... April 11, Blue Jays defeat the Yankees in their home opener before their largest Opening Day crowd (45,185)... May 31, Dave Stieb tosses his first career One Hitter, defeating Milwaukee 9-0... June 4, Blue Jays complete a 4-game sweep at Fenway Park, their first sweep ever in Boston... July 12, Dave Stieb makes his sixth All-Star game appearance, placing him tied/7th on the All-time pitchers list... September 5, George Bell is named AL Player of the Week for the period ending September 4 and in doing so was the only league player to be twice honored in 1988... September 30, Dave Stieb became the sixth modern ML pitcher to toss consecutive one hitters... October 2, Blue Jays finish the season with a 22-7 September/ October, a club record.

The club played its SkyDome opener on June 5, recording a 17-10 mark for the month. By the All-Star break, the club was tied for fourth place. In early August, Lee Mazzilli and Mookie Wilson were added. With a team record 20 wins in August, the Jays pulled into a first place tie with Baltimore on the last day of the month. Back-to back wins over the Orioles on the last weekend of the season clinched the A.L. East Division title. George Bell (104 RBIs) and Fred McGriff (36 HRs) powered the offence.

In the ALCS, the Jays lost to the Oakland A's in five games.

January 10, Paul Beeston named President of the Blue Jays... April 16, Kelly Gruber becomes the first franchise player to hit for the cycle against Kansas City at Exhibition Stadium... May 15, Jimy Williams is dismissed as manager, replaced on an interim basis by Cito Gaston... It was the club's first managerial change in franchise history to take place during a season... May 28, Blue Jays play their final game at Exhibition Stadium, defeating Chicago 7-5... May 31, Cito Gaston is named as the fifth manager in franchise history... June 3, Blue Jays overcome a 10-0 seventh inning deficit to defeat Boston 13-11 in 12 innings... Blue Jays place a ceiling of 26,000 season tickets at Sky-Dome... June 5, Blue Jays lose 5-3 to Milwaukee in the club's first game at SkyDome... July 9, Blue Jays win 2-0 at Detroit for the club's first-ever sweep at Tiger Stadium... August 4, Dave Stieb loses a perfect game after 8.2 innings when New York's Roberto Kelly doubles... August 31, Blue Jays defeat Chicago 5-1 to move into a first place tie with Baltimore. They would remain in first place for the remainder of the season... September 4, George Bell is named American League Player of the Month for August... September 16, 49,501 watch the Blue Jays defeat the Indians as the Blue Jays set a new American League record for home attendance... September 30, Blue Jays defeat Baltimore 4-3 to capture their second division title in five seasons... October 8, Blue Jays draw 50,024 for Game 5 of the ALCS marking the 41st consecutive sellout at SkyDome... December 17, An era ends as Ernie Whitt is traded to the Atlanta Braves. He was the club's final link with the 1976 Expansion Draft.

The 1990 season did see several rookie ball players make their marks with the club. First baseman John Olerud had 14 HRs and 48 RBIs while Glenallen Hill added 12 HRs in 84 games. Pat Borders was behind the plate when Dave Stieb pitched the first no hitter in franchise history against Cleveland on September 2. Stieb also pitched the 100th complete game of his career in 1990, shutting out Oakland 1-0 on May 28.

April 10, the Blue Jays begin their first full season at SkyDome... June 29, Dave Stewart of Oakland pitches the first No-Hitter in Toronto and at the SkyDome... August 14, George Bell ties a Major League record with 3 Sacrifice Flies in a game vs the White Sox... August 18, Mr. R. Howard Webster, the Blue Jays' Honorary Chairman passes away at age 80... September 2, Dave Stieb pitches the club's first No-Hitter vs. the Cleveland Indians at Cleveland-final score: Toronto 3, Cleveland 0... September 19, with a crowd of 49,902, the Blue Jays set a Major League season attendance record, breaking the old record set by the L.A. Dodgers in 1982. Thee new record stands at 3,885,284... October 3, Blue Jays set a team record along with the Oakland Athletics for club fielding with a .986 average ... December 5, the Blue Jays make a blockbuster trade with San Diego, trading Tony Fernandez and Fred McGriff for Roberto Alomar and Joe Carter... December 14, Mr. N.E. Hardy steps down as the Blue Jays' Chairman of the Board and CEO and is appointed Honorary Chairman as Mr. William R. Ferguson is named Chairman of the Board and Mr. P.N.T. Widdrington is appointed Vice-Chairman and Chief Executive Officer.

Heros for the Jays included Juan Guzman, who set a team record with 10 consecutive victories, and Joe Carter who drove in 108 runs.

Roberto Alomar led all regulars with a .295 batting average. Tom Henke had 32 saves while Duane Ward had 23.

Despite losing to the Twins in the ALCS, the season was a successful one for the organization as the jays became the first team in baseball history to draw 4,000,000 fans.

April 8, Toronto opens the season with a 6-2 loss to the defending AL East Champion Boston Red Sox... May 1, Blue Jays extend radio contract with CJCL through 1994 and in Texas, Nolan Ryan tosses his seventh career No-Hitter (first vs. Blue Jays)... It was the third No-Hitter vs. the Blue Jays... July 1, Joe Carter named American League Player of the Month for June (.352, 11 HR, 29 RBI)... July 9, 52,382 fans watch the 62nd All-Star Game in Toronto as the American League defeated the National League 4-2. Toronto pitcher Jimmy Key was credited with the win in the game... August 13, Tom Henke's streak of consecutive saves comes to an end with a Paul Molitor home run in the ninth. Henke still sets a Major League mark for consecutive saves with 25... October 1, Juan Guzman sets a club record for consecutive wins by a Blue Jays starter with his 10th vs. California... October 2, Toronto clinches the AL East with a come-from-behind 6-5 win over the Angels at the SkyDome in the final game of the regular season... Toronto also surpasses 4-million mark in attendance, becoming the first club ever to break 4-million (4,001,526)... October 31, John Labatt Limited purchases portion of club owned by Imperial Trust and thus obtained a 90% ownership of the club (10% Canadian Imperial Bank of Commerce)... December 13, Mr. Peter N.T. Widdrington is appointed Chairman of the Board for the Blue Jays and Mr. Paul Beeston is appointed Chief Executive Officer... December 18, Toronto signs pitcher Jack Morris to the richest contract in Blue Jays history... December 19, outfielder Dave Winfield agrees to a one-year deal with Toronto.