| Player History |
| 06-15-1979 | Drafted in the 1979 first-year player draft (Round 1, Pick 1, 1st overall Pick) by the Toronto Blue Jays. |
| 09-11-1979 | Won the 1979 MLB Triple A Round 3 with the Plano Armageddon! |
| 01-01-1980 | SISA scouting updated ratings (potential): Stuff: 2 (8); Movement: 9 (10); Control: 7 (7). |
| 11-22-1980 | Received a 1-year contract worth a total of $300,000 through automatic renewal. |
| 01-01-1981 | SISA scouting updated ratings (potential): Stuff: 3 (6); Movement: 7 (7); Control: 5 (5). |
| 11-21-1981 | Received a 1-year contract worth a total of $300,000 through automatic renewal. |
| 01-01-1982 | SISA scouting updated ratings (potential): Stuff: 5 (5); Movement: 8 (8); Control: 5 (5). |
| 09-01-1982 | Injured (tender shoulder), day-to-day for 1-2 weeks. |
| 11-22-1982 | Received a 1-year contract worth a total of $300,000 through automatic renewal. |
| 01-01-1983 | SISA scouting updated ratings (potential): Stuff: 6 (6); Movement: 8 (8); Control: 6 (6). |
| 05-27-1983 | Injured (tender elbow), out for 2 weeks. |
| 08-01-1983 | Wins the MLB AL Pitcher of the Month Award. |
| 09-15-1983 | Injured (torn back muscle), out for 2 months. |
| 11-20-1983 | Received a 1-year contract worth a total of $3,450,600 through arbitration. |
| 01-01-1984 | SISA scouting updated ratings (potential): Stuff: 6 (6); Movement: 7 (7); Control: 5 (5). |
| 06-29-1984 | Was selected to the 1984 Major League Baseball All-Star Game. |
| 11-15-1984 | Received a 1-year contract worth a total of $3,739,200 through arbitration. |
| 01-01-1985 | SISA scouting updated ratings (potential): Stuff: 7 (7); Movement: 8 (8); Control: 6 (6). |
| 03-02-1985 | Injured (strained bicep muscle), day-to-day for 2 weeks. |
| 06-29-1985 | Was selected to the 1985 Major League Baseball All-Star Game. |
| 11-07-1985 | Wins the 1985 MLB AL Cy Young. |
| 11-15-1985 | Received a 1-year contract worth a total of $4,440,000 through arbitration. |
| 01-01-1986 | SISA scouting updated ratings (potential): Stuff: 7 (7); Movement: 8 (8); Control: 6 (6). |
| 06-29-1986 | Was selected to the 1986 Major League Baseball All-Star Game. |
| 08-01-1986 | Signed a 3-year contract extension worth a total of $31,290,000 with the Toronto Blue Jays organization. |
| 09-01-1986 | Pitches a 4-hit shutout against the Seattle Mariners with 7 strikeouts and 0 BB allowed! |
| 01-01-1987 | SISA scouting updated ratings (potential): Stuff: 7 (7); Movement: 7 (7); Control: 7 (7). |
| 06-26-1987 | Injured (ruptured bicep tendon), out for 7 months. |
| 01-01-1988 | OSA scouting updated ratings (potential): Stuff: 6 (6); Movement: 7 (7); Control: 7 (7). |