| Player History |
| 05-18-1977 | Drafted in 1st round, 20th overall pick, by Kansas City in 1977. |
| 04-26-1978 | Injured (bruised ankle), day-to-day for 5 days. |
| 05-06-1978 | Injured (inguinal hernia), out for 3-4 weeks. |
| 05-08-1978 | Wins the MLBAAA SL1 Player of the Week Award. |
| 06-26-1978 | Wins the MLBAAA SL1 Player of the Week Award. |
| 01-01-1979 | SISA scouting updated ratings (potential): Contact: 8 (8); Power: 3 (3); Eye: 5 (5). |
| 08-06-1979 | Wins the MLBAAA SL1 Player of the Week Award. |
| 01-01-1980 | SISA scouting updated ratings (potential): Contact: 5 (5); Power: 3 (4); Eye: 6 (7). |
| 05-21-1980 | Injured (bruised wrist), day-to-day for 6 days. |
| 06-04-1980 | Was selected to the 1980 MLB Triple A All-Star Game. |
| 01-01-1981 | SISA scouting updated ratings (potential): Contact: 8 (8); Power: 6 (7); Eye: 6 (6). |
| 04-19-1981 | Injured (dead arm syndrome), out for 2 weeks. |
| 05-29-1981 | Injured (strained hamstring muscle), out for 1-2 weeks. |
| 06-04-1981 | Was selected to the 1981 MLB Triple A All-Star Game. |
| 08-18-1981 | Injured (flu), out for 1-2 weeks. |
| 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): Contact: 7 (7); Power: 4 (4); Eye: 7 (7). |
| 06-29-1982 | Was selected to the 1982 Major League Baseball All-Star Game. |
| 11-12-1982 | Wins the 1982 MLB AL MVP. |
| 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): Contact: 6 (6); Power: 5 (5); Eye: 5 (5). |
| 06-29-1983 | Was selected to the 1983 Major League Baseball All-Star Game. |
| 11-23-1983 | Received a 1-year contract worth a total of $300,000 through automatic renewal. |
| 01-01-1984 | SISA scouting updated ratings (potential): Contact: 6 (6); Power: 5 (5); Eye: 7 (7). |
| 11-15-1984 | Received a 1-year contract worth a total of $4,444,000 through arbitration. |
| 01-01-1985 | SISA scouting updated ratings (potential): Contact: 7 (7); Power: 5 (5); Eye: 7 (7). |
| 09-04-1985 | Signed a 4-year contract extension worth a total of $46,970,000 with the Kansas City Royals organization. |
| 09-23-1985 | Wins the MLB AL Player of the Week Award. |
| 01-01-1986 | SISA scouting updated ratings (potential): Contact: 5 (5); Power: 5 (5); Eye: 7 (8). |
| 01-01-1987 | SISA scouting updated ratings (potential): Contact: 6 (6); Power: 5 (5); Eye: 7 (8). |
| 01-01-1988 | OSA scouting updated ratings (potential): Contact: 7 (7); Power: 6 (6); Eye: 7 (7). |
| 01-01-1989 | OSA scouting updated ratings (potential): Contact: 7 (7); Power: 6 (6); Eye: 9 (9). |