| 07/01/1986 | Drafted in the 1986 first-year player draft (Round 7, Pick 15, 174th overall pick) by the Philadelphia Phillies. |
| 01/01/1987 | OSA scouting updated ratings (potential): Stuff: 57 (71); Movement: 32 (66); Control: 2 (2). |
| 07/08/1987 | Injured (heel soreness), day-to-day for 1 day. |
| 01/01/1988 | OSA scouting updated ratings (potential): Stuff: 69 (76); Movement: 37 (66); Control: 2 (2). |
| 01/01/1989 | OSA scouting updated ratings (potential): Stuff: 76 (84); Movement: 41 (66); Control: 3 (3). |
| 06/18/1989 | Injured (sore back), day-to-day for 2 days. |
| 01/01/1990 | OSA scouting updated ratings (potential): Stuff: 87 (89); Movement: 53 (67); Control: 3 (1). |
| 01/01/1991 | OSA scouting updated ratings (potential): Stuff: 95 (90); Movement: 64 (65); Control: 5 (6). |
| 04/20/1991 | Injured (strained forearm), out for one week. |
| 12/01/1991 | Drafted in the rule 5 draft (Round 1, Pick 10, 10th overall Pick) by the California Angels, from the Philadelphia Phillies. |
| 01/01/1992 | OSA scouting updated ratings (potential): Stuff: 99 (96); Movement: 67 (67); Control: 11 (17). |
| 05/01/1992 | Released by the California Angels. |
| 05/03/1992 | Signed a 1-year minor league contract with the Orlando Twins organization. |
| 11/26/1992 | Received a 1-year contract worth a total of $300,000 through automatic renewal. |
| 01/01/1993 | OSA scouting updated ratings (potential): Stuff: 100 (97); Movement: 69 (69); Control: 10 (11). |
| 03/21/1993 | Injured (sprained ankle), day-to-day for 3 days. |
| 01/01/1994 | OSA scouting updated ratings (potential): Stuff: 102 (99); Movement: 65 (65); Control: 11 (11). |
| 07/13/1994 | Injured (gout), out for 1 day. |
| 01/01/1995 | OSA scouting updated ratings (potential): Stuff: 102 (100); Movement: 67 (66); Control: 12 (11). |
| 03/16/1995 | Injured (dizziness and nausea), day-to-day for 4 days. |
| 04/11/1995 | Injured on 04/10/1995, diagnosed with a finger blister, is day-to-day. |
| 11/17/1995 | Received a 1-year contract worth a total of $300,000 through automatic renewal. |
| 01/01/1996 | OSA scouting updated ratings (potential): Stuff: 100 (100); Movement: 72 (72); Control: 13 (12). |
| 11/08/1996 | Received a 1-year contract worth a total of $450,000 through arbitration. |
| 01/01/1997 | OSA scouting updated ratings (potential): Stuff: 106 (105); Movement: 72 (73); Control: 14 (16). |
| 08/27/1997 | Pitches a NO-HITTER against the Buffalo Mets with 13 strikeouts and 2 BB allowed! |