| 07/01/1986 | Drafted in the 1986 first-year player draft (Round 3, Pick 1, 53rd overall pick) by the Pittsburgh Pirates. |
| 07/10/1986 | Signed a minor league contract with the Pittsburgh Pirates organization with a signing bonus of $150,000. |
| 01/01/1987 | OSA scouting updated ratings (potential): Stuff: 40 (40); Movement: 46 (82); Control: 12 (57). |
| 06/09/1987 | Injured (elbow inflammation), out for 2 months. |
| 01/01/1988 | OSA scouting updated ratings (potential): Stuff: 47 (47); Movement: 51 (82); Control: 19 (70). |
| 04/04/1988 | Named the #38 prospect in the ML |
| 06/23/1988 | Was traded by the Pittsburgh Pirates to the New York Mets, along with MR Israel Sanchez, a 1st draft pick, in exchange for SP Rick Rhoden, $3,000,000. |
| 07/06/1988 | Injured (mild oblique strain), day-to-day for 2 days. |
| 01/01/1989 | OSA scouting updated ratings (potential): Stuff: 47 (47); Movement: 62 (81); Control: 19 (70). |
| 04/03/1989 | Named the #35 prospect in the ML |
| 04/16/1989 | Injured (calf strain), out for 3-4 weeks. |
| 06/30/1989 | Was traded by the New York Mets to the Montreal Expos, along with SP Andy Ashby, SS John Valentin, RF Brian Jordan, in exchange for RF Rickey Henderson, SP Tom Browning. |
| 07/14/1989 | Injured (torn meniscus (knee)), out for 8-9 weeks. |
| 01/01/1990 | OSA scouting updated ratings (potential): Stuff: 48 (46); Movement: 77 (82); Control: 23 (70). |
| 01/01/1990 | Was traded by the Montreal Expos to the Los Angeles Dodgers, along with SP Steve Parris, a 1st draft pick, in exchange for C Greg Myers. |
| 04/02/1990 | Named the #20 prospect in the ML |
| 07/03/1990 | Pitches a 6-hit shutout against the Newark Orioles with 6 strikeouts and 3 BB allowed! |
| 01/01/1991 | OSA scouting updated ratings (potential): Stuff: 48 (46); Movement: 81 (85); Control: 30 (70). |
| 04/08/1991 | Named the #15 prospect in the ML |
| 05/16/1991 | Injured on 05/15/1991, diagnosed with a sore thumb, is day-to-day. |
| 07/21/1991 | Injured (finger blister), day-to-day for 3 days. |
| 08/06/1991 | Injured (dead arm), out for one week. |
| 01/01/1992 | OSA scouting updated ratings (potential): Stuff: 48 (46); Movement: 85 (87); Control: 30 (70). |
| 04/24/1992 | Injured (hamstring soreness), out for 2 days. |
| 06/04/1992 | Injured on 06/01/1992, diagnosed with a partially torn ulnar collateral ligament, will miss 10-11 months. |
| 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: 48 (44); Movement: 88 (86); Control: 34 (70). |
| 10/25/1993 | Won the 1993 Major League Baseball World Series with the Los Angeles Dodgers! |
| 11/19/1993 | Received a 1-year contract worth a total of $300,000 through automatic renewal. |
| 01/01/1994 | OSA scouting updated ratings (potential): Stuff: 48 (44); Movement: 87 (85); Control: 40 (70). |
| 05/07/1994 | Injured (hamstring soreness), out for 6 days. |
| 11/21/1994 | Received a 1-year contract worth a total of $300,000 through automatic renewal. |
| 01/01/1995 | OSA scouting updated ratings (potential): Stuff: 47 (44); Movement: 88 (86); Control: 47 (70). |
| 06/26/1995 | Injured (food poisoning), out for 2 days. |
| 11/14/1995 | Received a 1-year contract worth a total of $460,000 through arbitration. |
| 01/01/1996 | OSA scouting updated ratings (potential): Stuff: 44 (44); Movement: 86 (85); Control: 48 (46). |
| 11/08/1996 | Received a 1-year contract worth a total of $550,000 through arbitration. |
| 01/01/1997 | OSA scouting updated ratings (potential): Stuff: 44 (44); Movement: 84 (83); Control: 46 (47). |
| 07/03/1997 | Pitches a 4-hit shutout against the San Francisco Giants with 3 strikeouts and 2 BB allowed! |
| 11/16/1997 | Received a 1-year contract worth a total of $650,000 through arbitration. |
| 01/01/1998 | OSA scouting updated ratings (potential): Stuff: 44 (44); Movement: 83 (82); Control: 49 (49). |
| 04/13/1998 | Injured (rotator cuff tendinitis), out for 3-4 weeks. |