Mark Williamson
| Date | Team | Opponent | Result | IP | H | R | ER | BB | SO | PA | 2B | 3B | HR | GO | FO | MISC |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1990-04-22 | BAL | vs. DET | W, 3-2 | 1.1 | 0 | 0 | 0 | 1 | 1 | 6 | 0 | 0 | 0 | 2 | 0 | RP |
| 1990-04-24 | BAL | vs. OAK | L, 7-1 | 1.0 | 0 | 0 | 0 | 0 | 1 | 3 | 0 | 0 | 0 | 1 | 1 | RP |
| 1990-04-25 | BAL | vs. OAK | L, 4-3 | 2.0 | 1 | 0 | 0 | 2 | 1 | 7 | 0 | 0 | 0 | 3 | 0 | RP |
| 1990-04-28 | BAL | vs. SEA | L, 4-3 | 0.2 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 1 | RP |
| 1990-04-29 | BAL | vs. SEA | W, 5-4 | 2.1 | 2 | 0 | 0 | 2 | 2 | 10 | 0 | 0 | 0 | 2 | 2 | RP, W |
| 1990-05-02 | BAL | vs. CAL | L, 3-0 | 1.1 | 0 | 0 | 0 | 0 | 1 | 4 | 0 | 0 | 0 | 2 | 1 | RP |
| 1990-05-04 | BAL | @ SEA | W, 9-8 | 0.1 | 3 | 4 | 3 | 0 | 0 | 5 | 1 | 0 | 2 | 1 | 1 | RP |
| 1990-05-06 | BAL | @ SEA | L, 5-4 | 1.1 | 4 | 1 | 1 | 0 | 2 | 8 | 0 | 1 | 0 | 0 | 2 | RP, L |
| 1990-05-08 | BAL | @ CAL | L, 6-0 | 1.2 | 2 | 0 | 0 | 1 | 0 | 6 | 0 | 0 | 0 | 3 | 0 | RP |
| 1990-05-12 | BAL | @ OAK | W, 3-2 | 1.2 | 1 | 0 | 0 | 1 | 1 | 7 | 0 | 0 | 0 | 1 | 2 | RP, W |
| 1990-05-13 | BAL | @ OAK | W, 4-1 | 0.0 | 0 | 0 | 0 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | RP |
| 1990-05-16 | BAL | @ CHW | L, 4-2 | 2.0 | 0 | 0 | 0 | 1 | 0 | 7 | 0 | 0 | 0 | 2 | 4 | RP |
| 1990-05-17 | BAL | @ CHW | L, 7-3 | 1.2 | 0 | 2 | 1 | 2 | 0 | 8 | 0 | 0 | 0 | 3 | 2 | RP |
| 1990-05-19 | BAL | vs. TEX | L, 5-3 | 1.2 | 2 | 1 | 1 | 0 | 0 | 6 | 0 | 0 | 0 | 3 | 0 | RP |
| 1990-05-22 | BAL | vs. MIN | W, 10-2 | 4.0 | 3 | 0 | 0 | 0 | 1 | 15 | 0 | 0 | 0 | 5 | 5 | RP, W |
| 1990-05-26 | BAL | @ TEX | W, 7-5 | 4.0 | 0 | 0 | 0 | 0 | 3 | 12 | 0 | 0 | 0 | 5 | 4 | RP |
| 1990-05-27 | BAL | @ TEX | W, 9-2 | 0.1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | RP |
| 1990-05-29 | BAL | @ MIN | W, 5-1 | 1.2 | 0 | 0 | 0 | 1 | 0 | 5 | 0 | 0 | 0 | 2 | 1 | RP |
| 1990-06-02 | BAL | @ NYY | W, 4-2 | 2.0 | 1 | 0 | 0 | 1 | 2 | 7 | 0 | 0 | 0 | 2 | 1 | RP |
| 1990-06-03 | BAL | @ NYY | W, 4-3 | 0.0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | RP |
| 1990-06-04 | BAL | @ MIL | W, 6-4 | 1.0 | 1 | 0 | 0 | 1 | 0 | 4 | 1 | 0 | 0 | 1 | 1 | RP |
| 1990-06-06 | BAL | @ MIL | W, 8-7 | 2.0 | 4 | 2 | 2 | 1 | 3 | 11 | 1 | 0 | 0 | 2 | 0 | RP, W |
| 1990-06-08 | BAL | vs. NYY | W, 5-4 | 1.1 | 0 | 0 | 0 | 0 | 1 | 4 | 0 | 0 | 0 | 1 | 2 | RP |
| 1990-06-12 | BAL | vs. MIL | W, 4-3 | 3.1 | 3 | 0 | 0 | 1 | 2 | 14 | 0 | 0 | 0 | 4 | 4 | RP |
| 1990-06-14 | BAL | vs. MIL | L, 8-5 | 2.1 | 1 | 2 | 0 | 1 | 1 | 10 | 0 | 0 | 0 | 4 | 2 | RP |
| 1990-06-16 | BAL | vs. BOS | L, 6-3 | 2.0 | 1 | 1 | 1 | 0 | 2 | 7 | 0 | 0 | 1 | 3 | 1 | RP |
| 1990-06-17 | BAL | vs. BOS | L, 6-5 | 2.0 | 0 | 0 | 0 | 2 | 0 | 8 | 0 | 0 | 0 | 4 | 2 | RP |
| 1990-06-19 | BAL | @ CLE | L, 5-4 | 1.1 | 1 | 0 | 0 | 0 | 3 | 5 | 0 | 0 | 0 | 0 | 1 | RP |
| 1990-06-21 | BAL | @ CLE | L, 4-3 | 0.0 | 0 | 0 | 0 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | RP |
| 1990-06-23 | BAL | @ BOS | L, 4-3 | 1.1 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 1 | 3 | RP |
| 1990-06-27 | BAL | vs. CLE | W, 6-3 | 2.1 | 0 | 0 | 0 | 0 | 1 | 7 | 0 | 0 | 0 | 2 | 4 | RP |
| 1990-07-04 | BAL | @ TEX | W, 9-4 | 1.1 | 2 | 0 | 0 | 1 | 2 | 7 | 0 | 0 | 0 | 1 | 1 | RP |
| 1990-07-08 | BAL | @ CHW | W, 8-6 | 3.0 | 1 | 0 | 0 | 0 | 2 | 10 | 0 | 0 | 0 | 4 | 3 | RP, W |
| 1990-07-11 | BAL | vs. KCR | W, 7-5 | 1.0 | 1 | 0 | 0 | 0 | 0 | 4 | 1 | 0 | 0 | 0 | 3 | RP |
| 1990-07-13 | BAL | vs. MIN | W, 8-5 | 2.0 | 2 | 0 | 0 | 0 | 1 | 8 | 1 | 0 | 0 | 4 | 1 | RP, W |
| 1990-07-14 | BAL | vs. MIN | W, 3-2 | 3.2 | 0 | 0 | 0 | 1 | 4 | 12 | 0 | 0 | 0 | 3 | 4 | RP, W |
| 1990-07-18 | BAL | vs. TEX | L, 7-1 | 1.0 | 1 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 2 | 1 | RP |
| 1990-07-20 | BAL | vs. CHW | W, 3-2 | 3.0 | 1 | 0 | 0 | 2 | 0 | 12 | 0 | 0 | 0 | 2 | 4 | RP, W |
| 1990-07-23 | BAL | @ DET | W, 13-3 | 1.1 | 2 | 1 | 1 | 0 | 3 | 6 | 2 | 0 | 0 | 0 | 1 | RP |
| 1990-07-25 | BAL | @ DET | L, 4-3 | 1.0 | 1 | 1 | 1 | 0 | 2 | 4 | 0 | 0 | 1 | 1 | 0 | RP |
| 1990-07-28 | BAL | @ KCR | L, 10-9 | 1.2 | 3 | 2 | 2 | 0 | 0 | 8 | 0 | 0 | 1 | 2 | 3 | RP, L |
| 1990-07-30 | BAL | vs. TOR | L, 9-2 | 2.0 | 2 | 2 | 2 | 0 | 2 | 8 | 1 | 0 | 1 | 3 | 1 | RP |
| 1990-08-01 | BAL | vs. TOR | L, 7-4 | 2.1 | 3 | 1 | 1 | 0 | 4 | 10 | 1 | 0 | 1 | 2 | 1 | RP |
| 1990-08-04 | BAL | vs. KCR | L, 9-1 | 2.2 | 5 | 2 | 2 | 0 | 3 | 11 | 0 | 0 | 1 | 3 | 0 | RP |
| 1990-08-08 | BAL | @ OAK | W, 4-1 | 0.2 | 0 | 0 | 0 | 2 | 0 | 4 | 0 | 0 | 0 | 1 | 1 | RP |
| 1990-08-11 | BAL | @ CAL | L, 12-4 | 2.0 | 3 | 1 | 1 | 0 | 1 | 9 | 2 | 0 | 0 | 2 | 3 | RP |
| 1990-08-12 | BAL | @ CAL | W, 11-6 | 3.1 | 5 | 2 | 2 | 0 | 4 | 15 | 1 | 1 | 0 | 3 | 3 | RP, SV |
| 1990-08-15 | BAL | @ SEA | L, 2-0 | 2.0 | 2 | 0 | 0 | 0 | 2 | 9 | 1 | 0 | 0 | 2 | 1 | RP |
| 1990-08-18 | BAL | vs. OAK | L, 3-1 | 1.1 | 0 | 0 | 0 | 0 | 1 | 4 | 0 | 0 | 0 | 1 | 2 | RP |
| Total Games: 49 | ||||||||||||||||