Bob Welch
| Date | Team | Opponent | Result | IP | H | R | ER | BB | SO | PA | 2B | 3B | HR | GO | FO | MISC |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1990-04-10 | OAK | vs. MIN | W, 5-3 | 5.1 | 6 | 1 | 1 | 1 | 1 | 22 | 2 | 0 | 1 | 9 | 4 | SP, W |
| 1990-04-15 | OAK | @ SEA | W, 3-0 | 6.1 | 3 | 0 | 0 | 1 | 3 | 22 | 0 | 0 | 0 | 10 | 5 | SP, W |
| 1990-04-20 | OAK | vs. SEA | L, 6-1 | 7.0 | 6 | 2 | 2 | 3 | 2 | 28 | 1 | 2 | 0 | 6 | 11 | SP, L |
| 1990-04-25 | OAK | @ BAL | W, 4-3 | 6.1 | 2 | 2 | 1 | 2 | 3 | 23 | 0 | 0 | 1 | 5 | 11 | SP |
| 1990-04-30 | OAK | @ NYY | W, 6-0 | 9.0 | 6 | 0 | 0 | 0 | 4 | 31 | 0 | 0 | 0 | 12 | 9 | SP, W, CG, SHO |
| 1990-05-05 | OAK | vs. BOS | L, 5-1 | 8.0 | 6 | 5 | 4 | 3 | 2 | 32 | 2 | 1 | 1 | 11 | 9 | SP, L |
| 1990-05-11 | OAK | vs. BAL | W, 5-0 | 9.0 | 5 | 0 | 0 | 2 | 8 | 33 | 2 | 0 | 0 | 10 | 7 | SP, W, CG, SHO |
| 1990-05-16 | OAK | @ CLE | W, 7-6 | 7.0 | 7 | 6 | 3 | 4 | 1 | 32 | 1 | 0 | 2 | 11 | 6 | SP |
| 1990-05-21 | OAK | @ TOR | W, 4-1 | 7.2 | 5 | 1 | 1 | 4 | 8 | 31 | 1 | 0 | 1 | 6 | 7 | SP, W |
| 1990-05-26 | OAK | vs. CLE | W, 6-3 | 7.0 | 9 | 3 | 3 | 2 | 1 | 30 | 1 | 0 | 0 | 9 | 9 | SP, W |
| 1990-05-31 | OAK | @ KCR | W, 6-4 | 5.2 | 8 | 3 | 3 | 1 | 3 | 25 | 0 | 0 | 1 | 5 | 7 | SP, W |
| 1990-06-05 | OAK | @ TEX | W, 7-4 | 7.0 | 7 | 4 | 4 | 0 | 5 | 28 | 3 | 1 | 2 | 8 | 8 | SP, W |
| 1990-06-10 | OAK | vs. KCR | W, 3-2 | 7.2 | 7 | 2 | 2 | 4 | 5 | 33 | 2 | 0 | 0 | 9 | 7 | SP, W |
| 1990-06-15 | OAK | @ CHW | W, 5-4 | 7.0 | 7 | 4 | 4 | 6 | 2 | 33 | 1 | 0 | 0 | 5 | 12 | SP, W |
| 1990-06-20 | OAK | @ DET | W, 12-7 | 6.0 | 6 | 2 | 1 | 0 | 0 | 23 | 1 | 0 | 0 | 8 | 9 | SP, W |
| 1990-06-25 | OAK | vs. DET | W, 4-3 | 8.0 | 5 | 3 | 3 | 4 | 4 | 32 | 2 | 0 | 1 | 10 | 9 | SP, W |
| 1990-06-30 | OAK | @ TOR | W, 9-4 | 6.2 | 9 | 4 | 4 | 1 | 5 | 29 | 2 | 0 | 2 | 9 | 5 | SP, W |
| 1990-07-05 | OAK | @ MIL | L, 4-3 | 3.0 | 5 | 4 | 4 | 1 | 1 | 14 | 1 | 0 | 2 | 3 | 4 | SP, L |
| 1990-07-14 | OAK | vs. MIL | W, 3-1 | 7.1 | 5 | 1 | 0 | 4 | 8 | 30 | 2 | 0 | 0 | 6 | 7 | SP, W |
| 1990-07-18 | OAK | vs. CLE | W, 4-1 | 8.0 | 6 | 1 | 1 | 1 | 1 | 30 | 1 | 0 | 1 | 7 | 15 | SP, W |
| 1990-07-24 | OAK | vs. CAL | W, 5-3 | 6.0 | 8 | 2 | 2 | 5 | 8 | 30 | 0 | 0 | 1 | 6 | 1 | SP, W |
| 1990-07-28 | OAK | @ MIN | L, 9-4 | 2.0 | 7 | 7 | 7 | 3 | 2 | 17 | 0 | 1 | 0 | 2 | 2 | SP, L |
| 1990-08-02 | OAK | @ CAL | W, 7-5 | 5.1 | 6 | 4 | 4 | 4 | 3 | 25 | 1 | 0 | 1 | 5 | 7 | SP, W |
| 1990-08-07 | OAK | vs. BAL | W, 3-2 | 7.0 | 7 | 2 | 2 | 1 | 6 | 29 | 2 | 0 | 0 | 6 | 8 | SP, W |
| 1990-08-12 | OAK | vs. NYY | W, 6-1 | 7.1 | 4 | 1 | 1 | 4 | 4 | 29 | 0 | 0 | 0 | 6 | 11 | SP, W |
| 1990-08-17 | OAK | @ BAL | W, 8-3 | 8.0 | 9 | 3 | 3 | 2 | 3 | 33 | 0 | 0 | 2 | 11 | 7 | SP, W |
| 1990-08-22 | OAK | @ CHW | W, 7-1 | 7.0 | 4 | 1 | 1 | 2 | 4 | 26 | 1 | 0 | 0 | 9 | 7 | SP, W |
| 1990-08-26 | OAK | @ DET | L, 7-3 | 4.2 | 7 | 6 | 6 | 2 | 3 | 23 | 3 | 0 | 2 | 5 | 5 | SP, L |
| 1990-08-31 | OAK | vs. TEX | W, 4-2 | 7.1 | 6 | 2 | 1 | 1 | 8 | 29 | 1 | 0 | 1 | 6 | 8 | SP, W |
| 1990-09-05 | OAK | @ BOS | W, 10-0 | 8.0 | 5 | 0 | 0 | 0 | 4 | 28 | 1 | 1 | 0 | 10 | 9 | SP, W |
| 1990-09-10 | OAK | @ SEA | L, 5-2 | 6.2 | 8 | 5 | 5 | 3 | 3 | 30 | 1 | 0 | 1 | 11 | 5 | SP, L |
| 1990-09-15 | OAK | vs. MIN | W, 4-1 | 8.0 | 2 | 1 | 0 | 1 | 3 | 28 | 0 | 0 | 0 | 3 | 16 | SP, W |
| 1990-09-21 | OAK | vs. DET | W, 6-5 | 7.0 | 5 | 2 | 2 | 2 | 5 | 28 | 2 | 0 | 0 | 8 | 8 | SP, W |
| 1990-09-26 | OAK | @ KCR | W, 3-2 | 7.2 | 9 | 2 | 2 | 2 | 1 | 34 | 3 | 0 | 2 | 11 | 11 | SP, W |
| 1990-10-02 | OAK | vs. CAL | W, 6-4 | 7.0 | 7 | 4 | 1 | 1 | 3 | 29 | 2 | 0 | 1 | 4 | 12 | SP, W |
| 1990-10-07 | OAK | @ BOS | W, 4-1 | 7.1 | 6 | 1 | 1 | 3 | 4 | 31 | 2 | 0 | 0 | 12 | 5 | SP, W |
| 1990-10-17 | OAK | @ CIN | L, 5-4 | 7.1 | 9 | 4 | 4 | 2 | 2 | 31 | 4 | 1 | 0 | 9 | 9 | SP |
| Total Games: 37 | ||||||||||||||||