Bob Welch
| Date | Team | Opponent | Result | IP | H | R | ER | BB | SO | PA | 2B | 3B | HR | GO | FO | MISC |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1991-04-10 | OAK | vs. MIN | L, 4-1 | 9.0 | 6 | 4 | 3 | 1 | 5 | 34 | 0 | 0 | 1 | 9 | 11 | SP, L, CG |
| 1991-04-15 | OAK | @ CAL | W, 5-2 | 8.0 | 7 | 2 | 2 | 2 | 4 | 32 | 0 | 0 | 0 | 8 | 10 | SP, W |
| 1991-04-20 | OAK | @ SEA | L, 3-2 | 7.2 | 5 | 0 | 0 | 2 | 0 | 29 | 0 | 0 | 0 | 10 | 12 | SP |
| 1991-04-26 | OAK | vs. CAL | W, 4-1 | 8.0 | 5 | 1 | 1 | 0 | 0 | 32 | 0 | 0 | 0 | 11 | 12 | SP, W |
| 1991-04-30 | OAK | vs. NYY | W, 7-3 | 7.1 | 8 | 2 | 2 | 1 | 4 | 29 | 1 | 0 | 1 | 7 | 9 | SP, W |
| 1991-05-05 | OAK | vs. CLE | L, 15-6 | 4.2 | 13 | 11 | 8 | 2 | 4 | 30 | 3 | 1 | 1 | 2 | 7 | SP, L |
| 1991-05-10 | OAK | @ NYY | L, 5-3 | 6.1 | 5 | 3 | 3 | 6 | 2 | 28 | 0 | 0 | 0 | 9 | 6 | SP |
| 1991-05-15 | OAK | @ BAL | W, 6-3 | 5.1 | 5 | 3 | 3 | 3 | 3 | 25 | 0 | 0 | 3 | 9 | 4 | SP, W |
| 1991-05-20 | OAK | vs. TOR | L, 1-0 | 9.0 | 4 | 1 | 1 | 1 | 3 | 31 | 2 | 0 | 0 | 12 | 10 | SP, L, CG |
| 1991-05-25 | OAK | vs. CHW | W, 5-3 | 8.0 | 5 | 3 | 3 | 4 | 4 | 32 | 0 | 1 | 1 | 8 | 10 | SP |
| 1991-05-30 | OAK | @ TOR | W, 8-6 | 5.0 | 7 | 6 | 6 | 5 | 0 | 28 | 0 | 0 | 2 | 9 | 6 | SP |
| 1991-06-04 | OAK | vs. MIL | W, 4-3 | 8.0 | 4 | 3 | 3 | 3 | 3 | 31 | 2 | 0 | 0 | 9 | 11 | SP, W |
| 1991-06-09 | OAK | vs. BOS | W, 8-0 | 9.0 | 5 | 0 | 0 | 1 | 2 | 33 | 0 | 0 | 0 | 12 | 12 | SP, W, CG, SHO |
| 1991-06-18 | OAK | @ DET | L, 2-0 | 8.0 | 3 | 2 | 2 | 2 | 3 | 28 | 1 | 0 | 0 | 8 | 10 | SP, L, CG |
| 1991-06-23 | OAK | @ BOS | W, 4-2 | 7.1 | 5 | 2 | 2 | 3 | 4 | 28 | 1 | 1 | 1 | 4 | 12 | SP, W |
| 1991-06-28 | OAK | vs. KCR | L, 11-0 | 3.0 | 9 | 9 | 8 | 3 | 1 | 22 | 1 | 0 | 1 | 1 | 7 | SP, L |
| 1991-07-02 | OAK | @ TEX | L, 9-6 | 4.0 | 10 | 6 | 3 | 0 | 3 | 21 | 1 | 0 | 3 | 4 | 4 | SP |
| 1991-07-06 | OAK | @ KCR | W, 9-7 | 6.2 | 8 | 5 | 5 | 0 | 6 | 28 | 0 | 0 | 3 | 3 | 10 | SP, W |
| 1991-07-12 | OAK | vs. BAL | L, 6-3 | 3.2 | 7 | 3 | 3 | 2 | 3 | 19 | 3 | 0 | 0 | 1 | 6 | SP |
| 1991-07-17 | OAK | vs. CLE | L, 2-1 | 9.0 | 4 | 2 | 2 | 1 | 7 | 31 | 0 | 0 | 1 | 16 | 3 | SP, L, CG |
| 1991-07-23 | OAK | @ CLE | W, 10-7 | 5.0 | 9 | 3 | 3 | 3 | 2 | 24 | 2 | 0 | 0 | 4 | 5 | SP |
| 1991-07-28 | OAK | @ BAL | W, 4-3 | 6.0 | 7 | 3 | 3 | 4 | 3 | 28 | 1 | 0 | 0 | 5 | 9 | SP |
| 1991-08-02 | OAK | vs. MIN | W, 3-1 | 9.0 | 7 | 1 | 1 | 2 | 5 | 33 | 2 | 0 | 0 | 6 | 11 | SP, W, CG |
| 1991-08-07 | OAK | vs. SEA | W, 6-1 | 7.0 | 5 | 1 | 1 | 3 | 1 | 28 | 0 | 0 | 0 | 10 | 8 | SP, W |
| 1991-08-12 | OAK | @ SEA | L, 6-3 | 7.0 | 5 | 5 | 4 | 3 | 0 | 28 | 0 | 0 | 2 | 10 | 9 | SP, L |
| 1991-08-17 | OAK | @ MIN | L, 12-4 | 5.2 | 11 | 9 | 9 | 4 | 1 | 30 | 2 | 0 | 0 | 9 | 5 | SP, L |
| 1991-08-22 | OAK | vs. CAL | W, 2-1 | 9.0 | 4 | 1 | 1 | 2 | 7 | 33 | 0 | 0 | 1 | 7 | 13 | SP, W, CG |
| 1991-08-27 | OAK | vs. BOS | L, 6-4 | 2.2 | 7 | 5 | 5 | 1 | 1 | 16 | 4 | 0 | 0 | 3 | 4 | SP, L |
| 1991-09-01 | OAK | vs. DET | L, 5-2 | 7.0 | 9 | 3 | 2 | 6 | 3 | 35 | 2 | 0 | 0 | 5 | 12 | SP, L |
| 1991-09-06 | OAK | @ DET | L, 11-2 | 3.1 | 8 | 5 | 5 | 2 | 2 | 20 | 2 | 0 | 1 | 3 | 5 | SP, L |
| 1991-09-14 | OAK | @ TOR | L, 6-0 | 6.0 | 6 | 5 | 5 | 4 | 2 | 27 | 2 | 1 | 1 | 5 | 7 | SP, L |
| 1991-09-20 | OAK | vs. TOR | W, 6-5 | 5.0 | 5 | 4 | 4 | 6 | 4 | 24 | 0 | 0 | 1 | 1 | 8 | SP |
| 1991-09-25 | OAK | vs. KCR | W, 8-4 | 6.2 | 5 | 2 | 2 | 4 | 8 | 28 | 0 | 0 | 1 | 3 | 8 | SP, W |
| 1991-09-30 | OAK | @ KCR | L, 8-4 | 2.0 | 6 | 6 | 6 | 2 | 1 | 14 | 2 | 0 | 0 | 1 | 3 | SP, L |
| 1991-10-05 | OAK | @ TEX | W, 12-5 | 1.2 | 1 | 3 | 1 | 3 | 0 | 11 | 0 | 0 | 0 | 1 | 4 | SP |
| Total Games: 35 | ||||||||||||||||