Bob Welch
| Date | Team | Opponent | Result | IP | H | R | ER | BB | SO | PA | 2B | 3B | HR | GO | FO | MISC |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1989-04-05 | OAK | vs. SEA | W, 11-1 | 8.0 | 4 | 1 | 1 | 1 | 3 | 29 | 0 | 1 | 1 | 12 | 9 | SP, W |
| 1989-04-10 | OAK | @ CAL | W, 4-0 | 8.0 | 3 | 0 | 0 | 0 | 7 | 27 | 1 | 0 | 0 | 10 | 6 | SP, W |
| 1989-04-15 | OAK | @ CHW | L, 7-4 | 6.1 | 6 | 7 | 2 | 7 | 2 | 33 | 1 | 0 | 1 | 7 | 10 | SP, L |
| 1989-04-21 | OAK | vs. CAL | W, 10-6 | 5.2 | 7 | 4 | 4 | 4 | 9 | 28 | 2 | 0 | 0 | 3 | 5 | SP, W |
| 1989-04-26 | OAK | vs. BAL | L, 2-1 | 7.0 | 3 | 2 | 2 | 3 | 3 | 27 | 1 | 1 | 0 | 12 | 6 | SP, L |
| 1989-05-02 | OAK | @ TOR | W, 8-5 | 6.0 | 6 | 4 | 4 | 2 | 6 | 28 | 2 | 0 | 1 | 8 | 4 | SP |
| 1989-05-07 | OAK | @ DET | W, 5-4 | 6.0 | 6 | 3 | 3 | 4 | 4 | 28 | 0 | 0 | 1 | 6 | 8 | SP, W |
| 1989-05-13 | OAK | vs. MIL | W, 4-3 | 8.1 | 6 | 2 | 2 | 1 | 4 | 31 | 2 | 0 | 1 | 8 | 12 | SP, W |
| 1989-05-18 | OAK | vs. NYY | W, 6-2 | 5.0 | 6 | 2 | 2 | 4 | 5 | 24 | 1 | 0 | 1 | 3 | 6 | SP, W |
| 1989-05-23 | OAK | @ MIL | L, 9-1 | 5.1 | 6 | 4 | 4 | 5 | 4 | 27 | 1 | 1 | 0 | 6 | 5 | SP, L |
| 1989-05-29 | OAK | @ BOS | L, 3-2 | 9.1 | 6 | 3 | 3 | 4 | 2 | 38 | 3 | 0 | 1 | 10 | 14 | SP, L, CG |
| 1989-06-03 | OAK | vs. CLE | W, 7-0 | 8.0 | 7 | 0 | 0 | 0 | 6 | 28 | 0 | 0 | 0 | 8 | 7 | SP, W |
| 1989-06-07 | OAK | vs. MIN | W, 3-2 | 6.1 | 5 | 1 | 1 | 2 | 2 | 25 | 1 | 0 | 0 | 7 | 7 | SP, W |
| 1989-06-12 | OAK | @ KCR | L, 2-1 | 3.2 | 3 | 1 | 1 | 1 | 2 | 15 | 0 | 0 | 1 | 6 | 3 | SP |
| 1989-06-30 | OAK | @ CLE | W, 5-0 | 5.0 | 7 | 0 | 0 | 4 | 3 | 24 | 2 | 0 | 0 | 3 | 7 | SP, W |
| 1989-07-05 | OAK | vs. KCR | L, 12-9 | 3.1 | 8 | 6 | 6 | 2 | 0 | 20 | 2 | 1 | 0 | 5 | 5 | SP |
| 1989-07-09 | OAK | vs. TEX | W, 7-1 | 6.1 | 6 | 1 | 0 | 0 | 5 | 26 | 2 | 0 | 0 | 9 | 4 | SP, W |
| 1989-07-14 | OAK | @ TOR | L, 4-1 | 7.0 | 8 | 4 | 4 | 5 | 5 | 34 | 2 | 1 | 1 | 5 | 9 | SP, L |
| 1989-07-22 | OAK | vs. BAL | W, 3-1 | 7.0 | 5 | 1 | 1 | 2 | 5 | 27 | 0 | 0 | 0 | 6 | 9 | SP, W |
| 1989-07-28 | OAK | vs. SEA | W, 8-7 | 7.0 | 4 | 3 | 2 | 2 | 5 | 27 | 0 | 0 | 0 | 8 | 7 | SP |
| 1989-08-03 | OAK | vs. CHW | L, 6-4 | 6.2 | 8 | 6 | 4 | 3 | 9 | 31 | 3 | 1 | 0 | 4 | 6 | SP, L |
| 1989-08-07 | OAK | @ SEA | L, 5-1 | 7.0 | 11 | 5 | 4 | 3 | 4 | 35 | 4 | 0 | 1 | 4 | 13 | SP, L |
| 1989-08-12 | OAK | @ CAL | W, 8-3 | 5.0 | 5 | 3 | 3 | 4 | 4 | 23 | 3 | 0 | 0 | 3 | 6 | SP, W |
| 1989-08-17 | OAK | vs. CLE | W, 1-0 | 8.0 | 6 | 0 | 0 | 1 | 6 | 30 | 0 | 0 | 0 | 6 | 9 | SP, W |
| 1989-08-22 | OAK | @ TEX | W, 2-0 | 8.0 | 5 | 0 | 0 | 1 | 9 | 27 | 0 | 0 | 0 | 6 | 6 | SP, W |
| 1989-08-27 | OAK | @ KCR | W, 6-0 | 8.0 | 6 | 0 | 0 | 1 | 3 | 28 | 1 | 0 | 0 | 8 | 10 | SP, W |
| 1989-09-01 | OAK | @ MIL | L, 6-5 | 6.0 | 8 | 4 | 3 | 2 | 2 | 27 | 2 | 0 | 1 | 6 | 9 | SP |
| 1989-09-06 | OAK | vs. BOS | W, 7-5 | 5.0 | 5 | 2 | 1 | 2 | 4 | 24 | 1 | 0 | 0 | 7 | 4 | SP, W |
| 1989-09-12 | OAK | vs. MIL | L, 7-6 | 3.2 | 7 | 5 | 5 | 2 | 3 | 19 | 1 | 0 | 1 | 3 | 4 | SP |
| 1989-09-17 | OAK | @ BOS | L, 7-6 | 4.0 | 4 | 5 | 5 | 5 | 3 | 21 | 0 | 0 | 0 | 4 | 4 | SP, L |
| 1989-09-21 | OAK | @ MIN | W, 2-1 | 7.2 | 6 | 1 | 1 | 1 | 1 | 30 | 1 | 0 | 0 | 12 | 9 | SP, W |
| 1989-09-25 | OAK | vs. TEX | L, 3-2 | 7.0 | 5 | 1 | 1 | 0 | 5 | 26 | 2 | 0 | 0 | 9 | 6 | SP |
| 1989-09-30 | OAK | vs. KCR | L, 6-1 | 5.0 | 3 | 1 | 1 | 0 | 2 | 17 | 0 | 0 | 1 | 5 | 7 | SP |
| 1989-10-07 | OAK | @ TOR | W, 6-5 | 5.2 | 8 | 2 | 2 | 1 | 4 | 27 | 1 | 0 | 0 | 4 | 9 | SP, W |
| Total Games: 34 | ||||||||||||||||