Jim Umbarger
| Date | Team | Opponent | Result | IP | H | R | ER | BB | SO | PA | 2B | 3B | HR | GO | FO | MISC |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1977-04-10 | OAK | vs. MIN | L, 7-1 | 5.1 | 7 | 5 | 4 | 2 | 3 | 26 | 0 | 0 | 1 | 6 | 6 | SP, L |
| 1977-04-17 | OAK | @ MIN | L, 10-2 | 1.1 | 3 | 5 | 2 | 3 | 0 | 9 | 0 | 0 | 0 | 1 | 2 | SP, L |
| 1977-04-23 | OAK | vs. CHW | W, 3-2 | 6.1 | 6 | 0 | 0 | 5 | 3 | 28 | 0 | 0 | 0 | 6 | 7 | SP, W |
| 1977-04-27 | OAK | @ CAL | W, 7-5 | 1.0 | 3 | 4 | 4 | 2 | 1 | 8 | 0 | 0 | 1 | 0 | 1 | SP |
| 1977-04-30 | OAK | @ BOS | L, 8-4 | 0.0 | 1 | 2 | 2 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | RP |
| 1977-05-04 | OAK | @ BAL | L, 9-2 | 4.2 | 5 | 2 | 2 | 3 | 5 | 21 | 1 | 0 | 1 | 4 | 4 | RP |
| 1977-05-06 | OAK | @ NYY | L, 4-1 | 1.0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 1 | 1 | RP |
| 1977-05-08 | OAK | @ NYY | L, 10-5 | 3.1 | 7 | 2 | 1 | 0 | 1 | 15 | 0 | 0 | 0 | 5 | 1 | RP |
| 1977-05-25 | OAK | @ TOR | W, 6-5 | 4.1 | 6 | 4 | 2 | 5 | 1 | 23 | 0 | 0 | 0 | 3 | 6 | SP |
| 1977-08-08 | OAK | @ TEX | L, 5-2 | 8.0 | 10 | 5 | 5 | 3 | 4 | 37 | 2 | 1 | 0 | 8 | 7 | SP, L, CG |
| 1977-08-15 | OAK | @ CLE | L, 7-2 | 3.0 | 4 | 6 | 5 | 2 | 2 | 15 | 2 | 0 | 0 | 1 | 5 | SP, L |
| 1977-08-23 | OAK | vs. TOR | L, 8-1 | 5.2 | 10 | 5 | 5 | 2 | 4 | 27 | 0 | 0 | 0 | 8 | 3 | SP, L |
| 1977-09-13 | TEX | vs. CAL | L, 12-7 | 0.1 | 0 | 1 | 1 | 1 | 0 | 2 | 0 | 0 | 0 | 1 | 0 | RP, L |
| 1977-09-18 | TEX | vs. MIN | W, 10-8 | 7.2 | 7 | 4 | 4 | 0 | 3 | 29 | 1 | 0 | 2 | 12 | 7 | SP, W |
| 1977-10-01 | TEX | vs. OAK | W, 6-5 | 5.0 | 7 | 3 | 3 | 3 | 2 | 25 | 1 | 0 | 0 | 7 | 6 | SP |
| Date | Team | Opponent | Result | IP | H | R | ER | BB | SO | PA | 2B | 3B | HR | GO | FO | MISC |
| Totals | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ||||
| 162 Game Avg. | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |