Jesse Jefferson
| Date | Team | Opponent | Result | IP | H | R | ER | BB | SO | PA | 2B | 3B | HR | GO | FO | MISC |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1980-04-09 | TOR | @ SEA | L, 8-6 | 2.0 | 3 | 2 | 2 | 0 | 0 | 9 | 0 | 0 | 1 | 3 | 2 | RP |
| 1980-04-22 | TOR | @ KCR | L, 7-2 | 2.1 | 4 | 4 | 4 | 1 | 1 | 12 | 1 | 0 | 0 | 3 | 3 | RP |
| 1980-04-30 | TOR | vs. KCR | L, 3-0 | 7.2 | 3 | 2 | 2 | 1 | 2 | 26 | 0 | 0 | 1 | 10 | 8 | SP, L |
| 1980-05-04 | TOR | vs. CLE | W, 7-2 | 5.2 | 6 | 2 | 2 | 4 | 3 | 27 | 1 | 0 | 0 | 6 | 7 | SP, W |
| 1980-05-11 | TOR | @ OAK | L, 12-1 | 1.2 | 3 | 3 | 3 | 1 | 1 | 9 | 0 | 0 | 1 | 2 | 2 | RP |
| 1980-05-16 | TOR | vs. OAK | W, 1-0 | 11.0 | 4 | 0 | 0 | 4 | 10 | 41 | 1 | 0 | 0 | 3 | 19 | SP, W, CG, SHO |
| 1980-05-21 | TOR | vs. BOS | L, 11-2 | 3.0 | 5 | 5 | 5 | 2 | 1 | 16 | 0 | 0 | 2 | 5 | 3 | SP, L |
| 1980-05-26 | TOR | @ BOS | W, 3-1 | 6.1 | 7 | 1 | 1 | 3 | 2 | 28 | 0 | 0 | 0 | 5 | 9 | SP |
| 1980-05-31 | TOR | @ NYY | L, 8-6 | 2.0 | 6 | 4 | 4 | 0 | 0 | 12 | 1 | 0 | 2 | 3 | 3 | SP |
| 1980-06-02 | TOR | vs. CAL | L, 6-3 | 4.2 | 3 | 0 | 0 | 1 | 4 | 17 | 0 | 0 | 0 | 5 | 4 | RP |
| 1980-06-08 | TOR | @ MIN | L, 5-1 | 3.0 | 6 | 4 | 3 | 2 | 0 | 18 | 3 | 0 | 0 | 5 | 3 | SP, L |
| 1980-06-16 | TOR | vs. MIN | L, 4-0 | 6.2 | 10 | 4 | 4 | 1 | 2 | 29 | 3 | 0 | 0 | 8 | 7 | SP, L |
| 1980-06-21 | TOR | @ TEX | L, 2-1 | 6.0 | 8 | 1 | 1 | 0 | 1 | 25 | 1 | 0 | 0 | 7 | 6 | SP |
| 1980-06-27 | TOR | vs. DET | L, 7-2 | 0.1 | 3 | 5 | 4 | 1 | 0 | 6 | 1 | 0 | 1 | 0 | 0 | SP, L |
| 1980-06-30 | TOR | vs. BAL | L, 9-7 | 2.1 | 5 | 2 | 2 | 2 | 0 | 13 | 1 | 1 | 0 | 3 | 3 | RP |
| 1980-07-12 | TOR | vs. MIL | L, 9-2 | 2.0 | 2 | 0 | 0 | 0 | 1 | 8 | 1 | 0 | 0 | 3 | 2 | RP |
| 1980-07-13 | TOR | vs. MIL | L, 4-0 | 3.0 | 2 | 0 | 0 | 1 | 1 | 11 | 2 | 0 | 0 | 2 | 4 | RP |
| 1980-07-17 | TOR | @ SEA | L, 5-3 | 3.0 | 2 | 2 | 2 | 1 | 2 | 12 | 0 | 0 | 1 | 4 | 3 | RP, L |
| 1980-07-22 | TOR | @ OAK | W, 6-2 | 6.1 | 5 | 2 | 2 | 4 | 4 | 27 | 0 | 0 | 1 | 7 | 7 | SP, W |
| 1980-07-27 | TOR | vs. SEA | W, 5-0 | 9.0 | 2 | 0 | 0 | 3 | 3 | 31 | 0 | 0 | 0 | 14 | 8 | SP, W, CG, SHO |
| 1980-08-01 | TOR | vs. CAL | W, 9-8 | 2.1 | 5 | 5 | 5 | 2 | 1 | 14 | 0 | 0 | 1 | 5 | 1 | SP |
| 1980-08-02 | TOR | vs. CAL | L, 5-4 | 3.2 | 3 | 2 | 2 | 2 | 1 | 15 | 0 | 0 | 0 | 7 | 1 | RP, L |
| 1980-08-06 | TOR | @ CLE | L, 5-2 | 6.1 | 8 | 3 | 2 | 3 | 4 | 27 | 0 | 0 | 0 | 7 | 4 | SP, L |
| 1980-08-10 | TOR | vs. KCR | L, 8-5 | 4.2 | 6 | 5 | 5 | 2 | 2 | 22 | 1 | 0 | 0 | 6 | 6 | SP, L |
| 1980-08-15 | TOR | @ KCR | L, 4-3 | 7.1 | 4 | 4 | 4 | 3 | 5 | 29 | 0 | 0 | 1 | 6 | 9 | SP, L |
| 1980-08-21 | TOR | @ CHW | L, 5-3 | 4.2 | 6 | 5 | 5 | 3 | 1 | 22 | 1 | 1 | 0 | 7 | 4 | SP, L |
| 1980-08-26 | TOR | vs. TEX | L, 8-0 | 3.1 | 6 | 6 | 6 | 2 | 1 | 18 | 2 | 0 | 0 | 7 | 2 | SP, L |
| 1980-08-28 | TOR | vs. MIN | L, 7-5 | 1.0 | 1 | 2 | 1 | 1 | 0 | 6 | 0 | 0 | 0 | 1 | 0 | RP, L |
| 1980-09-01 | TOR | @ TEX | L, 9-1 | 0.1 | 2 | 3 | 3 | 2 | 0 | 5 | 1 | 0 | 0 | 1 | 0 | RP |
| 1980-10-03 | PIT | vs. CHC | W, 3-1 | 6.2 | 3 | 1 | 1 | 2 | 4 | 23 | 0 | 0 | 0 | 7 | 7 | SP, W |
| Total Games: 30 | ||||||||||||||||