Justin Masterson
| Date | Team | Opponent | Result | IP | H | R | ER | BB | SO | PA | 2B | 3B | HR | GO | FO | MISC |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2012-04-05 | CLE | vs. TOR | L, 7-4 | 8.0 | 2 | 1 | 1 | 1 | 10 | 27 | 1 | 0 | 1 | 10 | 4 | SP |
| 2012-04-11 | CLE | vs. CHW | L, 10-6 | 5.0 | 8 | 5 | 3 | 1 | 2 | 25 | 1 | 0 | 0 | 5 | 8 | SP, L |
| 2012-04-17 | CLE | @ SEA | W, 9-8 | 3.2 | 7 | 8 | 8 | 4 | 1 | 22 | 0 | 0 | 1 | 6 | 3 | SP |
| 2012-04-22 | CLE | @ OAK | L, 5-1 | 5.0 | 6 | 4 | 4 | 6 | 2 | 27 | 1 | 0 | 1 | 5 | 7 | SP, L |
| 2012-04-27 | CLE | vs. LAA | W, 3-2 | 8.1 | 4 | 2 | 2 | 5 | 5 | 33 | 0 | 0 | 1 | 16 | 3 | SP |
| 2012-05-03 | CLE | @ CHW | W, 7-5 | 6.1 | 8 | 3 | 3 | 3 | 6 | 29 | 1 | 0 | 0 | 7 | 4 | SP, W |
| 2012-05-08 | CLE | vs. CHW | L, 5-3 | 6.0 | 6 | 2 | 2 | 5 | 3 | 27 | 1 | 0 | 0 | 9 | 4 | SP |
| 2012-05-13 | CLE | @ BOS | L, 12-1 | 6.0 | 7 | 6 | 6 | 1 | 4 | 28 | 2 | 0 | 1 | 8 | 4 | SP, L |
| 2012-05-18 | CLE | vs. MIA | L, 3-2 | 7.0 | 6 | 2 | 2 | 3 | 5 | 26 | 1 | 0 | 0 | 10 | 2 | SP |
| 2012-05-24 | CLE | vs. DET | W, 2-1 | 7.0 | 5 | 1 | 1 | 5 | 4 | 31 | 2 | 0 | 0 | 9 | 6 | SP, W |
| 2012-05-29 | CLE | vs. KCR | L, 8-2 | 6.0 | 9 | 8 | 7 | 0 | 8 | 28 | 0 | 0 | 1 | 7 | 1 | SP, L |
| 2012-06-03 | CLE | vs. MIN | L, 6-3 | 6.0 | 7 | 3 | 3 | 3 | 3 | 28 | 2 | 0 | 0 | 9 | 5 | SP, L |
| 2012-06-09 | CLE | @ STL | L, 2-0 | 7.0 | 5 | 1 | 1 | 0 | 6 | 25 | 1 | 0 | 1 | 8 | 6 | SP, L |
| 2012-06-15 | CLE | vs. PIT | W, 2-0 | 7.0 | 4 | 0 | 0 | 3 | 9 | 28 | 1 | 0 | 0 | 4 | 7 | SP, W |
| 2012-06-20 | CLE | vs. CIN | W, 8-1 | 9.0 | 3 | 1 | 0 | 0 | 9 | 30 | 1 | 0 | 0 | 12 | 4 | SP, W, CG |
| 2012-06-26 | CLE | @ NYY | L, 6-4 | 6.0 | 7 | 4 | 4 | 3 | 2 | 28 | 0 | 0 | 0 | 7 | 9 | SP, L |
| 2012-07-01 | CLE | @ BAL | W, 6-2 | 7.0 | 5 | 2 | 1 | 0 | 7 | 26 | 1 | 0 | 0 | 9 | 4 | SP, W |
| 2012-07-06 | CLE | vs. TBR | L, 10-3 | 4.1 | 9 | 8 | 8 | 4 | 7 | 26 | 1 | 0 | 2 | 3 | 3 | SP, L |
| 2012-07-13 | CLE | @ TOR | W, 1-0 | 7.0 | 5 | 0 | 0 | 1 | 5 | 25 | 0 | 0 | 0 | 11 | 3 | SP, W |
| 2012-07-18 | CLE | @ TBR | W, 10-6 | 4.1 | 7 | 4 | 4 | 7 | 1 | 26 | 0 | 0 | 0 | 7 | 4 | SP |
| 2012-07-23 | CLE | vs. BAL | W, 3-1 | 7.1 | 7 | 1 | 1 | 1 | 6 | 28 | 2 | 0 | 0 | 5 | 7 | SP, W |
| 2012-07-28 | CLE | @ MIN | L, 12-5 | 5.2 | 7 | 10 | 8 | 2 | 2 | 28 | 2 | 1 | 1 | 14 | 1 | SP, L |
| 2012-08-03 | CLE | @ DET | L, 10-2 | 4.0 | 10 | 7 | 7 | 4 | 4 | 25 | 3 | 0 | 1 | 4 | 3 | SP, L |
| 2012-08-08 | CLE | vs. MIN | W, 6-2 | 7.0 | 3 | 2 | 2 | 4 | 7 | 28 | 1 | 0 | 1 | 9 | 5 | SP, W |
| 2012-08-13 | CLE | @ LAA | W, 6-2 | 6.0 | 6 | 0 | 0 | 3 | 4 | 24 | 0 | 0 | 0 | 8 | 3 | SP, W |
| 2012-08-19 | CLE | @ OAK | L, 7-0 | 5.2 | 9 | 7 | 7 | 1 | 5 | 27 | 2 | 0 | 2 | 7 | 3 | SP, L |
| 2012-08-25 | CLE | vs. NYY | W, 3-1 | 6.2 | 7 | 1 | 1 | 2 | 6 | 29 | 1 | 0 | 0 | 5 | 8 | SP, W |
| 2012-08-30 | CLE | vs. OAK | L, 12-7 | 4.0 | 8 | 8 | 8 | 2 | 1 | 22 | 2 | 0 | 3 | 3 | 8 | SP, L |
| 2012-09-04 | CLE | @ DET | W, 3-2 | 6.0 | 4 | 2 | 2 | 1 | 4 | 22 | 1 | 0 | 1 | 9 | 4 | SP, W |
| 2012-09-10 | CLE | @ MIN | L, 7-2 | 6.2 | 7 | 6 | 6 | 2 | 3 | 29 | 1 | 1 | 0 | 13 | 3 | SP, L |
| 2012-09-15 | CLE | vs. DET | L, 5-3 | 4.2 | 6 | 4 | 2 | 4 | 8 | 26 | 1 | 0 | 0 | 4 | 2 | SP, L |
| 2012-09-21 | CLE | @ KCR | L, 6-3 | 6.0 | 7 | 4 | 4 | 2 | 3 | 26 | 0 | 0 | 0 | 8 | 5 | SP, L |
| 2012-09-26 | CLE | @ CHW | W, 6-4 | 4.2 | 7 | 4 | 4 | 4 | 2 | 25 | 2 | 0 | 0 | 5 | 6 | SP |
| 2012-10-02 | CLE | vs. CHW | W, 4-3 | 6.0 | 4 | 1 | 1 | 1 | 5 | 22 | 1 | 0 | 0 | 9 | 3 | SP |
| Total Games: 34 | ||||||||||||||||