Justin Masterson
| Date | Team | Opponent | Result | IP | H | R | ER | BB | SO | PA | 2B | 3B | HR | GO | FO | MISC |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2009-04-07 | BOS | vs. TBR | W, 5-3 | 0.2 | 1 | 0 | 0 | 0 | 1 | 3 | 0 | 0 | 0 | 0 | 1 | RP |
| 2009-04-09 | BOS | vs. TBR | L, 4-3 | 0.1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | RP |
| 2009-04-10 | BOS | @ LAA | L, 6-3 | 1.0 | 4 | 3 | 3 | 1 | 0 | 8 | 1 | 0 | 0 | 1 | 2 | RP |
| 2009-04-14 | BOS | @ OAK | L, 6-5 | 4.0 | 2 | 0 | 0 | 0 | 6 | 14 | 0 | 0 | 0 | 5 | 1 | RP |
| 2009-04-20 | BOS | vs. BAL | W, 12-1 | 5.1 | 4 | 1 | 1 | 2 | 3 | 21 | 0 | 0 | 0 | 7 | 4 | SP, W |
| 2009-04-26 | BOS | vs. NYY | W, 4-1 | 5.1 | 6 | 1 | 1 | 1 | 4 | 24 | 0 | 0 | 0 | 5 | 6 | SP, W |
| 2009-05-01 | BOS | @ TBR | L, 6-2 | 6.0 | 6 | 6 | 6 | 3 | 6 | 27 | 0 | 0 | 2 | 5 | 4 | SP, L |
| 2009-05-06 | BOS | vs. CLE | L, 9-2 | 6.1 | 8 | 6 | 6 | 3 | 6 | 30 | 1 | 1 | 0 | 10 | 2 | SP, L |
| 2009-05-12 | BOS | @ LAA | W, 4-3 | 6.0 | 5 | 2 | 2 | 4 | 3 | 27 | 0 | 0 | 0 | 6 | 7 | SP |
| 2009-05-17 | BOS | @ SEA | L, 3-2 | 6.1 | 9 | 2 | 2 | 0 | 6 | 27 | 1 | 1 | 1 | 4 | 5 | SP |
| 2009-05-22 | BOS | vs. NYM | L, 5-3 | 3.0 | 3 | 1 | 1 | 1 | 3 | 12 | 0 | 0 | 0 | 2 | 2 | RP |
| 2009-05-27 | BOS | @ MIN | L, 4-2 | 2.1 | 2 | 0 | 0 | 1 | 0 | 11 | 1 | 0 | 0 | 4 | 1 | RP |
| 2009-05-31 | BOS | @ TOR | W, 8-2 | 2.0 | 2 | 1 | 1 | 1 | 1 | 9 | 0 | 0 | 1 | 3 | 2 | RP |
| 2009-06-04 | BOS | @ DET | W, 6-3 | 0.2 | 0 | 0 | 0 | 0 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | RP |
| 2009-06-07 | BOS | vs. TEX | L, 6-3 | 0.2 | 1 | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 0 | 1 | 0 | RP |
| 2009-06-12 | BOS | @ PHI | W, 5-2 | 2.1 | 2 | 0 | 0 | 1 | 3 | 11 | 1 | 0 | 0 | 2 | 1 | RP |
| 2009-06-14 | BOS | @ PHI | L, 11-6 | 1.0 | 1 | 0 | 0 | 0 | 2 | 4 | 0 | 0 | 0 | 0 | 1 | RP |
| 2009-06-17 | BOS | vs. FLA | W, 6-1 | 1.0 | 0 | 0 | 0 | 0 | 2 | 3 | 0 | 0 | 0 | 0 | 1 | RP |
| 2009-06-19 | BOS | vs. ATL | L, 8-2 | 2.1 | 1 | 1 | 0 | 1 | 0 | 9 | 0 | 0 | 0 | 4 | 2 | RP |
| 2009-06-24 | BOS | @ WAS | W, 6-4 | 1.2 | 2 | 1 | 1 | 1 | 2 | 8 | 1 | 1 | 0 | 2 | 1 | RP |
| 2009-06-27 | BOS | @ ATL | W, 1-0 | 0.2 | 0 | 0 | 0 | 1 | 0 | 3 | 0 | 0 | 0 | 1 | 1 | RP |
| 2009-06-30 | BOS | @ BAL | L, 11-10 | 2.0 | 5 | 5 | 5 | 0 | 4 | 11 | 1 | 0 | 1 | 2 | 0 | RP |
| 2009-07-04 | BOS | vs. SEA | L, 3-2 | 1.0 | 0 | 0 | 0 | 1 | 0 | 3 | 0 | 0 | 0 | 1 | 1 | RP |
| 2009-07-05 | BOS | vs. SEA | W, 8-4 | 1.1 | 0 | 0 | 0 | 0 | 3 | 4 | 0 | 0 | 0 | 1 | 0 | RP, W |
| 2009-07-07 | BOS | vs. OAK | W, 5-2 | 1.0 | 0 | 0 | 0 | 0 | 1 | 3 | 0 | 0 | 0 | 1 | 1 | RP |
| 2009-07-09 | BOS | vs. KCR | L, 8-6 | 0.1 | 2 | 2 | 2 | 0 | 0 | 3 | 0 | 0 | 1 | 1 | 0 | RP, L |
| 2009-07-11 | BOS | vs. KCR | W, 15-9 | 0.1 | 4 | 5 | 5 | 1 | 1 | 6 | 0 | 0 | 1 | 0 | 0 | RP |
| 2009-07-18 | BOS | @ TOR | L, 6-2 | 2.0 | 0 | 0 | 0 | 0 | 1 | 6 | 0 | 0 | 0 | 3 | 2 | RP |
| 2009-07-20 | BOS | @ TEX | L, 6-3 | 1.0 | 1 | 0 | 0 | 0 | 2 | 4 | 0 | 0 | 0 | 0 | 1 | RP |
| 2009-07-26 | BOS | vs. BAL | L, 6-2 | 2.0 | 0 | 0 | 0 | 1 | 2 | 7 | 0 | 0 | 0 | 2 | 2 | RP |
| 2009-07-29 | BOS | vs. OAK | L, 8-6 | 2.0 | 1 | 1 | 0 | 1 | 3 | 9 | 1 | 0 | 0 | 1 | 2 | RP |
| 2009-08-01 | CLE | vs. DET | L, 4-3 | 3.0 | 2 | 0 | 0 | 1 | 4 | 12 | 0 | 0 | 0 | 2 | 3 | RP |
| 2009-08-08 | CLE | @ CHW | L, 8-5 | 4.0 | 4 | 1 | 1 | 1 | 4 | 18 | 1 | 0 | 0 | 7 | 1 | SP |
| 2009-08-14 | CLE | @ MIN | L, 11-0 | 3.1 | 6 | 7 | 6 | 5 | 3 | 20 | 0 | 0 | 0 | 2 | 3 | SP, L |
| 2009-08-20 | CLE | vs. LAA | W, 11-3 | 6.1 | 3 | 1 | 0 | 4 | 3 | 27 | 0 | 0 | 0 | 10 | 5 | SP, W |
| 2009-08-25 | CLE | @ KCR | L, 6-2 | 6.0 | 7 | 4 | 4 | 2 | 4 | 25 | 0 | 0 | 1 | 10 | 2 | SP, L |
| 2009-08-30 | CLE | @ BAL | L, 5-2 | 5.2 | 8 | 5 | 4 | 4 | 6 | 28 | 1 | 0 | 1 | 5 | 5 | SP, L |
| 2009-09-05 | CLE | vs. MIN | L, 4-1 | 6.0 | 5 | 2 | 1 | 5 | 2 | 25 | 1 | 0 | 0 | 6 | 6 | SP, L |
| 2009-09-11 | CLE | vs. KCR | L, 2-1 | 6.0 | 4 | 1 | 1 | 4 | 4 | 24 | 1 | 0 | 0 | 7 | 4 | SP |
| 2009-09-17 | CLE | @ OAK | L, 5-2 | 4.0 | 6 | 5 | 5 | 4 | 6 | 22 | 2 | 0 | 1 | 3 | 3 | SP, L |
| 2009-09-23 | CLE | vs. DET | L, 11-3 | 4.0 | 7 | 8 | 6 | 3 | 4 | 23 | 1 | 0 | 2 | 4 | 4 | SP, L |
| 2009-09-30 | CLE | vs. CHW | L, 1-0 | 9.0 | 4 | 1 | 1 | 2 | 12 | 32 | 2 | 0 | 0 | 8 | 6 | SP, L, CG |
| Total Games: 42 | ||||||||||||||||