Justin Masterson - Pitcher Log
- Throwing Arm: R
| Date | Opponent | Result | IP | H | R | ER | W | K's | Money | OU |
|---|---|---|---|---|---|---|---|---|---|---|
| Apr 20, 2009 | vs Baltimore | W 12-1 | 5.1 | 4 | 1 | 1 | 2 | 3 | +45 | O (10.5) |
| Apr 26, 2009 | vs NY Yankees | W 4-1 | 5.1 | 6 | 1 | 1 | 1 | 4 | +83 | U (9.5) |
| May 1, 2009 | at Tampa Bay | L 2-6 | 6 | 6 | 6 | 6 | 3 | 6 | -100 | U (9) |
| May 6, 2009 | vs Cleveland | L 2-9 | 6.1 | 8 | 6 | 6 | 3 | 6 | -100 | O (10.5) |
| May 12, 2009 | at LA Angels | W 4-3 | 6 | 5 | 2 | 2 | 4 | 3 | +110 | U (8.5) |
| May 17, 2009 | at Seattle | L 2-3 | 6.1 | 9 | 2 | 2 | 0 | 6 | -100 | U (8.5) |
| Aug 8, 2009 | at Chi White Sox | L 5-8 | 4 | 4 | 1 | 1 | 1 | 4 | -100 | O (9.5) |
| Aug 14, 2009 | at Minnesota | L 0-11 | 3.1 | 6 | 7 | 6 | 5 | 3 | -100 | O (9) |
| Aug 20, 2009 | vs LA Angels | W 11-3 | 6.1 | 3 | 1 | 0 | 4 | 3 | +130 | O (9.5) |
| Aug 25, 2009 | at Kansas City | L 2-6 | 6 | 7 | 4 | 4 | 2 | 4 | -100 | P (8) |
| Aug 30, 2009 | at Baltimore | L 2-5 | 5.2 | 8 | 5 | 4 | 4 | 6 | -100 | U (9.5) |
| Sep 5, 2009 | vs Minnesota | L 1-4 | 6 | 5 | 2 | 1 | 5 | 2 | -100 | U (9) |
| Sep 11, 2009 | vs Kansas City | L 1-2 | 6 | 4 | 1 | 1 | 4 | 4 | -100 | U (7.5) |
| Sep 17, 2009 | at Oakland | L 2-5 | 4 | 6 | 5 | 5 | 4 | 6 | -100 | U (9) |
| Sep 23, 2009 | vs Detroit | L 3-11 | 4 | 7 | 8 | 6 | 3 | 4 | -100 | O (8.5) |
| Sep 30, 2009 | vs Chi White Sox | L 0-1 | 9 | 4 | 1 | 1 | 2 | 12 | -100 | U (8.5) |
