| 2012-05-10 Contract purchased from Rochester (AAA) |
| 2012-05-12 | MIN | 27.061 | W 1-2 | vs TOR | 1 | 21 | L | ST | 6.0 | 6 | 2 | 2 | 1 | 0 | 5 | 93 | 32 | 61 | 66% | 0-1 | 3.00 | 1.00 |
| 2012-05-17 | MIN | 27.066 | W 4-3 | @ DET | 2 | 22 | W | ST | 6.1 | 4 | 3 | 3 | 3 | 3 | 2 | 87 | 37 | 50 | 57% | 1-1 | 3.75 | 1.08 |
| 2012-05-22 | MIN | 27.071 | W 9-2 | @ CHA | 3 | 23 | W | ST | 9.0 | 5 | 2 | 2 | 1 | 2 | 8 | 110 | 41 | 69 | 63% | 2-1 | 3.00 | 0.95 |
| 2012-05-27 | MIN | 27.076 | W 3-4 | vs DET | 4 | 24 | - | ST | 6.0 | 7 | 2 | 2 | 0 | 5 | 4 | 92 | 43 | 49 | 53% | 2-1 | 3.00 | 1.19 |
| 2012-06-02 | MIN | 27.082 | W 7-4 | @ CLE | 5 | 25 | - | ST | 4.1 | 8 | 4 | 4 | 0 | 3 | 2 | 101 | 38 | 63 | 62% | 2-1 | 3.66 | 1.34 |
| 2012-06-08 | MIN | 27.088 | L 8-7 | vs CHN | 6 | 26 | - | ST | 5.0 | 8 | 5 | 5 | 2 | 1 | 2 | 84 | 31 | 53 | 63% | 2-1 | 4.38 | 1.41 |
| 2012-06-13 | MIN | 27.093 | W 8-9 | vs PHI | 7 | 27 | L | ST | 0.0 | 4 | 4 | 4 | 0 | 0 | 0 | 15 | 5 | 10 | 67% | 2-2 | 5.35 | 1.51 |
| 2012-06-14 DL-15 Right shoulder inflammation |
| 2012-07-02 Assigned to Rochester (AAA) for rehab |
| 2012-07-29 Transferred to 60-day DL |
| 2012-08-05 Assigned to Rochester (AAA) for rehab |
| 2012-09-01 Activated from DL |
| 2012-09-05 | MIN | 27.177 | L 2-6 | @ CHA | 8 | 28 | L | ST | 5.0 | 5 | 6 | 6 | 2 | 3 | 4 | 101 | 43 | 58 | 57% | 2-3 | 6.00 | 1.52 |
| 2012-09-12 | MIN | 27.184 | W 5-10 | vs KCA | 9 | 29 | L | ST | 4.0 | 7 | 6 | 6 | 1 | 2 | 3 | 71 | 27 | 44 | 62% | 2-4 | 6.65 | 1.59 |
| 2012-09-18 | MIN | 27.190 | W 6-5 | @ CLE | 10 | 30 | - | ST | 5.0 | 8 | 4 | 2 | 1 | 1 | 3 | 89 | 37 | 52 | 58% | 2-4 | 6.35 | 1.61 |
| 2012-09-23 | MIN | 27.195 | W 2-1 | @ DET | 11 | 31 | - | ST | 6.0 | 5 | 1 | 1 | 0 | 1 | 4 | 90 | 37 | 53 | 59% | 2-4 | 5.84 | 1.54 |
| 2012-09-29 | MIN | 27.201 | W 4-6 | vs DET | 12 | 32 | L | ST | 5.0 | 4 | 2 | 2 | 1 | 1 | 5 | 92 | 32 | 60 | 65% | 2-5 | 5.66 | 1.50 |