| On Grass/Turf - Grass | ||||||||||||||
| Date | Opp | INN | GS | QS | CG | W | L | S | BS | K | BBI | HA | ERA | WHIP |
| 4/14/13 | atNYY | 6.0 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 2 | 1 | 6 | 4.500 | 1.1700 |
| 4/20/13 | vsLAD | 6.0 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 2 | 4 | 3 | 1.500 | 1.1700 |
| 4/26/13 | atOAK | 8.0 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 5 | 2 | 2 | 0.000 | 0.5000 |
| 5/1/13 | atSEA | 4.0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 6 | 3 | 8 | 11.250 | 2.7500 |
| 5/7/13 | vsKC | 6.1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 9 | 2.840 | 1.4300 |
| 5/12/13 | atMIN | 5.0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 3 | 0 | 5 | 0.000 | 1.0000 |
| TOTAL | 35.1 | 6 | 4 | 0 | 3 | 2 | 0 | 0 | 20 | 10 | 33 | 2.800 | 1.2200 | |