| On Grass/Turf - Grass | ||||||||||||||
| Date | Opp | INN | GS | QS | CG | W | L | S | BS | K | BBI | HA | ERA | WHIP |
| 4/21/13 | vsDET | 6.0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 4 | 4 | 5 | 4.500 | 1.5000 |
| 4/26/13 | atSEA | 5.1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 9 | 2 | 7 | 5.060 | 1.7000 |
| 5/1/13 | atOAK | 6.1 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 5 | 5 | 6 | 2.840 | 1.7500 |
| 5/7/13 | atHOU | 6.1 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 12 | 2 | 7 | 2.840 | 1.4300 |
| 5/12/13 | atCHW | 6.2 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 3 | 4 | 6 | 4.050 | 1.4900 |
| 5/17/13 | vsCHW | 7.0 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 3 | 2 | 6 | 2.570 | 1.1400 |
| TOTAL | 37.2 | 6 | 5 | 0 | 2 | 3 | 0 | 0 | 36 | 19 | 37 | 3.580 | 1.4900 | |