| On Grass/Turf - Grass | ||||||||||||||
| Date | Opp | INN | GS | QS | CG | W | L | S | BS | K | BBI | HA | ERA | WHIP |
| 4/4/13 | vsBOS | 8.0 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 3 | 1 | 8 | 1.130 | 1.1200 |
| 4/9/13 | atCLE | 7.0 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 4 | 3 | 5 | 1.290 | 1.1400 |
| 4/29/13 | vsHOU | 4.1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 3 | 1 | 10 | 14.540 | 2.5600 |
| 5/5/13 | vsOAK | 5.0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 4 | 4 | 5.400 | 1.6000 |
| 5/11/13 | atKC | 7.0 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 7 | 1 | 5 | 2.570 | 0.8600 |
| 5/16/13 | vsSEA | 4.2 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 5 | 3 | 4 | 3.860 | 1.4900 |
| TOTAL | 36.0 | 6 | 3 | 0 | 3 | 2 | 0 | 0 | 24 | 13 | 36 | 4.000 | 1.3600 | |