| Level | W-L-Sv |
G |
GS |
IP |
H |
HR | BB |
K |
BB/9 | K/9 | WHIP | OAVG | ERA |
| 2003 R (Hou) | 1-1-0 |
8 |
3 |
21.2 |
19 |
0 | 7 |
18 |
2.91 | 7.48 | 1.20 | .226 | 2.49 |
| 2004 R (Hou) | 4-3-0 |
13 |
13 |
69.0 |
70 |
3 | 22 |
65 |
2.87 | 8.48 | 1.33 | .262 | 3.78 |
| 2005 A+ (Hou) | 1-0-0 |
1 |
0 |
6.0 |
4 |
1 |
1 |
6 |
1.50 |
9.00 |
0.83 |
.167 | 1.50 |
| 2005 A (Hou) | 11-6-0 |
25 |
25 |
134.2 |
108 |
3 |
55 |
142 |
3.68 |
9.49 |
1.21 |
.220 | 2.27 |
| 2006 A+ (Hou) | 11-8-0 |
27 |
27 |
146.2 |
137 |
6 |
67 |
134 |
4.11 |
8.22 |
1.39 |
.252 | 3.62 |
| 2007 AA (Hou) | 2-9-0 |
24 |
16 |
90.0 |
116 |
11 |
44 |
73 |
4.40 |
7.30 |
1.78 |
.312 | 6.20 |
| 2008 NL | 0-2-0 |
3 |
3 |
10.1 |
16 |
3 |
8 |
6 |
6.97 |
5.23 |
2.32 |
.364 |
10.45 |
| 2008 AA | 3-1-0 |
16 |
16 |
79.0 |
69 |
5 |
27 |
71 |
3.08 |
8.09 |
1.22 |
.235 |
3.53 |
| 2008 AA | 2-4-0 |
10 |
10 |
46.1 |
42 |
3 |
21 |
40 |
4.08 |
7.77 |
1.36 |
.240 |
4.86 |