| Level | W-L-Sv |
G |
GS |
IP |
H |
HR | BB |
K |
BB/9 | K/9 | WHIP | OAVG | ERA |
| 2001 R (Minn) | 2-2-0 |
12 |
0 |
17.1 |
15 |
2 | 8 |
17 |
4.15 | 8.83 | 1.33 | .238 | 3.63 |
| 2002 A (Minn) | 0-0-0 |
2 |
0 |
3.0 |
2 |
0 | 0 |
3 |
0.00 | 9.00 | 0.67 | .200 | 0.00 |
| 2002 R+ (Minn) | 2-1-0 |
10 |
0 |
20.2 |
12 |
0 | 13 |
23 |
5.66 | 10.02 | 1.21 | .167 | 2.18 |
| 2002 R (Minn) | 1-1-2 |
14 |
0 |
20.1 |
17 |
0 | 11 |
21 |
4.87 | 9.30 | 1.38 | .227 | 3.54 |
| 2003 A (Minn) | 7-4-0 |
26 |
21 |
136.2 |
135 |
7 | 57 |
132 |
3.75 | 8.69 | 1.40 | .260 | 3.95 |
| 2004 A+ (Minn) | 0-1-0 |
3 |
0 |
6.2 |
5 |
0 | 9 |
5 |
12.15 | 6.75 | 2.10 | .217 | 2.70 |
| 2004 R (Minn) | 0-1-0 |
6 |
2 |
10.0 |
9 |
0 | 6 |
9 |
5.40 | 8.10 | 1.50 | .250 | 0.90 |
| 2005 A+ (Minn) | 0-0-0 |
7 |
0 |
10.1 |
9 |
1 |
9 |
12 |
7.84 |
10.45 |
1.74 |
.380 |
4.36 |
| 2005 A (Minn) | 4-7-4 |
35 |
10 |
105.2 |
89 |
4 |
46 |
82 |
3.92 |
6.98 |
1.28 |
.317 |
3.15 |
| 2006 A+ (Minn) | 6-6-0 |
33 |
13 |
107.0 |
104 |
9 |
42 |
80 |
3.53 |
6.73 |
1.36 |
.335 |
3.80 |
| 2007 AA (Minn) | 3-2-0 |
16 |
11 |
53.2 |
57 |
2 |
27 |
46 |
4.53 |
7.72 |
1.57 |
.355 |
3.73 |
| 2007 A+ (Minn) | 3-2-0 |
17 |
4 |
39.0 |
45 |
1 |
13 |
36 |
3.00 |
8.31 |
1.49 |
.347 |
3.77 |
| 2008 AA | 4-11-0 |
22 |
21 |
111.1 |
119 |
12 |
48 |
65 |
3.88 |
5.25 |
1.50 |
.278 |
4.53 |