SO/BB
Clayton Mortensen · Season-by-season history
SO/BB over time
- Athletics · MLB
- Boston Red Sox · MLB
Hover over a bar for its value. Only numeric values with a recorded season are charted; missing seasons are not treated as zero.
| Season | Team | League | SO/BB |
|---|---|---|---|
| 2013 |  Boston Red Sox |
MLB | 1.31 |
| 2012 | Boston Red Sox |
MLB | 2.16 |
| 2010 |  Athletics |
MLB | 3.50 |
| 2009 | Athletics |
MLB | 0.92 |