SO9
Zack Greinke · Season-by-season history
SO9 over time
- Kansas City Royals · MLB
- Los Angeles Angels · MLB
- Houston Astros · MLB
| Season | Team | League | SO9 |
|---|---|---|---|
| 2023 |  Kansas City Royals |
MLB | 6.1 |
| 2022 | Kansas City Royals |
MLB | 4.8 |
| 2021 |  Houston Astros |
MLB | 6.3 |
| 2020 | Houston Astros |
MLB | 9.0 |
| 2019 | Houston Astros |
MLB | 7.5 |
| 2012 |  Los Angeles Angels |
MLB | 7.9 |
| 2010 | Kansas City Royals |
MLB | 7.4 |
| 2009 | Kansas City Royals |
MLB | 9.5 |
| 2008 | Kansas City Royals |
MLB | 8.1 |
| 2007 | Kansas City Royals |
MLB | 7.8 |
| 2006 | Kansas City Royals |
MLB | 7.1 |
| 2005 | Kansas City Royals |
MLB | 5.6 |
| 2004 | Kansas City Royals |
MLB | 6.2 |