P · 7 seasons · 2009 – 2016 · B/T: R/R
Across 7 seasons from 2009 to 2016, Sean O'Sullivan ranks 11431st of 11,481 pitchers in career roto value (1.9 wins and 22.6 strikeouts per season). 2009 was the high-water mark, worth -1.7, 390th that season and 28680th of 51,303 player-seasons on record.
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 2009 | LAA | 12 | -2.04 | #539 | #55,525 |
| 2010 | KC | 19 | -2.16 | #909 | #72,909 |
| 2011 | KC | 12 | -2.11 | #611 | #65,863 |
| 2013 | SD | 7 | -2.17 | #1,082 | #74,153 |
| 2014 | PHI | 3 | -2.17 | #1,102 | #73,925 |
| 2015 | PHI | 13 | -2.41 | #1,257 | #95,629 |
| 2016★ | BOS | 5 | -2.02 | #590 | #54,602 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 2009★ | LAA | 12 | -1.74 | #390 | #28,680 |
| 2010 | KC | 19 | -2.22 | #444 | #34,940 |
| 2011 | KC | 12 | -5.07 | #660 | #50,999 |
| 2013 | SD | 7 | -2.72 | #576 | #42,286 |
| 2014 | PHI | 3 | -2.38 | #546 | #37,314 |
| 2015 | PHI | 13 | -4.38 | #719 | #50,444 |
| 2016 | BOS | 5 | -2.44 | #595 | #38,239 |
★ Best season by Z