Sean O'Sullivan had a 4-2 record with an ERA of 5.92 and 29 strikeouts in 12 appearances in his rookie season in 2009.
| NAME | SEASON | TM | G | W | L | W% | GS | ERA | SO | CG | SHO | SV | IP | H | ER | R | HR | BB | HBP | GF | IBB | TBF | WP | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | WHIP | BABIP | RA | ERA- | FIP | FIP- | H/9 | PRAA | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | S. O'Sullivan | 2009 |  LAA | 12 | 4 | 2 | .667 | 10 | 5.92 | 29 | 0 | 0 | 0 | 51.2 | 60 | 34 | 34 | 12 | 16 | 1 | 1 | 1 | 227 | 1 | 5.05 | 2.79 | 1.81 | 2.09 | 12.8 | 7.0 | 1.47 | .284 | 5.92 | 134 | 5.97 | 137 | 10.45 | -9.3 |
Games
| NAME | DATE | SEASON | TM | OPP | DEC | GS | ERA | SO | CG | SHO | SV | IP | H | ER | R | HR | BB | HBP | GF | IBB | TBF | WP | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | | S. O'Sullivan | 10/2/2009 | 2009 | LAA | @ |  OAK | 0 | 0.00 | 0 | 0 | 0 | 0 | 2.0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | |
| 2 | | S. O'Sullivan | 9/29/2009 | 2009 | LAA | vs |  TEX | W | 1 | 3.60 | 3 | 0 | 0 | 0 | 5.0 | 3 | 2 | 2 | 1 | 0 | 0 | 0 | 0 | 18 | 0 |
| 3 | | S. O'Sullivan | 9/26/2009 | 2009 | LAA | vs | OAK | 0 | 0.00 | 0 | 0 | 0 | 0 | 1.0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 5 | 0 | |
| 4 | | S. O'Sullivan | 8/21/2009 | 2009 | LAA | @ |  TOR | L | 1 | 36.00 | 1 | 0 | 0 | 0 | 1.0 | 4 | 4 | 4 | 1 | 3 | 0 | 0 | 0 | 10 | 0 |
| 5 | | S. O'Sullivan | 8/16/2009 | 2009 | LAA | @ |  BAL | 1 | 13.50 | 3 | 0 | 0 | 0 | 4.0 | 7 | 6 | 6 | 3 | 2 | 0 | 0 | 0 | 21 | 0 | |
| 6 | | S. O'Sullivan | 8/10/2009 | 2009 | LAA | vs |  TBR | 1 | 11.57 | 3 | 0 | 0 | 0 | 4.2 | 6 | 6 | 6 | 2 | 2 | 1 | 0 | 0 | 23 | 0 | |
| 7 | | S. O'Sullivan | 8/5/2009 | 2009 | LAA | @ |  CWS | L | 1 | 7.20 | 3 | 0 | 0 | 0 | 5.0 | 6 | 4 | 4 | 1 | 0 | 0 | 0 | 0 | 21 | 0 |
| 8 | | S. O'Sullivan | 7/21/2009 | 2009 | LAA | @ |  KCR | W | 1 | 3.38 | 1 | 0 | 0 | 0 | 5.1 | 6 | 2 | 2 | 0 | 2 | 0 | 0 | 0 | 24 | 0 |
| 9 | | S. O'Sullivan | 7/4/2009 | 2009 | LAA | vs | BAL | 1 | 6.35 | 2 | 0 | 0 | 0 | 5.2 | 9 | 4 | 4 | 0 | 0 | 0 | 0 | 0 | 24 | 0 | |
| 10 | | S. O'Sullivan | 6/29/2009 | 2009 | LAA | @ | TEX | W | 1 | 3.00 | 5 | 0 | 0 | 0 | 6.0 | 6 | 2 | 2 | 2 | 2 | 0 | 0 | 1 | 25 | 0 |
| 11 | | S. O'Sullivan | 6/23/2009 | 2009 | LAA | vs |  COL | 1 | 5.40 | 3 | 0 | 0 | 0 | 5.0 | 6 | 3 | 3 | 2 | 3 | 0 | 0 | 0 | 23 | 0 | |
| 12 | | S. O'Sullivan | 6/16/2009 | 2009 | LAA | @ |  SFG | W | 1 | 1.29 | 5 | 0 | 0 | 0 | 7.0 | 5 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 27 | 1 |
| Total | 10 | 5.92 | 29 | 0 | 0 | 0 | 51.2 | 60 | 34 | 34 | 12 | 16 | 1 | 1 | 1 | 227 | 1 |
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