J.P. Howell had a record of 3-5 with an ERA of 6.19 and 54 strikeouts in 15 appearances in his rookie season in 2005.
| 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 |  | J.P. Howell | 2005 |  KCR | 15 | 3 | 5 | .375 | 15 | 6.19 | 54 | 0 | 0 | 0 | 72.2 | 73 | 50 | 55 | 9 | 39 | 6 | 0 | 0 | 328 | 7 | 6.69 | 4.83 | 1.38 | 1.11 | 16.5 | 11.9 | 1.54 | .291 | 6.81 | 138 | 4.99 | 116 | 9.04 | -5.4 |
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 | | J.P. Howell | 10/1/2005 | 2005 | KCR | @ |  TOR | 1 | 0.00 | 5 | 0 | 0 | 0 | 6.1 | 4 | 0 | 4 | 0 | 2 | 0 | 0 | 0 | 26 | 0 | |
| 2 | | J.P. Howell | 9/26/2005 | 2005 | KCR | @ |  MIN | W | 1 | 0.00 | 7 | 0 | 0 | 0 | 5.0 | 0 | 0 | 0 | 0 | 3 | 1 | 0 | 0 | 19 | 0 |
| 3 | | J.P. Howell | 9/20/2005 | 2005 | KCR | vs |  DET | 1 | 9.00 | 2 | 0 | 0 | 0 | 4.0 | 6 | 4 | 4 | 0 | 3 | 1 | 0 | 0 | 21 | 1 | |
| 4 | | J.P. Howell | 9/14/2005 | 2005 | KCR | vs |  CWS | 1 | 18.00 | 1 | 0 | 0 | 0 | 3.0 | 7 | 6 | 6 | 2 | 1 | 0 | 0 | 0 | 17 | 0 | |
| 5 | | J.P. Howell | 9/8/2005 | 2005 | KCR | @ | CWS | W | 1 | 3.00 | 5 | 0 | 0 | 0 | 6.0 | 2 | 2 | 2 | 0 | 5 | 0 | 0 | 0 | 25 | 0 |
| 6 | | J.P. Howell | 9/1/2005 | 2005 | KCR | vs |  TEX | L | 1 | 6.00 | 7 | 0 | 0 | 0 | 6.0 | 5 | 4 | 4 | 1 | 2 | 0 | 0 | 0 | 25 | 2 |
| 7 | | J.P. Howell | 8/27/2005 | 2005 | KCR | @ |  NYY | 1 | 4.50 | 3 | 0 | 0 | 0 | 6.0 | 4 | 3 | 3 | 0 | 4 | 0 | 0 | 0 | 24 | 1 | |
| 8 | | J.P. Howell | 7/21/2005 | 2005 | KCR | @ |  CLE | L | 1 | 6.00 | 6 | 0 | 0 | 0 | 6.0 | 5 | 4 | 4 | 2 | 0 | 0 | 0 | 0 | 23 | 0 |
| 9 | | J.P. Howell | 7/16/2005 | 2005 | KCR | @ | DET | 1 | 4.15 | 2 | 0 | 0 | 0 | 4.1 | 6 | 2 | 3 | 0 | 2 | 0 | 0 | 0 | 23 | 0 | |
| 10 | | J.P. Howell | 7/9/2005 | 2005 | KCR | vs | MIN | 1 | 21.60 | 0 | 0 | 0 | 0 | 1.2 | 4 | 4 | 4 | 1 | 3 | 1 | 0 | 0 | 11 | 2 | |
| 11 | | J.P. Howell | 7/4/2005 | 2005 | KCR | vs |  SEA | L | 1 | 10.80 | 2 | 0 | 0 | 0 | 5.0 | 8 | 6 | 6 | 1 | 1 | 0 | 0 | 0 | 23 | 0 |
| 12 | | J.P. Howell | 6/28/2005 | 2005 | KCR | @ | MIN | 1 | 13.50 | 1 | 0 | 0 | 0 | 3.1 | 6 | 5 | 5 | 0 | 4 | 0 | 0 | 0 | 18 | 0 | |
| 13 | | J.P. Howell | 6/22/2005 | 2005 | KCR | @ | CWS | L | 1 | 9.00 | 2 | 0 | 0 | 0 | 5.0 | 7 | 5 | 5 | 1 | 4 | 1 | 0 | 0 | 25 | 0 |
| 14 | | J.P. Howell | 6/17/2005 | 2005 | KCR | vs |  HOU | L | 1 | 6.00 | 3 | 0 | 0 | 0 | 6.0 | 5 | 4 | 4 | 1 | 3 | 1 | 0 | 0 | 26 | 0 |
| 15 | | J.P. Howell | 6/11/2005 | 2005 | KCR | @ |  ARI | W | 1 | 1.80 | 8 | 0 | 0 | 0 | 5.0 | 4 | 1 | 1 | 0 | 2 | 1 | 0 | 0 | 22 | 1 |
| Total | 15 | 6.19 | 54 | 0 | 0 | 0 | 72.2 | 73 | 50 | 55 | 9 | 39 | 6 | 0 | 0 | 328 | 7 |
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