Bob Porterfield had a record of 5-3 with an ERA of 4.50 and 30 strikeouts in 16 appearances in his rookie season in 1948.
| 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 |  | B. Porterfield | 1948 |  NYY | 16 | 5 | 3 | .625 | 12 | 4.50 | 30 | 2 | 1 | 0 | 78.0 | 85 | 39 | 42 | 5 | 34 | 0 | 2 | 349 | 1 | 3.46 | 3.92 | 0.88 | 0.58 | 8.6 | 9.7 | 1.53 | .286 | 4.85 | 107 | 4.03 | 98 | 9.81 | 0.6 |
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 | | B. Porterfield | 10/3/1948 | 1948 | NYY | @ |  BSA | L | 1 | 19.29 | 1 | 0 | 0 | 0 | 2.1 | 6 | 5 | 5 | 0 | 3 | 0 | 0 | 16 | 0 | |
| 2 | | B. Porterfield | 9/29/1948 | 1948 | NYY | @ |  PHA | W | 1 | 2.16 | 3 | 0 | 0 | 0 | 8.1 | 10 | 2 | 2 | 0 | 3 | 0 | 0 | 38 | 0 | |
| 3 | | B. Porterfield | 9/25/1948 | 1948 | NYY | vs | BSA | 0 | 4.50 | 1 | 0 | 0 | 0 | 2.0 | 2 | 1 | 1 | 1 | 1 | 0 | 0 | 9 | 0 | ||
| 4 | | B. Porterfield | 9/23/1948 | 1948 | NYY | @ |  CWS | 0 | 0.00 | 1 | 0 | 0 | 0 | 4.0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 13 | 0 | ||
| 5 | | B. Porterfield | 9/19/1948 | 1948 | NYY | @ |  SLA | 1 | 14.73 | 3 | 0 | 0 | 0 | 3.2 | 9 | 6 | 6 | 1 | 0 | 0 | 0 | 20 | 0 | ||
| 6 | | B. Porterfield | 9/14/1948 | 1948 | NYY | @ |  CLE | 0 | 3.86 | 1 | 0 | 0 | 0 | 2.1 | 3 | 1 | 1 | 0 | 0 | 0 | 0 | 9 | 0 | ||
| 7 | | B. Porterfield | 9/12/1948 | 1948 | NYY | @ |  WSH | 1 | 27.00 | 0 | 0 | 0 | 0 | 1.0 | 3 | 3 | 3 | 0 | 1 | 0 | 0 | 7 | 0 | ||
| 8 | | B. Porterfield | 9/9/1948 | 1948 | NYY | @ | BSA | L | 1 | 23.14 | 0 | 0 | 0 | 0 | 2.1 | 4 | 6 | 6 | 0 | 4 | 0 | 0 | 14 | 0 | |
| 9 | | B. Porterfield | 9/4/1948 | 1948 | NYY | vs | WSH | 1 | 15.00 | 0 | 0 | 0 | 0 | 3.0 | 5 | 5 | 5 | 1 | 4 | 0 | 0 | 18 | 0 | ||
| 10 | | B. Porterfield | 9/1/1948 | 1948 | NYY | vs | SLA | W | 0 | 0.00 | 1 | 0 | 0 | 0 | 2.2 | 2 | 0 | 0 | 0 | 1 | 0 | 1 | 10 | 0 | |
| 11 | | B. Porterfield | 8/29/1948 | 1948 | NYY | vs |  DET | 1 | 4.91 | 3 | 0 | 0 | 0 | 7.1 | 11 | 4 | 5 | 0 | 2 | 0 | 0 | 33 | 0 | ||
| 12 | | B. Porterfield | 8/25/1948 | 1948 | NYY | vs | CWS | W | 1 | 0.00 | 5 | 0 | 0 | 0 | 7.0 | 6 | 0 | 0 | 0 | 4 | 0 | 0 | 31 | 1 | |
| 13 | | B. Porterfield | 8/21/1948 | 1948 | NYY | @ | PHA | W | 1 | 0.00 | 1 | 1 | 1 | 0 | 9.0 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 31 | 0 | |
| 14 | | B. Porterfield | 8/17/1948 | 1948 | NYY | @ | WSH | W | 1 | 1.00 | 2 | 1 | 0 | 0 | 9.0 | 6 | 1 | 1 | 1 | 2 | 0 | 0 | 37 | 0 | |
| 15 | | B. Porterfield | 8/13/1948 | 1948 | NYY | vs | PHA | 1 | 3.68 | 5 | 0 | 0 | 0 | 7.1 | 9 | 3 | 5 | 0 | 5 | 0 | 0 | 36 | 0 | ||
| 16 | | B. Porterfield | 8/8/1948 | 1948 | NYY | @ | CLE | L | 1 | 2.70 | 3 | 0 | 0 | 0 | 6.2 | 4 | 2 | 2 | 1 | 3 | 0 | 0 | 27 | 0 | |
| Total | 12 | 4.50 | 30 | 2 | 1 | 0 | 78.0 | 85 | 39 | 42 | 5 | 34 | 0 | 2 | 349 | 1 |
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