| Roy Mahaffey | |
| Position: | Pitcher |
| Bats: | Right |
| Throws: | Right |
| Birth Date: | 9 February 1904 |
| Birth Place: | Belton, South Carolina, U.S. |
| Death Place: | Anderson, South Carolina, U.S. |
| Debutleague: | MLB |
| Debutdate: | August 31 |
| Debutyear: | 1926 |
| Debutteam: | Pittsburgh Pirates |
| Finalleague: | MLB |
| Finaldate: | July 28 |
| Finalyear: | 1936 |
| Finalteam: | St. Louis Browns |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat1value: | 67–49 |
| Stat2label: | Earned run average |
| Stat2value: | 5.01 |
| Stat3label: | Strikeouts |
| Stat3value: | 365 |
| Teams: |
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Lee Roy Mahaffey (February 9, 1904 – July 23, 1969) was a pitcher in Major League Baseball. He played for the Pittsburgh Pirates, Philadelphia Athletics, and St. Louis Browns.[1] His key pitch was a fast-breaking curveball.[2]
In nine seasons, Mahaffey posted a 67-49 record with a 5.01 earned run average in 1,056 innings pitched with 365 strikeouts.
As a hitter, Mahaffey posted a .184 batting average (73-for-396) with 28 runs, 4 home runs and 33 RBI in 224 games pitched.