Leo Mangum played 7 seasons for the Braves, White Sox and Giants. He had 11 wins, 10 losses, an ERA of 5.37 and 78 strikeouts.
| 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 |  | L. Mangum | 1924 |  CWS | 13 | 1 | 4 | .200 | 7 | 7.09 | 12 | 1 | 0 | 0 | 47.0 | 69 | 37 | 43 | 3 | 25 | 1 | 4 | 225 | 1 | 2.30 | 4.79 | 0.48 | 0.57 | 5.3 | 11.1 | 2.00 | .359 | 8.23 | 173 | 5.02 | 125 | 13.21 | -5.5 | |
| 2 | | L. Mangum | 1925 | CWS | 7 | 1 | 0 | 1.000 | 0 | 7.80 | 6 | 0 | 0 | 0 | 15.0 | 25 | 13 | 15 | 0 | 6 | 0 | 1 | 74 | 0 | 3.60 | 3.60 | 1.00 | 0.00 | 8.1 | 8.1 | 2.07 | .403 | 9.00 | 183 | 3.51 | 82 | 15.00 | 1.2 | |
| 3 | | L. Mangum | 1928 |  NYG | 1 | 0 | 0 | 1 | 15.00 | 1 | 0 | 0 | 0 | 3.0 | 6 | 5 | 5 | 0 | 5 | 0 | 0 | 20 | 0 | 3.00 | 15.00 | 0.20 | 0.00 | 5.0 | 25.0 | 3.67 | .429 | 15.00 | 383 | 7.24 | 179 | 18.00 | -1.1 | ||
| 4 | | L. Mangum | 1932 |  BSN | 7 | 0 | 0 | 0 | 5.23 | 3 | 0 | 0 | 0 | 10.1 | 17 | 6 | 8 | 1 | 0 | 0 | 4 | 54 | 0 | 2.61 | 0.00 | 0.87 | 5.6 | 0.0 | 1.65 | .320 | 6.97 | 143 | 3.70 | 99 | 14.81 | 0 | |||
| 5 | | L. Mangum | 1933 | BSN | 25 | 4 | 3 | .571 | 5 | 3.32 | 28 | 2 | 1 | 0 | 84.0 | 93 | 31 | 33 | 2 | 11 | 0 | 10 | 352 | 0 | 3.00 | 1.18 | 2.55 | 0.21 | 8.0 | 3.1 | 1.24 | .293 | 3.54 | 106 | 2.83 | 85 | 9.96 | 4.7 | |
| 6 | | L. Mangum | 1934 | BSN | 29 | 5 | 3 | .625 | 3 | 5.72 | 28 | 1 | 0 | 0 | 94.1 | 127 | 60 | 67 | 9 | 23 | 0 | 8 | 433 | 0 | 2.67 | 2.19 | 1.22 | 0.86 | 6.5 | 5.3 | 1.59 | .316 | 6.39 | 152 | 4.50 | 118 | 12.12 | -8.3 | |
| 7 | | L. Mangum | 1935 | BSN | 3 | 0 | 0 | 0 | 3.86 | 0 | 0 | 0 | 0 | 4.2 | 6 | 2 | 3 | 0 | 2 | 0 | 2 | 22 | 0 | 0.00 | 3.86 | 0.00 | 0.00 | 0.0 | 9.1 | 1.71 | .300 | 5.79 | 103 | 4.34 | 115 | 11.57 | -0.3 | ||
| Total | 85 | 11 | 10 | .524 | 16 | 5.37 | 78 | 4 | 1 | 0 | 258.1 | 343 | 154 | 174 | 15 | 72 | 1 | 29 | 1,180 | 1 | 2.72 | 2.51 | 1.08 | 0.52 | 6.6 | 6.1 | 1.61 | .323 | 6.06 | 144 | 3.99 | 106 | 11.95 | -9.3 |
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