| year | team name | league | level | mlb | # | age | w | l | era | g | gs | cg | sho | gr | gf | sv | ip | h | r | er | hr | bb | so | wp | bk | hb | whip | h9 | hr9 | bb9 | so9 | ra9 | so/bb |
| 1887 | Boston Beaneaters | NL | MLB | - | 19 | 21 | 14 | 3.79 | 37 | 37 | 36 | 3 | 0 | 0 | 0 | 321.0 | 317 | 203 | 135 | 20 | 122 | 81 | 10 | 0 | 20 | 1.37 | 8.89 | 0.56 | 3.42 | 2.27 | 5.69 | 0.66 | |
| 1888 | Boston Beaneaters | NL | MLB | - | 20 | 7 | 11 | 2.95 | 20 | 18 | 17 | 1 | 2 | 2 | 0 | 165.0 | 142 | 76 | 54 | 6 | 24 | 53 | 6 | 0 | 15 | 1.01 | 7.75 | 0.33 | 1.31 | 2.89 | 4.15 | 2.21 | |
| 1889 | Boston Beaneaters | NL | MLB | - | 21 | 10 | 10 | 4.40 | 22 | 19 | 18 | 1 | 3 | 3 | 1 | 178.0 | 194 | 131 | 87 | 7 | 71 | 64 | 7 | 0 | 16 | 1.49 | 9.81 | 0.35 | 3.59 | 3.24 | 6.62 | 0.90 | |
| 1890 | Boston Reds | MLB | MLB | BS2 | - | 22 | 3 | 2 | 4.79 | 10 | 7 | 5 | 1 | 3 | 3 | 0 | 62.0 | 85 | 55 | 33 | 2 | 25 | 24 | 2 | 0 | 6 | 1.77 | 12.34 | 0.29 | 3.63 | 3.48 | 7.98 | 0.96 |
| 1891 | Boston Reds | MLB | MLB | BS2 | - | 23 | 0 | 1 | 6.75 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 8.0 | 10 | 12 | 6 | 2 | 6 | 6 | 0 | 0 | 0 | 2.00 | 11.25 | 2.25 | 6.75 | 6.75 | 13.50 | 1.00 |
| 1891 | Baltimore Orioles | MLB | MLB | BLN | - | 23 | 13 | 12 | 4.10 | 32 | 27 | 20 | 1 | 5 | 5 | 1 | 224.0 | 239 | 168 | 102 | 4 | 88 | 56 | 10 | 0 | 0 | 1.46 | 9.60 | 0.16 | 3.54 | 2.25 | 6.75 | 0.64 |
| Tot: | MLB (5 yrs) | MLB | 54 | 50 | 3.92 | 122 | 109 | 97 | 7 | 13 | 13 | 2 | 958.0 | 987 | 645 | 417 | 41 | 336 | 284 | 35 | 0 | 57 | 1.38 | 9.27 | 0.39 | 3.16 | 2.67 | 6.06 | 0.85 | ||||
| Tot: | NL (3 yrs) | NL | 38 | 35 | 3.74 | 79 | 74 | 71 | 5 | 5 | 5 | 1 | 664.0 | 653 | 410 | 276 | 33 | 217 | 198 | 23 | 0 | 51 | 1.31 | 8.85 | 0.45 | 2.94 | 2.68 | 5.56 | 0.91 | ||||
| Tot: | MLB (2 yrs) | MLB | 16 | 15 | 4.32 | 43 | 35 | 26 | 2 | 8 | 8 | 1 | 294.0 | 334 | 235 | 141 | 8 | 119 | 86 | 12 | 0 | 6 | 1.54 | 10.22 | 0.24 | 3.64 | 2.63 | 7.19 | 0.72 | ||||
| Avg: | MLB - 162 Inning avg | MLB | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| year | team name | league | level | mlb | # | age | pos | tbc+ | g | ab | r | h | 2b | 3b | hr | rbi | sb | cs | bb | so | hbp | sh | sf | ibb | gdp | tb | pa | xbh | 1b | avg | obp | slg | ops | seca | iso | babip | bb% | so% | so/bb | ab/hr |
| 1887 | Boston Beaneaters | NL | MLB | - | 19 | P | 37 | 132 | 23 | 32 | 2 | 3 | 1 | 10 | 6 | 0 | 12 | 17 | 2 | 0 | 0 | 0 | 0 | 43 | 146 | 6 | 26 | .242 | .315 | .326 | .641 | .000 | .084 | .000 | 8.22 | 11.64 | 1.42 | 132.00 | ||
| 1888 | Boston Beaneaters | NL | MLB | - | 20 | P | 20 | 67 | 7 | 11 | 0 | 0 | 0 | 5 | 4 | 0 | 1 | 6 | 2 | 0 | 0 | 0 | 0 | 11 | 70 | 0 | 11 | .164 | .200 | .164 | .364 | .000 | .000 | .000 | 1.43 | 8.57 | 6.00 | 0.00 | ||
| 1889 | Boston Beaneaters | NL | MLB | - | 21 | P | 24 | 86 | 7 | 25 | 1 | 0 | 0 | 14 | 4 | 0 | 3 | 7 | 0 | 0 | 0 | 0 | 0 | 26 | 89 | 1 | 24 | .291 | .315 | .302 | .617 | .000 | .011 | .000 | 3.37 | 7.87 | 2.33 | 0.00 | ||
| 1890 | Boston Reds | MLB | MLB | BS2 | - | 22 | P | 13 | 38 | 5 | 7 | 2 | 0 | 0 | 4 | 0 | 0 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 9 | 41 | 2 | 5 | .184 | .244 | .237 | .481 | .000 | .053 | .000 | 7.32 | 7.32 | 1.00 | 0.00 | |
| 1891 | Boston Reds | MLB | MLB | BS2 | - | 23 | P | 1 | 3 | 0 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 2 | 4 | 0 | 2 | .667 | .750 | .667 | 1.417 | .000 | .000 | .000 | 0.00 | 0.00 | 0.00 | 0.00 | |
| 1891 | Baltimore Orioles | MLB | MLB | BLN | - | 23 | P | 38 | 107 | 18 | 29 | 2 | 2 | 1 | 15 | 2 | 0 | 9 | 10 | 2 | 0 | 0 | 0 | 0 | 38 | 118 | 5 | 24 | .271 | .339 | .355 | .694 | .000 | .084 | .000 | 7.63 | 8.47 | 1.11 | 107.00 | |
| Tot: | MLB (5 yrs) | MLB | 133 | 433 | 60 | 106 | 7 | 5 | 2 | 49 | 16 | 0 | 28 | 43 | 7 | 0 | 0 | 0 | 0 | 129 | 468 | 14 | 92 | .245 | .301 | .298 | .599 | .155 | .053 | .268 | 5.98 | 9.19 | 1.54 | 216.50 | ||||||
| Tot: | NL (3 yrs) | NL | 81 | 285 | 37 | 68 | 3 | 3 | 1 | 29 | 14 | 0 | 16 | 30 | 4 | 0 | 0 | 0 | 0 | 80 | 305 | 7 | 61 | .239 | .289 | .281 | .569 | .147 | .042 | .264 | 5.25 | 9.84 | 1.88 | 285.00 | ||||||
| Tot: | MLB (2 yrs) | MLB | 52 | 148 | 23 | 38 | 4 | 2 | 1 | 20 | 2 | 0 | 12 | 13 | 3 | 0 | 0 | 0 | 0 | 49 | 163 | 7 | 31 | .257 | .325 | .331 | .656 | .169 | .074 | .276 | 7.36 | 7.98 | 1.08 | 148.00 | ||||||
| Avg: | MLB - 162 game avg | MLB | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 42 | 63 | 55 | 54 | 55 | 76 | .587 |