| 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 |
| 1885 | Boston Beaneaters | NL | MLB | - | 20 | 1 | 1 | 0.00 | 2 | 2 | 2 | 1 | 0 | 0 | 0 | 11.0 | 7 | 7 | 0 | 0 | 11 | 8 | 2 | 0 | 0 | 1.64 | 5.73 | 0.00 | 9.00 | 6.55 | 5.73 | 0.73 | |
| 1886 | Boston Beaneaters | NL | MLB | - | 21 | 22 | 18 | 3.02 | 41 | 41 | 41 | 0 | 0 | 0 | 0 | 348.2 | 300 | 218 | 117 | 11 | 144 | 239 | 63 | 0 | 0 | 1.27 | 7.74 | 0.28 | 3.72 | 6.17 | 5.63 | 1.66 | |
| 1887 | Boston Beaneaters | NL | MLB | - | 22 | 6 | 8 | 5.20 | 15 | 14 | 14 | 0 | 1 | 1 | 1 | 119.1 | 138 | 107 | 69 | 4 | 41 | 41 | 12 | 0 | 2 | 1.50 | 10.41 | 0.30 | 3.09 | 3.09 | 8.07 | 1.00 | |
| 1888 | Cleveland Blues | MLB | MLB | CL3 | - | 23 | 0 | 2 | 9.00 | 2 | 2 | 2 | 0 | 0 | 0 | 0 | 16.0 | 37 | 42 | 16 | 0 | 9 | 7 | 2 | 0 | 5 | 2.88 | 20.81 | 0.00 | 5.06 | 3.94 | 23.63 | 0.78 |
| Tot: | MLB (4 yrs) | MLB | 29 | 29 | 3.67 | 60 | 59 | 59 | 1 | 1 | 1 | 1 | 495.0 | 482 | 374 | 202 | 15 | 205 | 295 | 79 | 0 | 7 | 1.39 | 8.76 | 0.27 | 3.73 | 5.36 | 6.80 | 1.44 | ||||
| Tot: | NL (3 yrs) | NL | 29 | 27 | 3.49 | 58 | 57 | 57 | 1 | 1 | 1 | 1 | 479.0 | 445 | 332 | 186 | 15 | 196 | 288 | 77 | 0 | 2 | 1.34 | 8.36 | 0.28 | 3.68 | 5.41 | 6.24 | 1.47 | ||||
| Tot: | MLB (1 yrs) | MLB | 0 | 2 | 9.00 | 2 | 2 | 2 | 0 | 0 | 0 | 0 | 16.0 | 37 | 42 | 16 | 0 | 9 | 7 | 2 | 0 | 5 | 2.88 | 20.81 | 0.00 | 5.06 | 3.94 | 23.62 | 0.78 | ||||
| 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 |
| 1885 | Boston Beaneaters | NL | MLB | - | 20 | P | 2 | 7 | 1 | 3 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 7 | 1 | 2 | .429 | .429 | .571 | 1.000 | .000 | .142 | .000 | 0.00 | 0.00 | 0.00 | 0.00 | ||
| 1886 | Boston Beaneaters | NL | MLB | - | 21 | P | 41 | 148 | 24 | 41 | 3 | 2 | 0 | 20 | 3 | 0 | 12 | 17 | 0 | 0 | 0 | 0 | 0 | 48 | 160 | 5 | 36 | .277 | .331 | .324 | .655 | .000 | .047 | .000 | 7.50 | 10.63 | 1.42 | 0.00 | ||
| 1887 | Boston Beaneaters | NL | MLB | - | 22 | P | 15 | 47 | 5 | 12 | 0 | 2 | 1 | 9 | 0 | 0 | 3 | 9 | 1 | 0 | 0 | 0 | 0 | 19 | 51 | 3 | 9 | .255 | .314 | .404 | .718 | .000 | .149 | .000 | 5.88 | 17.65 | 3.00 | 47.00 | ||
| 1888 | Cleveland Blues | MLB | MLB | CL3 | - | 23 | P-1B | 3 | 10 | 2 | 4 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 5 | 12 | 1 | 3 | .400 | .500 | .500 | 1.000 | .000 | .100 | .000 | 8.33 | 0.00 | 0.00 | 0.00 | |
| Tot: | MLB (4 yrs) | MLB | 61 | 212 | 32 | 60 | 5 | 4 | 1 | 32 | 3 | 0 | 16 | 26 | 2 | 0 | 0 | 0 | 0 | 76 | 230 | 10 | 50 | .283 | .339 | .358 | .698 | .165 | .075 | .319 | 6.96 | 11.30 | 1.63 | 212.00 | ||||||
| Tot: | NL (3 yrs) | NL | 58 | 202 | 30 | 56 | 4 | 4 | 1 | 31 | 3 | 0 | 15 | 26 | 1 | 0 | 0 | 0 | 0 | 71 | 218 | 9 | 47 | .277 | .330 | .351 | .682 | .163 | .074 | .314 | 6.88 | 11.93 | 1.73 | 202.00 | ||||||
| Tot: | MLB (1 yrs) | MLB | 3 | 10 | 2 | 4 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 5 | 12 | 1 | 3 | .400 | .500 | .500 | 1.000 | .200 | .100 | .400 | 8.33 | 0.00 | 0.00 | |||||||
| Avg: | MLB - 162 game avg | MLB | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 75 | 32 | 43 | 48 | 43 | 42 | .442 |