| 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 |
| 1888 | Boston Beaneaters | NL | MLB | - | 23 | 19 | 15 | 2.07 | 36 | 35 | 34 | 2 | 1 | 1 | 0 | 317.0 | 278 | 155 | 73 | 3 | 73 | 132 | 14 | 0 | 9 | 1.11 | 7.89 | 0.09 | 2.07 | 3.75 | 4.40 | 1.81 | |
| 1889 | Boston Beaneaters | NL | MLB | - | 24 | 1 | 2 | 5.14 | 7 | 4 | 3 | 0 | 3 | 3 | 2 | 42.0 | 53 | 35 | 24 | 3 | 23 | 10 | 2 | 0 | 2 | 1.81 | 11.36 | 0.64 | 4.93 | 2.14 | 7.50 | 0.43 | |
| 1889 | Pittsburgh Alleghenys | NL | MLB | PIT | - | 24 | 6 | 5 | 7.35 | 13 | 11 | 9 | 0 | 2 | 2 | 0 | 52.2 | 94 | 55 | 43 | 1 | 29 | 33 | 5 | 0 | 0 | 2.34 | 16.06 | 0.17 | 4.96 | 5.64 | 9.40 | 1.14 |
| 1890 | Pittsburgh Alleghenys | NL | MLB | PIT | - | 25 | 3 | 8 | 4.42 | 15 | 11 | 9 | 0 | 4 | 4 | 0 | 106.0 | 117 | 77 | 52 | 1 | 24 | 30 | 7 | 0 | 2 | 1.33 | 9.93 | 0.08 | 2.04 | 2.55 | 6.54 | 1.25 |
| Tot: | MLB (3 yrs) | MLB | 29 | 30 | 3.34 | 71 | 61 | 55 | 2 | 10 | 10 | 2 | 517.2 | 542 | 322 | 192 | 8 | 149 | 205 | 28 | 0 | 13 | 1.33 | 9.42 | 0.14 | 2.59 | 3.56 | 5.60 | 1.38 | ||||
| Tot: | NL (3 yrs) | NL | 29 | 30 | 3.34 | 71 | 61 | 55 | 2 | 10 | 10 | 2 | 517.2 | 542 | 322 | 192 | 8 | 149 | 205 | 28 | 0 | 13 | 1.33 | 9.42 | 0.14 | 2.59 | 3.56 | 5.60 | 1.38 | ||||
| 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 |
| 1888 | Boston Beaneaters | NL | MLB | - | 23 | P | 36 | 122 | 14 | 18 | 2 | 0 | 0 | 6 | 1 | 0 | 3 | 24 | 0 | 0 | 0 | 0 | 0 | 20 | 125 | 2 | 16 | .148 | .168 | .164 | .332 | .000 | .016 | .000 | 2.40 | 19.20 | 8.00 | 0.00 | ||
| 1889 | Boston Beaneaters | NL | MLB | - | 24 | P | 7 | 17 | 2 | 4 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 4 | 18 | 0 | 4 | .235 | .278 | .235 | .513 | .000 | .000 | .000 | 5.56 | 11.11 | 2.00 | 0.00 | ||
| 1889 | Pittsburgh Alleghenys | NL | MLB | PIT | - | 24 | P | 15 | 48 | 4 | 13 | 1 | 0 | 0 | 4 | 0 | 0 | 3 | 10 | 0 | 0 | 0 | 0 | 0 | 14 | 51 | 1 | 12 | .271 | .314 | .292 | .606 | .000 | .021 | .000 | 5.88 | 19.61 | 3.33 | 0.00 | |
| 1890 | Pittsburgh Alleghenys | NL | MLB | PIT | - | 25 | P | 17 | 50 | 3 | 9 | 0 | 0 | 0 | 4 | 1 | 0 | 2 | 7 | 0 | 0 | 0 | 0 | 0 | 9 | 52 | 0 | 9 | .180 | .212 | .180 | .392 | .000 | .000 | .000 | 3.85 | 13.46 | 3.50 | 0.00 | |
| Tot: | MLB (3 yrs) | MLB | 75 | 237 | 23 | 44 | 3 | 0 | 0 | 15 | 2 | 0 | 9 | 43 | 0 | 0 | 0 | 0 | 0 | 47 | 246 | 3 | 41 | .186 | .215 | .198 | .414 | .059 | .013 | .227 | 3.66 | 17.48 | 4.78 | |||||||
| Tot: | NL (3 yrs) | NL | 75 | 237 | 23 | 44 | 3 | 0 | 0 | 15 | 2 | 0 | 9 | 43 | 0 | 0 | 0 | 0 | 0 | 47 | 246 | 3 | 41 | .186 | .215 | .198 | .414 | .059 | .013 | .227 | 3.66 | 17.48 | 4.78 | |||||||
| Avg: | MLB - 162 game avg | MLB | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 55 | 62 | 39 | 61 | 39 | 70 | .447 |