| 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 | Chicago White Stockings | NL | MLB | CHN | - | 20 | 4 | 1 | 1.07 | 5 | 5 | 5 | 1 | 0 | 0 | 0 | 42.0 | 32 | 20 | 5 | 1 | 9 | 17 | 2 | 0 | 0 | 0.98 | 6.86 | 0.21 | 1.93 | 3.64 | 4.29 | 1.89 |
| 1889 | Chicago White Stockings | NL | MLB | CHN | - | 21 | 16 | 13 | 3.59 | 32 | 30 | 27 | 0 | 2 | 2 | 0 | 276.0 | 307 | 177 | 110 | 14 | 72 | 63 | 15 | 0 | 7 | 1.37 | 10.01 | 0.46 | 2.35 | 2.05 | 5.77 | 0.88 |
| 1890 | Chicago Pirates | MLB | MLB | CHP | - | 22 | 3 | 6 | 6.23 | 12 | 6 | 6 | 0 | 6 | 6 | 1 | 69.1 | 98 | 71 | 48 | 4 | 25 | 17 | 5 | 0 | 0 | 1.77 | 12.72 | 0.52 | 3.25 | 2.21 | 9.22 | 0.68 |
| 1891 | Cincinnati Kelly's Killers | MLB | MLB | CN3 | - | 23 | 13 | 19 | 4.52 | 35 | 31 | 29 | 1 | 4 | 4 | 0 | 289.0 | 332 | 225 | 145 | 10 | 124 | 101 | 0 | 0 | 0 | 1.58 | 10.34 | 0.31 | 3.86 | 3.15 | 7.01 | 0.81 |
| 1891 | Milwaukee Brewers | MLB | MLB | ML3 | - | 23 | 6 | 4 | 2.20 | 10 | 10 | 10 | 0 | 0 | 0 | 0 | 86.0 | 92 | 41 | 21 | 2 | 21 | 27 | 0 | 0 | 0 | 1.31 | 9.63 | 0.21 | 2.20 | 2.83 | 4.29 | 1.29 |
| 1892 | St. Louis Browns | NL | MLB | SL4 | - | 24 | 2 | 8 | 5.63 | 10 | 10 | 6 | 0 | 0 | 0 | 0 | 64.0 | 90 | 58 | 40 | 1 | 24 | 16 | 8 | 0 | 0 | 1.78 | 12.66 | 0.14 | 3.38 | 2.25 | 8.16 | 0.67 |
| 1892 | Cincinnati Reds | NL | MLB | CIN | - | 24 | 19 | 10 | 2.33 | 33 | 27 | 24 | 3 | 6 | 6 | 1 | 259.1 | 251 | 101 | 67 | 6 | 49 | 45 | 2 | 0 | 0 | 1.16 | 8.71 | 0.21 | 1.70 | 1.56 | 3.51 | 0.92 |
| 1893 | Cincinnati Reds | NL | MLB | CIN | - | 25 | 18 | 15 | 4.13 | 37 | 30 | 28 | 1 | 7 | 7 | 2 | 287.1 | 332 | 187 | 132 | 17 | 93 | 53 | 5 | 0 | 0 | 1.48 | 10.40 | 0.53 | 2.91 | 1.66 | 5.86 | 0.57 |
| 1894 | Cincinnati Reds | NL | MLB | CIN | - | 26 | 19 | 22 | 5.07 | 45 | 40 | 34 | 1 | 5 | 5 | 1 | 348.0 | 471 | 282 | 196 | 27 | 106 | 49 | 9 | 0 | 0 | 1.66 | 12.18 | 0.70 | 2.74 | 1.27 | 7.29 | 0.46 |
| 1895 | Cincinnati Reds | NL | MLB | CIN | - | 27 | 18 | 15 | 4.24 | 37 | 31 | 23 | 2 | 6 | 6 | 0 | 280.1 | 355 | 191 | 132 | 10 | 74 | 46 | 7 | 0 | 0 | 1.53 | 11.40 | 0.32 | 2.38 | 1.48 | 6.13 | 0.62 |
| 1896 | Cincinnati Reds | NL | MLB | CIN | - | 28 | 24 | 11 | 3.15 | 36 | 34 | 30 | 3 | 2 | 2 | 1 | 288.2 | 321 | 144 | 101 | 8 | 60 | 57 | 3 | 0 | 0 | 1.32 | 10.01 | 0.25 | 1.87 | 1.78 | 4.49 | 0.95 |
| 1897 | Cincinnati Reds | NL | MLB | CIN | - | 29 | 18 | 13 | 3.78 | 37 | 31 | 22 | 0 | 6 | 6 | 0 | 247.1 | 315 | 142 | 104 | 5 | 56 | 41 | 4 | 0 | 11 | 1.50 | 11.46 | 0.18 | 2.04 | 1.49 | 5.17 | 0.73 |
| 1898 | Cincinnati Reds | NL | MLB | CIN | - | 30 | 16 | 10 | 3.04 | 31 | 28 | 24 | 0 | 3 | 3 | 0 | 240.0 | 257 | 117 | 81 | 3 | 42 | 29 | 2 | 0 | 16 | 1.25 | 9.64 | 0.11 | 1.58 | 1.09 | 4.39 | 0.69 |
| 1899 | Cincinnati Reds | NL | MLB | CIN | - | 31 | 0 | 5 | 5.51 | 5 | 5 | 2 | 0 | 0 | 0 | 0 | 32.2 | 48 | 26 | 20 | 1 | 9 | 2 | 1 | 0 | 1 | 1.74 | 13.22 | 0.28 | 2.48 | 0.55 | 7.16 | 0.22 |
| Tot: | MLB (12 yrs) | MLB | 176 | 152 | 3.85 | 365 | 318 | 270 | 12 | 47 | 47 | 6 | 2810.0 | 3301 | 1782 | 1202 | 109 | 764 | 563 | 63 | 0 | 35 | 1.45 | 10.57 | 0.35 | 2.45 | 1.80 | 5.71 | 0.74 | ||||
| Tot: | NL (10 yrs) | NL | 154 | 123 | 3.76 | 308 | 271 | 225 | 11 | 37 | 37 | 5 | 2365.2 | 2779 | 1445 | 988 | 93 | 594 | 418 | 58 | 0 | 35 | 1.43 | 10.57 | 0.35 | 2.26 | 1.59 | 5.50 | 0.70 | ||||
| Tot: | MLB (2 yrs) | MLB | 22 | 29 | 4.33 | 57 | 47 | 45 | 1 | 10 | 10 | 1 | 444.1 | 522 | 337 | 214 | 16 | 170 | 145 | 5 | 0 | 0 | 1.56 | 10.57 | 0.32 | 3.44 | 2.94 | 6.83 | 0.85 | ||||
| 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 | Chicago White Stockings | NL | MLB | CHN | - | 20 | P | 5 | 21 | 2 | 4 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 5 | 21 | 1 | 3 | .190 | .190 | .238 | .428 | .000 | .048 | .000 | 0.00 | 23.81 | 0.00 | 0.00 | |
| 1889 | Chicago White Stockings | NL | MLB | CHN | - | 21 | P | 36 | 135 | 14 | 27 | 1 | 1 | 1 | 6 | 0 | 0 | 4 | 8 | 0 | 0 | 0 | 0 | 0 | 33 | 139 | 3 | 24 | .200 | .223 | .244 | .467 | .000 | .044 | .000 | 2.88 | 5.76 | 2.00 | 135.00 | |
| 1890 | Chicago Pirates | MLB | MLB | CHP | - | 22 | P | 16 | 53 | 10 | 14 | 2 | 0 | 0 | 11 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 16 | 53 | 2 | 12 | .264 | .264 | .302 | .566 | .000 | .038 | .000 | 0.00 | 3.77 | 0.00 | 0.00 | |
| 1891 | Cincinnati Kelly's Killers | MLB | MLB | CN3 | - | 23 | P | 37 | 141 | 24 | 40 | 4 | 3 | 0 | 18 | 4 | 0 | 5 | 14 | 0 | 0 | 0 | 0 | 0 | 50 | 146 | 7 | 33 | .284 | .308 | .355 | .663 | .000 | .071 | .000 | 3.42 | 9.59 | 2.80 | 0.00 | |
| 1891 | Milwaukee Brewers | MLB | MLB | ML3 | - | 23 | P | 11 | 40 | 1 | 9 | 1 | 0 | 0 | 2 | 1 | 0 | 1 | 2 | 1 | 0 | 0 | 0 | 0 | 10 | 42 | 1 | 8 | .225 | .262 | .250 | .512 | .000 | .025 | .000 | 2.38 | 4.76 | 2.00 | 0.00 | |
| 1892 | St. Louis Browns | NL | MLB | SL4 | - | 24 | P | 10 | 25 | 4 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 29 | 0 | 2 | .080 | .207 | .080 | .287 | .000 | .000 | .000 | 13.79 | 6.90 | 0.50 | 0.00 | |
| 1892 | Cincinnati Reds | NL | MLB | CIN | - | 24 | P | 41 | 132 | 15 | 21 | 0 | 2 | 0 | 6 | 2 | 0 | 4 | 9 | 1 | 0 | 0 | 0 | 0 | 25 | 137 | 2 | 19 | .159 | .190 | .189 | .379 | .000 | .030 | .000 | 2.92 | 6.57 | 2.25 | 0.00 | |
| 1893 | Cincinnati Reds | NL | MLB | CIN | - | 25 | P | 38 | 120 | 22 | 24 | 1 | 2 | 1 | 17 | 2 | 0 | 9 | 5 | 0 | 0 | 0 | 0 | 0 | 32 | 129 | 4 | 20 | .200 | .256 | .267 | .523 | .000 | .067 | .000 | 6.98 | 3.88 | 0.56 | 120.00 | |
| 1894 | Cincinnati Reds | NL | MLB | CIN | - | 26 | P | 54 | 172 | 31 | 46 | 9 | 2 | 2 | 28 | 0 | 0 | 15 | 13 | 0 | 0 | 0 | 0 | 0 | 65 | 187 | 13 | 33 | .267 | .326 | .378 | .704 | .000 | .111 | .000 | 8.02 | 6.95 | 0.87 | 86.00 | |
| 1895 | Cincinnati Reds | NL | MLB | CIN | - | 27 | P | 37 | 113 | 14 | 30 | 3 | 5 | 1 | 16 | 2 | 0 | 5 | 5 | 0 | 1 | 0 | 0 | 0 | 46 | 119 | 9 | 21 | .265 | .297 | .407 | .704 | .000 | .142 | .000 | 4.20 | 4.20 | 1.00 | 113.00 | |
| 1896 | Cincinnati Reds | NL | MLB | CIN | - | 28 | P | 36 | 110 | 17 | 29 | 4 | 4 | 0 | 15 | 3 | 0 | 11 | 15 | 1 | 3 | 0 | 0 | 0 | 41 | 125 | 8 | 21 | .264 | .336 | .373 | .709 | .000 | .109 | .000 | 8.80 | 12.00 | 1.36 | 0.00 | |
| 1897 | Cincinnati Reds | NL | MLB | CIN | - | 29 | P | 37 | 94 | 13 | 25 | 1 | 1 | 0 | 10 | 0 | 0 | 5 | 0 | 1 | 7 | 0 | 0 | 0 | 28 | 107 | 2 | 23 | .266 | .310 | .298 | .608 | .000 | .032 | .000 | 4.67 | 0.00 | 0.00 | 0.00 | |
| 1898 | Cincinnati Reds | NL | MLB | CIN | - | 30 | P | 31 | 85 | 11 | 12 | 1 | 1 | 0 | 5 | 1 | 0 | 7 | 0 | 2 | 1 | 0 | 0 | 0 | 15 | 95 | 2 | 10 | .141 | .223 | .176 | .399 | .000 | .035 | .000 | 7.37 | 0.00 | 0.00 | 0.00 | |
| 1899 | Cincinnati Reds | NL | MLB | CIN | - | 31 | P | 5 | 11 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 11 | 0 | 4 | .364 | .364 | .364 | .728 | .000 | .000 | .000 | 0.00 | 0.00 | 0.00 | 0.00 | |
| Tot: | MLB (12 yrs) | MLB | 394 | 1252 | 178 | 287 | 28 | 21 | 5 | 136 | 16 | 0 | 70 | 80 | 6 | 12 | 0 | 0 | 0 | 372 | 1340 | 54 | 233 | .229 | .273 | .297 | .570 | .137 | .068 | .242 | 5.22 | 5.97 | 1.14 | 250.40 | ||||||
| Tot: | NL (10 yrs) | NL | 330 | 1018 | 143 | 224 | 21 | 18 | 5 | 105 | 10 | 0 | 64 | 62 | 5 | 12 | 0 | 0 | 0 | 296 | 1099 | 44 | 180 | .220 | .270 | .291 | .560 | .143 | .071 | .230 | 5.82 | 5.64 | 0.97 | 203.60 | ||||||
| Tot: | MLB (2 yrs) | MLB | 64 | 234 | 35 | 63 | 7 | 3 | 0 | 31 | 6 | 0 | 6 | 18 | 1 | 0 | 0 | 0 | 0 | 76 | 241 | 10 | 53 | .269 | .290 | .325 | .615 | .107 | .056 | .292 | 2.49 | 7.47 | 3.00 | |||||||
| Avg: | MLB - 162 game avg | MLB | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 22 | 84 | 43 | 50 | 43 | 80 | .523 |