| 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 |
| 1881 | Boston Beaneaters | NL | MLB | - | 23 | 31 | 33 | 2.48 | 66 | 63 | 57 | 6 | 3 | 3 | 0 | 552.1 | 548 | 284 | 152 | 6 | 90 | 162 | 46 | 1 | 0 | 1.16 | 8.93 | 0.10 | 1.47 | 2.64 | 4.63 | 1.80 | |
| 1882 | Boston Beaneaters | NL | MLB | - | 24 | 24 | 21 | 2.64 | 49 | 48 | 46 | 3 | 1 | 1 | 0 | 420.0 | 404 | 229 | 123 | 3 | 41 | 180 | 29 | 0 | 0 | 1.06 | 8.66 | 0.06 | 0.88 | 3.86 | 4.91 | 4.39 | |
| 1883 | Boston Beaneaters | NL | MLB | - | 25 | 37 | 21 | 2.24 | 62 | 56 | 54 | 1 | 6 | 5 | 2 | 514.0 | 492 | 258 | 128 | 7 | 35 | 345 | 37 | 0 | 0 | 1.03 | 8.61 | 0.12 | 0.61 | 6.04 | 4.52 | 9.86 | |
| 1884 | Boston Beaneaters | NL | MLB | - | 26 | 23 | 14 | 2.09 | 38 | 37 | 35 | 6 | 1 | 1 | 0 | 336.0 | 272 | 140 | 78 | 12 | 27 | 270 | 18 | 0 | 0 | 0.89 | 7.29 | 0.32 | 0.72 | 7.23 | 3.75 | 10.00 | |
| 1885 | Boston Beaneaters | NL | MLB | - | 27 | 18 | 32 | 2.98 | 51 | 50 | 50 | 2 | 1 | 1 | 0 | 441.1 | 503 | 286 | 146 | 14 | 37 | 200 | 32 | 0 | 0 | 1.22 | 10.26 | 0.29 | 0.75 | 4.08 | 5.83 | 5.41 | |
| 1886 | Kansas City Cowboys | NL | MLB | KCN | - | 28 | 12 | 32 | 4.49 | 46 | 44 | 42 | 3 | 2 | 2 | 0 | 393.0 | 465 | 292 | 196 | 9 | 55 | 167 | 29 | 0 | 0 | 1.32 | 10.65 | 0.21 | 1.26 | 3.82 | 6.69 | 3.04 |
| 1887 | Washington Nationals | NL | MLB | WS8 | - | 29 | 24 | 21 | 3.22 | 47 | 47 | 46 | 3 | 0 | 0 | 0 | 404.2 | 430 | 253 | 145 | 16 | 42 | 146 | 14 | 0 | 16 | 1.17 | 9.56 | 0.36 | 0.93 | 3.25 | 5.63 | 3.48 |
| 1888 | Washington Nationals | NL | MLB | WS8 | - | 30 | 18 | 21 | 3.05 | 39 | 39 | 37 | 2 | 0 | 0 | 0 | 325.0 | 317 | 184 | 110 | 7 | 54 | 79 | 7 | 1 | 9 | 1.14 | 8.78 | 0.19 | 1.50 | 2.19 | 5.10 | 1.46 |
| 1889 | Indianapolis Hoosiers | NL | MLB | IN3 | - | 31 | 2 | 7 | 6.81 | 9 | 8 | 7 | 0 | 1 | 1 | 0 | 70.0 | 106 | 73 | 53 | 4 | 19 | 16 | 2 | 0 | 2 | 1.79 | 13.63 | 0.51 | 2.44 | 2.06 | 9.39 | 0.84 |
| 1890 | Philadelphia Athletics | MLB | MLB | PHQ | - | 32 | 2 | 2 | 5.18 | 6 | 4 | 3 | 0 | 2 | 2 | 0 | 40.0 | 61 | 27 | 23 | 1 | 11 | 6 | 0 | 0 | 0 | 1.80 | 13.73 | 0.23 | 2.48 | 1.35 | 6.08 | 0.55 |
| Tot: | MLB (10 yrs) | MLB | 191 | 204 | 2.97 | 413 | 396 | 377 | 26 | 16 | 17 | 2 | 3496.1 | 3598 | 2026 | 1154 | 79 | 411 | 1571 | 214 | 2 | 27 | 1.15 | 9.26 | 0.20 | 1.06 | 4.04 | 5.22 | 3.82 | ||||
| Tot: | NL (9 yrs) | NL | 189 | 202 | 2.95 | 407 | 392 | 374 | 26 | 14 | 15 | 2 | 3456.1 | 3537 | 1999 | 1131 | 78 | 400 | 1565 | 214 | 2 | 27 | 1.14 | 9.21 | 0.20 | 1.04 | 4.08 | 5.21 | 3.91 | ||||
| Tot: | MLB (1 yrs) | MLB | 2 | 2 | 5.18 | 6 | 4 | 3 | 0 | 2 | 2 | 0 | 40.0 | 61 | 27 | 23 | 1 | 11 | 6 | 0 | 0 | 0 | 1.80 | 13.72 | 0.22 | 2.48 | 1.35 | 6.08 | 0.55 | ||||
| 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 |
| 1881 | Boston Beaneaters | NL | MLB | - | 23 | P | 75 | 282 | 37 | 72 | 17 | 3 | 0 | 32 | 0 | 0 | 19 | 18 | 0 | 0 | 0 | 0 | 0 | 95 | 301 | 20 | 52 | .255 | .302 | .337 | .639 | .000 | .082 | .000 | 6.31 | 5.98 | 0.95 | 0.00 | ||
| 1882 | Boston Beaneaters | NL | MLB | - | 24 | P | 61 | 251 | 49 | 81 | 18 | 7 | 5 | 48 | 0 | 0 | 24 | 13 | 0 | 0 | 0 | 0 | 0 | 128 | 275 | 30 | 51 | .323 | .382 | .510 | .892 | .000 | .187 | .000 | 8.73 | 4.73 | 0.54 | 50.20 | ||
| 1883 | Boston Beaneaters | NL | MLB | - | 25 | P-OF | 96 | 409 | 78 | 115 | 27 | 10 | 5 | 57 | 0 | 0 | 25 | 29 | 0 | 0 | 0 | 0 | 0 | 177 | 434 | 42 | 73 | .281 | .323 | .433 | .756 | .000 | .152 | .000 | 5.76 | 6.68 | 1.16 | 81.80 | ||
| 1884 | Boston Beaneaters | NL | MLB | - | 26 | P | 66 | 270 | 41 | 70 | 17 | 5 | 3 | 40 | 0 | 0 | 16 | 38 | 0 | 0 | 0 | 0 | 0 | 106 | 286 | 25 | 45 | .259 | .301 | .393 | .694 | .000 | .134 | .000 | 5.59 | 13.29 | 2.38 | 90.00 | ||
| 1885 | Boston Beaneaters | NL | MLB | - | 27 | P | 72 | 290 | 35 | 68 | 8 | 4 | 0 | 36 | 0 | 0 | 17 | 24 | 0 | 0 | 0 | 0 | 0 | 84 | 307 | 12 | 56 | .234 | .277 | .290 | .567 | .000 | .056 | .000 | 5.54 | 7.82 | 1.41 | 0.00 | ||
| 1886 | Kansas City Cowboys | NL | MLB | KCN | - | 28 | P | 67 | 247 | 25 | 59 | 13 | 3 | 2 | 23 | 5 | 0 | 29 | 39 | 0 | 0 | 0 | 0 | 0 | 84 | 276 | 18 | 41 | .239 | .319 | .340 | .659 | .000 | .101 | .000 | 10.51 | 14.13 | 1.34 | 123.50 | |
| 1887 | Washington Nationals | NL | MLB | WS8 | - | 29 | P | 54 | 201 | 29 | 53 | 9 | 6 | 2 | 22 | 10 | 0 | 18 | 24 | 0 | 0 | 0 | 0 | 0 | 80 | 219 | 17 | 36 | .264 | .324 | .398 | .722 | .000 | .134 | .000 | 8.22 | 10.96 | 1.33 | 100.50 | |
| 1888 | Washington Nationals | NL | MLB | WS8 | - | 30 | P | 42 | 141 | 13 | 24 | 0 | 0 | 1 | 17 | 3 | 0 | 7 | 20 | 0 | 0 | 0 | 0 | 0 | 27 | 148 | 1 | 23 | .170 | .209 | .191 | .400 | .000 | .021 | .000 | 4.73 | 13.51 | 2.86 | 141.00 | |
| 1889 | Indianapolis Hoosiers | NL | MLB | IN3 | - | 31 | P | 10 | 32 | 6 | 12 | 4 | 1 | 0 | 4 | 2 | 0 | 5 | 6 | 1 | 0 | 0 | 0 | 0 | 18 | 38 | 5 | 7 | .375 | .474 | .563 | 1.037 | .000 | .188 | .000 | 13.16 | 15.79 | 1.20 | 0.00 | |
| 1890 | Philadelphia Athletics | MLB | MLB | PHQ | - | 32 | P | 7 | 21 | 3 | 5 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 22 | 0 | 5 | .238 | .273 | .238 | .511 | .000 | .000 | .000 | 4.55 | 0.00 | 0.00 | 0.00 | |
| Tot: | MLB (10 yrs) | MLB | 550 | 2144 | 316 | 559 | 113 | 39 | 18 | 280 | 20 | 0 | 161 | 211 | 1 | 0 | 0 | 0 | 0 | 804 | 2306 | 170 | 389 | .261 | .313 | .375 | .688 | .199 | .114 | .283 | 6.98 | 9.15 | 1.31 | 119.11 | ||||||
| Tot: | NL (9 yrs) | NL | 543 | 2123 | 313 | 554 | 113 | 39 | 18 | 279 | 20 | 0 | 160 | 211 | 1 | 0 | 0 | 0 | 0 | 799 | 2284 | 170 | 384 | .261 | .313 | .376 | .689 | .200 | .115 | .283 | 7.01 | 9.24 | 1.32 | 117.94 | ||||||
| Tot: | MLB (1 yrs) | MLB | 7 | 21 | 3 | 5 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 22 | 0 | 5 | .238 | .273 | .238 | .511 | .048 | .000 | .238 | 4.55 | 0.00 | 0.00 | |||||||
| Avg: | MLB - 162 game avg | MLB | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 57 | 89 | 49 | 75 | 49 | 85 | .444 |