| 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 |
| 1895 | Washington Nationals | NL | MLB | WSN | - | 21 | 1 | 1 | 1.59 | 2 | 2 | 2 | 0 | 0 | 0 | 0 | 17.0 | 17 | 11 | 3 | 0 | 16 | 9 | 1 | 0 | 0 | 1.94 | 9.00 | 0.00 | 8.47 | 4.76 | 5.82 | 0.56 |
| 1896 | Washington Nationals | NL | MLB | WSN | - | 22 | 12 | 20 | 4.27 | 37 | 33 | 29 | 0 | 4 | 3 | 1 | 280.1 | 310 | 208 | 133 | 2 | 135 | 103 | 24 | 0 | 0 | 1.59 | 9.95 | 0.06 | 4.33 | 3.31 | 6.68 | 0.76 |
| 1897 | Washington Nationals | NL | MLB | WSN | - | 23 | 15 | 23 | 3.61 | 44 | 39 | 33 | 3 | 5 | 5 | 2 | 323.2 | 361 | 212 | 130 | 7 | 137 | 156 | 21 | 0 | 22 | 1.54 | 10.04 | 0.19 | 3.81 | 4.34 | 5.89 | 1.14 |
| 1898 | Baltimore Orioles | NL | MLB | BLN | - | 24 | 27 | 15 | 2.36 | 45 | 42 | 40 | 2 | 3 | 3 | 0 | 374.0 | 327 | 148 | 98 | 5 | 113 | 178 | 13 | 0 | 12 | 1.18 | 7.87 | 0.12 | 2.72 | 4.28 | 3.56 | 1.58 |
| 1899 | Brooklyn Superbas | NL | MLB | - | 25 | 19 | 15 | 3.50 | 37 | 34 | 27 | 1 | 3 | 3 | 1 | 275.1 | 295 | 166 | 107 | 4 | 122 | 105 | 16 | 1 | 12 | 1.51 | 9.64 | 0.13 | 3.99 | 3.43 | 5.43 | 0.86 | |
| 1901 | Brooklyn Superbas | NL | MLB | - | 27 | 5 | 6 | 4.75 | 13 | 12 | 6 | 0 | 1 | 1 | 0 | 91.0 | 104 | 71 | 48 | 1 | 40 | 42 | 4 | 0 | 7 | 1.58 | 10.29 | 0.10 | 3.96 | 4.15 | 7.02 | 1.05 | |
| Tot: | MLB (6 yrs) | MLB | 79 | 80 | 3.43 | 178 | 162 | 137 | 6 | 15 | 16 | 4 | 1361.1 | 1414 | 816 | 519 | 19 | 563 | 593 | 79 | 1 | 53 | 1.45 | 9.35 | 0.13 | 3.72 | 3.92 | 5.39 | 1.05 | ||||
| Tot: | NL (6 yrs) | NL | 79 | 80 | 3.43 | 178 | 162 | 137 | 6 | 15 | 16 | 4 | 1361.1 | 1414 | 816 | 519 | 19 | 563 | 593 | 79 | 1 | 53 | 1.45 | 9.35 | 0.13 | 3.72 | 3.92 | 5.39 | 1.05 | ||||
| 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 |
| 1895 | Washington Nationals | NL | MLB | WSN | - | 21 | P | 2 | 7 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 7 | 0 | 1 | .143 | .143 | .143 | .286 | .000 | .000 | .000 | 0.00 | 0.00 | 0.00 | 0.00 | |
| 1896 | Washington Nationals | NL | MLB | WSN | - | 22 | P | 37 | 111 | 8 | 18 | 1 | 0 | 0 | 5 | 1 | 0 | 3 | 19 | 0 | 3 | 0 | 0 | 0 | 19 | 117 | 1 | 17 | .162 | .184 | .171 | .355 | .000 | .009 | .000 | 2.56 | 16.24 | 6.33 | 0.00 | |
| 1897 | Washington Nationals | NL | MLB | WSN | - | 23 | P | 44 | 124 | 12 | 21 | 1 | 2 | 0 | 13 | 1 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 26 | 129 | 3 | 18 | .169 | .202 | .210 | .412 | .000 | .041 | .000 | 3.88 | 0.00 | 0.00 | 0.00 | |
| 1898 | Baltimore Orioles | NL | MLB | BLN | - | 24 | P | 45 | 149 | 12 | 27 | 7 | 1 | 0 | 14 | 2 | 0 | 5 | 0 | 0 | 1 | 0 | 0 | 0 | 36 | 155 | 8 | 19 | .181 | .208 | .242 | .450 | .000 | .061 | .000 | 3.23 | 0.00 | 0.00 | 0.00 | |
| 1899 | Brooklyn Superbas | NL | MLB | - | 25 | P | 37 | 112 | 8 | 19 | 4 | 1 | 0 | 6 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 25 | 114 | 5 | 14 | .170 | .184 | .223 | .407 | .000 | .053 | .000 | 1.75 | 0.00 | 0.00 | 0.00 | ||
| 1901 | Brooklyn Superbas | NL | MLB | - | 27 | P | 13 | 34 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 36 | 0 | 1 | .029 | .083 | .029 | .112 | .000 | .000 | .000 | 5.56 | 0.00 | 0.00 | 0.00 | ||
| Tot: | MLB (6 yrs) | MLB | 178 | 537 | 42 | 87 | 13 | 4 | 0 | 39 | 5 | 0 | 17 | 19 | 0 | 4 | 0 | 0 | 0 | 108 | 558 | 17 | 70 | .162 | .188 | .201 | .389 | .080 | .039 | .168 | 3.05 | 3.41 | 1.12 | |||||||
| Tot: | NL (6 yrs) | NL | 178 | 537 | 42 | 87 | 13 | 4 | 0 | 39 | 5 | 0 | 17 | 19 | 0 | 4 | 0 | 0 | 0 | 108 | 558 | 17 | 70 | .162 | .188 | .201 | .389 | .080 | .039 | .168 | 3.05 | 3.41 | 1.12 | |||||||
| Avg: | MLB - 162 game avg | MLB | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 95 | 23 | 72 | 67 | 72 | 75 | .532 |