Born November 21, 1851
Baltimore, MD, USA
Bobby Mathews pitched the first game in the history of the National Association on May 4, 1871, and won it, which makes his the first pitch thrown in a professional league. He was nineteen.
He then won 297 games over sixteen seasons, completing 525 of his 568 starts and working 4,956 innings, in an era when a club carried one or two pitchers and expected them to finish what they began. He won thirty or more games in five different seasons.
Born in Baltimore in 1851 and listed at 5 feet 5 inches, Mathews is often credited with an early version of the spitball. He died on April 17, 1898, at forty-six.
| Year | Team | G | AB | R | H | 2B | 3B | HR | RBI | BB | SO | SB | AVG |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1871* | KEK | 19 | 89 | 15 | 24 | 3 | 1 | 0 | 10 | 2 | 0 | 2 | .270 |
| 1872* | BAL | 50 | 222 | 36 | 50 | 2 | 0 | 0 | 22 | 3 | 2 | 3 | .225 |
| 1873* | NYU | 52 | 223 | 40 | 43 | 3 | 3 | 0 | 14 | 10 | 3 | 1 | .193 |
| 1874* | NYU | 65 | 298 | 46 | 72 | 6 | 1 | 0 | 30 | 3 | 4 | 2 | .242 |
| 1875* | NYU | 70 | 264 | 23 | 48 | 6 | 2 | 0 | 15 | 2 | 5 | 1 | .182 |
| 1876 | NYU | 56 | 218 | 19 | 40 | 4 | 1 | 0 | 9 | 3 | 2 | 0 | .183 |
| 1877 | CIN | 15 | 59 | 5 | 10 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | .169 |
| 1879 | PRO | 43 | 173 | 25 | 35 | 2 | 0 | 1 | 10 | 7 | 12 | 0 | .202 |
| 1881 | BSN/PRO | 35 | 128 | 8 | 23 | 3 | 0 | 0 | 8 | 5 | 11 | 0 | .180 |
| 1882 | BSN | 45 | 169 | 17 | 38 | 6 | 0 | 0 | 13 | 8 | 18 | 0 | .225 |
| 1883 | PHA | 45 | 167 | 15 | 31 | 2 | 0 | 0 | 11 | 5 | 0 | 0 | .186 |
| 1884 | PHA | 49 | 184 | 26 | 34 | 5 | 1 | 0 | 0 | 7 | 0 | 0 | .185 |
| 1885 | PHA | 48 | 179 | 22 | 30 | 3 | 0 | 0 | 12 | 10 | 0 | 0 | .168 |
| 1886 | PHA | 24 | 88 | 16 | 21 | 3 | 0 | 0 | 10 | 3 | 0 | 1 | .239 |
| 1887 | PHA | 7 | 25 | 5 | 5 | 0 | 0 | 0 | 0 | 4 | 3 | 0 | .200 |
| Major leagues | — | 367 | 1390 | 158 | 267 | 28 | 2 | 1 | 73 | 53 | 48 | 1 | .192 |
| All seasons | — | 623 | 2486 | 318 | 504 | 48 | 9 | 1 | 164 | 73 | 62 | 10 | .203 |
| Year | Team | W | L | G | GS | SV | IP | H | ER | BB | SO | ERA |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1871* | KEK | 6 | 11 | 19 | 19 | 0 | 169.0 | 261 | 97 | 21 | 17 | 5.17 |
| 1872* | BAL | 25 | 18 | 49 | 47 | 0 | 406.0 | 480 | 144 | 52 | 57 | 3.19 |
| 1873* | NYU | 29 | 23 | 52 | 52 | 0 | 443.0 | 489 | 127 | 62 | 79 | 2.58 |
| 1874* | NYU | 42 | 22 | 65 | 65 | 0 | 578.0 | 652 | 122 | 41 | 101 | 1.90 |
| 1875* | NYU | 29 | 38 | 70 | 70 | 0 | 625.2 | 711 | 173 | 20 | 75 | 2.49 |
| 1876 | NYU | 21 | 34 | 56 | 56 | 0 | 516.0 | 693 | 164 | 24 | 37 | 2.86 |
| 1877 | CIN | 3 | 12 | 15 | 15 | 0 | 129.1 | 208 | 58 | 17 | 9 | 4.04 |
| 1879 | PRO | 12 | 6 | 27 | 25 | 1 | 189.0 | 194 | 48 | 26 | 90 | 2.29 |
| 1881 | BSN/PRO | 5 | 8 | 19 | 15 | 2 | 125.1 | 143 | 42 | 32 | 33 | 3.02 |
| 1882 | BSN | 19 | 15 | 34 | 32 | 0 | 285.0 | 278 | 91 | 22 | 153 | 2.87 |
| 1883 | PHA | 30 | 13 | 44 | 44 | 0 | 381.0 | 396 | 104 | 31 | 203 | 2.46 |
| 1884 | PHA | 30 | 18 | 49 | 49 | 0 | 430.2 | 401 | 159 | 49 | 286 | 3.32 |
| 1885 | PHA | 30 | 17 | 48 | 48 | 0 | 422.1 | 394 | 114 | 57 | 286 | 2.43 |
| 1886 | PHA | 13 | 9 | 24 | 24 | 0 | 197.2 | 226 | 87 | 53 | 93 | 3.96 |
| 1887 | PHA | 3 | 4 | 7 | 7 | 0 | 58.0 | 75 | 43 | 25 | 9 | 6.67 |
| Major leagues | — | 166 | 136 | 323 | 315 | 3 | 2734.1 | 3008 | 910 | 336 | 1199 | 3.00 |
| All seasons | — | 297 | 248 | 578 | 568 | 3 | 4956.0 | 5601 | 1573 | 532 | 1528 | 2.86 |
Seasons outside MLB's recognized major leagues appear in All seasons, but not in Major leagues or the leaderboards. For Bobby Mathews, that is 1871–1875. Why totals can differ.
Baltimore, MD, USA
Bobby Mathews made a major-league debut on May 4, 1871.
Bobby Mathews played a final major-league game on October 10, 1887.
Image: Kalamazoo Bats Cabinets, public domain