The Boston Americans and the Philadelphia Phillies were tied for allowing the most runs in a season in their first 2 games, with 22 runs in 1901.
| TEAM | R | SEASON | G | W% | W | L | ERA | SO | SHO | SV | IP | H | ER | HR | BB | HBP | IBB | TBF | WP | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | WHIP | BABIP | RA | H/9 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | Americans | 22 | 1901 | 2 | .000 | 0 | 2 | 0.00 | 3 | 0 | 0 | 16.0 | 22 | 0 | 0 | 11 | 0 | 38 | 0 | 1.69 | 6.19 | 0.27 | 0.00 | 7.9 | 28.9 | 2.06 | .917 | 12.38 | 12.38 | |
| 2 |  | Phillies | 22 | 1901 | 2 | .000 | 0 | 2 | 0.00 | 12 | 0 | 0 | 17.0 | 25 | 0 | 1 | 13 | 1 | 43 | 0 | 6.35 | 6.88 | 0.92 | 0.53 | 27.9 | 30.2 | 2.24 | 1.500 | 11.65 | 13.24 | |
| 3 |  | Brewers | 20 | 1901 | 2 | .000 | 0 | 2 | 0.00 | 7 | 0 | 0 | 17.1 | 31 | 0 | 0 | 10 | 1 | 42 | 4 | 3.63 | 5.19 | 0.70 | 0.00 | 16.7 | 23.8 | 2.37 | 1.292 | 10.38 | 16.10 | |
| 4 |  | Tigers | 18 | 1901 | 2 | 1.000 | 2 | 0 | 0.00 | 8 | 0 | 0 | 18.0 | 23 | 0 | 0 | 11 | 0 | 0 | 1 | 4.00 | 5.50 | 0.73 | 0.00 | 1.89 | -1.211 | 9.00 | 11.50 | |||
| 5 |  | Orphans | 18 | 1901 | 2 | .500 | 1 | 1 | 0.00 | 7 | 0 | 0 | 17.0 | 24 | 0 | 3 | 7 | 3 | 84 | 0 | 3.71 | 3.71 | 1.00 | 1.59 | 8.3 | 8.3 | 1.82 | .328 | 9.53 | 12.71 | |
| 6 |  | Cardinals | 17 | 1901 | 2 | .500 | 1 | 1 | 0.00 | -5 | 0 | 0 | 18.0 | 33 | 0 | 1 | 3 | 2 | 88 | 0 | -2.50 | 1.50 | -1.67 | 0.50 | -5.7 | 3.4 | 2.00 | .368 | 8.50 | 16.50 | |
| 7 |  | Athletics | 16 | 1901 | 2 | .000 | 0 | 2 | 0.00 | 9 | 0 | 0 | 18.0 | 27 | 0 | 1 | 4 | 0 | 89 | 0 | 4.50 | 2.00 | 2.25 | 0.50 | 10.1 | 4.5 | 1.72 | .347 | 8.00 | 13.50 | |
| 8 |  | Blues | 15 | 1901 | 2 | .000 | 0 | 2 | 0.00 | 4 | 0 | 0 | 16.0 | 17 | 0 | 0 | 11 | 0 | 76 | 1 | 2.25 | 6.19 | 0.36 | 0.00 | 5.3 | 14.5 | 1.75 | .279 | 8.44 | 9.56 | |
| 9 |  | Reds | 13 | 1901 | 2 | .500 | 1 | 1 | 0.00 | 11 | 0 | 0 | 18.0 | 18 | 0 | 0 | 9 | 3 | 37 | 0 | 5.50 | 4.50 | 1.22 | 0.00 | 29.7 | 24.3 | 1.50 | 1.286 | 6.50 | 9.00 | |
| 10 |  | Pirates | 12 | 1901 | 2 | .500 | 1 | 1 | 0.00 | 10 | 0 | 0 | 17.0 | 19 | 0 | 0 | 6 | 3 | 36 | 2 | 5.29 | 3.18 | 1.67 | 0.00 | 27.8 | 16.7 | 1.47 | 1.118 | 6.35 | 10.06 | |
| 11 |  | Giants | 10 | 1901 | 2 | .500 | 1 | 1 | 0.00 | 12 | 0 | 0 | 17.0 | 19 | 0 | 0 | 3 | 1 | 73 | 1 | 6.35 | 1.59 | 4.00 | 0.00 | 16.4 | 4.1 | 1.29 | .333 | 5.29 | 10.06 | |
| 12 |  | Superbas | 9 | 1901 | 2 | 1.000 | 2 | 0 | 0.00 | 10 | 0 | 0 | 18.0 | 16 | 0 | 1 | 7 | 1 | 77 | 0 | 5.00 | 3.50 | 1.43 | 0.50 | 13.0 | 9.1 | 1.28 | .259 | 4.50 | 8.00 | |
| 13 |  | Senators | 6 | 1901 | 2 | 1.000 | 2 | 0 | 0.00 | 4 | 0 | 0 | 18.0 | 18 | 0 | 0 | 5 | 0 | 73 | 0 | 2.00 | 2.50 | 0.80 | 0.00 | 5.5 | 6.8 | 1.28 | .281 | 3.00 | 9.00 | |
| 14 |  | White Sox | 5 | 1901 | 2 | 1.000 | 2 | 0 | 0.00 | 2 | 0 | 0 | 18.0 | 12 | 0 | 1 | 6 | 0 | 69 | 2 | 1.00 | 3.00 | 0.33 | 0.50 | 2.9 | 8.7 | 1.00 | .183 | 2.50 | 6.00 | |
| 15 |  | Beaneaters | 5 | 1901 | 2 | .500 | 1 | 1 | 0.00 | 11 | 1 | 0 | 17.0 | 13 | 0 | 1 | 2 | 0 | 67 | 0 | 5.82 | 1.06 | 5.50 | 0.53 | 16.4 | 3.0 | 0.88 | .226 | 2.65 | 6.88 |
StatMuse has team, game-level data for runs allowed going back to the 1901 season.
Some of the information used here was obtained free of charge from Retrosheet.
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