The Chicago White Sox had the fewest runs allowed per game pitched by a team in their first 5 games, with 3.8.
| TEAM | R/G | R | 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 |  | White Sox | 3.8 | 19 | 5 | .600 | 3 | 2 | 0.00 | 12 | 0 | 0 | 45.0 | 34 | 0 | 3 | 12 | 0 | 184 | 2 | 2.40 | 2.40 | 1.00 | 0.60 | 6.5 | 6.5 | 1.02 | .197 | 3.80 | 6.80 | |
| 2 |  | Senators | 4 | 20 | 5 | .800 | 4 | 1 | 0.00 | 12 | 0 | 0 | 45.0 | 40 | 0 | 2 | 11 | 1 | 188 | 0 | 2.40 | 2.20 | 1.09 | 0.40 | 6.4 | 5.9 | 1.13 | .235 | 4.00 | 8.00 | |
| 3 |  | Beaneaters | 4.4 | 22 | 5 | .600 | 3 | 2 | 0.00 | 20 | 1 | 0 | 44.0 | 39 | 0 | 1 | 12 | 0 | 188 | 2 | 4.09 | 2.45 | 1.67 | 0.20 | 10.6 | 6.4 | 1.16 | .245 | 4.50 | 7.98 | |
| 4 |  | Reds | 5.2 | 26 | 5 | .800 | 4 | 1 | 0.00 | 28 | 0 | 0 | 48.0 | 42 | 0 | 0 | 18 | 5 | 157 | 0 | 5.25 | 3.38 | 1.56 | 0.00 | 17.8 | 11.5 | 1.25 | .396 | 4.88 | 7.88 | |
| 5 |  | Superbas | 5.2 | 26 | 5 | .600 | 3 | 2 | 0.00 | 23 | 0 | 0 | 43.0 | 41 | 0 | 2 | 20 | 2 | 151 | 1 | 4.81 | 4.19 | 1.15 | 0.42 | 15.2 | 13.2 | 1.42 | .375 | 5.44 | 8.58 | |
| 6 |  | Athletics | 6 | 30 | 5 | .400 | 2 | 3 | 0.00 | 16 | 0 | 0 | 46.0 | 61 | 0 | 2 | 13 | 0 | 216 | 0 | 3.13 | 2.54 | 1.23 | 0.39 | 7.4 | 6.0 | 1.61 | .319 | 5.87 | 11.93 | |
| 7 |  | Giants | 6.2 | 31 | 5 | .400 | 2 | 3 | 0.00 | 20 | 0 | 0 | 42.0 | 47 | 0 | 0 | 11 | 1 | 142 | 2 | 4.29 | 2.36 | 1.82 | 0.00 | 14.1 | 7.7 | 1.38 | .427 | 6.64 | 10.07 | |
| 8 |  | Cardinals | 6.2 | 31 | 5 | .600 | 3 | 2 | 0.00 | -8 | 0 | 0 | 45.0 | 59 | 0 | 2 | 12 | 4 | 201 | 0 | -1.60 | 2.40 | -0.67 | 0.40 | -4.0 | 6.0 | 1.58 | .298 | 6.20 | 11.80 | |
| 9 |  | Phillies | 6.4 | 32 | 5 | .400 | 2 | 3 | 0.00 | 21 | 0 | 0 | 44.0 | 48 | 0 | 1 | 18 | 2 | 151 | 1 | 4.30 | 3.68 | 1.17 | 0.20 | 13.9 | 11.9 | 1.50 | .431 | 6.55 | 9.82 | |
| 10 |  | Blues | 7 | 35 | 5 | .400 | 2 | 3 | 0.00 | -9 | 0 | 0 | 42.0 | 58 | 0 | 0 | 21 | 1 | 205 | 4 | -1.93 | 4.50 | -0.43 | 0.00 | -4.4 | 10.2 | 1.88 | .302 | 7.50 | 12.43 | |
| 11 |  | Pirates | 7 | 35 | 5 | .600 | 3 | 2 | 0.00 | 10 | 0 | 1 | 44.0 | 57 | 0 | 1 | 11 | 4 | 127 | 2 | 2.05 | 2.25 | 0.91 | 0.20 | 7.9 | 8.7 | 1.55 | .554 | 7.16 | 11.66 | |
| 12 |  | Tigers | 8 | 40 | 5 | 1.000 | 5 | 0 | 0.00 | -3 | 0 | 0 | 45.0 | 59 | 0 | 2 | 19 | 3 | 83 | 1 | -0.60 | 3.80 | -0.16 | 0.40 | -3.6 | 22.9 | 1.73 | .919 | 8.00 | 11.80 | |
| 13 |  | Orphans | 9.6 | 48 | 5 | .200 | 1 | 4 | 0.00 | 16 | 0 | 0 | 45.2 | 62 | 0 | 3 | 20 | 6 | 169 | 1 | 3.15 | 3.94 | 0.80 | 0.59 | 9.5 | 11.8 | 1.80 | .476 | 9.46 | 12.22 | |
| 14 |  | Brewers | 9.8 | 49 | 5 | .000 | 0 | 5 | 0.00 | 20 | 0 | 0 | 41.2 | 70 | 0 | 0 | 19 | 5 | 123 | 4 | 4.32 | 4.10 | 1.05 | 0.00 | 16.3 | 15.4 | 2.14 | .886 | 10.58 | 15.12 | |
| 15 |  | Americans | 10 | 50 | 5 | .200 | 1 | 4 | 0.00 | 7 | 0 | 0 | 42.0 | 68 | 0 | 1 | 13 | 1 | 160 | 1 | 1.50 | 2.79 | 0.54 | 0.21 | 4.4 | 8.1 | 1.93 | .486 | 10.71 | 14.57 |
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.
Tigers 
Twins 
Guardians 
Royals 
White Sox 
HOU 
Yankees 
Rays 
Mariners 
Mets 
Phillies 
Cubs 
Cardinals 
Dodgers 
Padres 
CIN 
PIT 
BAL 
MIL 
AZ 
ATL 
TOR 
ATH 
