5 teams are tied for the most games pitched when allowing exactly 0 runs in a month, with 10 games. The first three are the New York Mets in September 1969, the Los Angeles Dodgers in September 1965 and the New York Giants in September 1916.
| TEAM | G | R | MONTH | 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 |  | Mets | 10 | 0 | September 1969 | 1.000 | 10 | 0 | 0.00 | 59 | 7 | 3 | 90.0 | 46 | 0 | 0 | 27 | 0 | 1 | 323 | 2 | 5.90 | 2.70 | 2.19 | 0.00 | 18.3 | 8.4 | 0.81 | .194 | 0.00 | 4.60 |
| 2 |  | Dodgers | 10 | 0 | September 1965 | 1.000 | 10 | 0 | 0.00 | 70 | 6 | 4 | 90.0 | 44 | 0 | 0 | 15 | 1 | 0 | 318 | 2 | 7.00 | 1.50 | 4.67 | 0.00 | 22.0 | 4.7 | 0.66 | .190 | 0.00 | 4.40 |
| 3 |  | Giants | 10 | 0 | September 1916 | 1.000 | 10 | 0 | 0.00 | 38 | 10 | 0 | 88.0 | 36 | 0 | 0 | 15 | 1 | 311 | 1 | 3.89 | 1.53 | 2.53 | 0.00 | 12.2 | 4.8 | 0.58 | .140 | 0.00 | 3.68 | |
| 4 |  | Naps | 10 | 0 | September 1906 | 1.000 | 10 | 0 | 0.00 | 52 | 10 | 0 | 90.0 | 41 | 0 | 0 | 11 | 3 | 321 | 1 | 5.20 | 1.10 | 4.73 | 0.00 | 16.2 | 3.4 | 0.58 | .161 | 0.00 | 4.10 | |
| 5 |  | White Sox | 10 | 0 | August 1906 | 1.000 | 9 | 0 | 0.00 | 45 | 10 | 0 | 88.0 | 41 | 0 | 0 | 12 | 1 | 305 | 0 | 4.60 | 1.23 | 3.75 | 0.00 | 14.8 | 3.9 | 0.60 | .166 | 0.00 | 4.19 | |
| 6 | | White Sox | 10 | 0 | September 1904 | 1.000 | 10 | 0 | 0.00 | 51 | 10 | 0 | 90.0 | 42 | 0 | 0 | 18 | 2 | 325 | 0 | 5.10 | 1.80 | 2.83 | 0.00 | 15.7 | 5.5 | 0.67 | .165 | 0.00 | 4.20 | |
| 7 |  | Cubs | 9 | 0 | May 1969 | 1.000 | 9 | 0 | 0.00 | 74 | 8 | 0 | 81.0 | 39 | 0 | 0 | 20 | 0 | 1 | 288 | 0 | 8.22 | 2.22 | 3.70 | 0.00 | 25.7 | 6.9 | 0.73 | .201 | 0.00 | 4.33 |
| 8 |  | Yankees | 9 | 0 | June 1952 | 1.000 | 9 | 0 | 0.00 | 55 | 8 | 1 | 81.0 | 34 | 0 | 0 | 34 | 0 | 305 | 0 | 6.11 | 3.78 | 1.62 | 0.00 | 18.0 | 11.1 | 0.84 | .157 | 0.00 | 3.78 | |
| 9 |  | Red Sox | 9 | 0 | July 1918 | 1.000 | 9 | 0 | 0.00 | 27 | 9 | 0 | 78.0 | 44 | 0 | 0 | 12 | 1 | 279 | 0 | 3.12 | 1.38 | 2.25 | 0.00 | 9.7 | 4.3 | 0.72 | .184 | 0.00 | 5.08 | |
| 10 | | Red Sox | 9 | 0 | June 1918 | 1.000 | 9 | 0 | 0.00 | 31 | 8 | 0 | 82.0 | 32 | 0 | 0 | 29 | 3 | 301 | 0 | 3.40 | 3.18 | 1.07 | 0.00 | 10.3 | 9.6 | 0.74 | .134 | 0.00 | 3.51 | |
| 11 |  | Reds | 9 | 0 | May 1914 | 1.000 | 9 | 0 | 0.00 | 40 | 8 | 1 | 81.0 | 43 | 0 | 0 | 30 | 3 | 309 | 1 | 4.44 | 3.33 | 1.33 | 0.00 | 12.9 | 9.7 | 0.90 | .182 | 0.00 | 4.78 | |
| 12 |  | Cubs | 9 | 0 | August 1909 | 1.000 | 9 | 0 | 0.00 | 43 | 9 | 0 | 83.0 | 40 | 0 | 0 | 11 | 2 | 290 | 1 | 4.66 | 1.19 | 3.91 | 0.00 | 14.8 | 3.8 | 0.61 | .171 | 0.00 | 4.34 | |
| 13 | | White Sox | 9 | 0 | September 1908 | 1.000 | 9 | 0 | 0.00 | 51 | 8 | 1 | 81.0 | 42 | 0 | 0 | 10 | 2 | 287 | 1 | 5.67 | 1.11 | 5.10 | 0.00 | 17.8 | 3.5 | 0.64 | .188 | 0.00 | 4.67 | |
| 14 | | Cubs | 9 | 0 | September 1908 | 1.000 | 8 | 0 | 0.00 | 50 | 9 | 0 | 82.0 | 42 | 0 | 0 | 14 | 1 | 296 | 1 | 5.49 | 1.54 | 3.57 | 0.00 | 16.9 | 4.7 | 0.68 | .182 | 0.00 | 4.61 | |
| 15 |  | Cubs | 9 | 0 | August 1907 | 1.000 | 9 | 0 | 0.00 | 35 | 8 | 1 | 77.0 | 31 | 0 | 0 | 13 | 1 | 265 | 0 | 4.09 | 1.52 | 2.69 | 0.00 | 13.2 | 4.9 | 0.57 | .144 | 0.00 | 3.62 | |
| 16 |  | Cubs | 9 | 0 | August 1906 | 1.000 | 9 | 0 | 0.00 | 28 | 7 | 1 | 70.0 | 44 | 0 | 13 | 2 | 0 | 3.60 | 1.67 | 2.15 | 0.00 | 5.1 | 0.81 | .209 | 0.00 | 5.66 | ||||
| 17 |  | Browns | 9 | 0 | September 1904 | 1.000 | 8 | 0 | 0.00 | 44 | 9 | 0 | 82.0 | 50 | 0 | 0 | 10 | 0 | 302 | 0 | 4.83 | 1.10 | 4.40 | 0.00 | 14.6 | 3.3 | 0.73 | .202 | 0.00 | 5.49 | |
| 18 |  | Giants | 8 | 0 | May 2015 | 1.000 | 8 | 0 | 0.00 | 58 | 0 | 3 | 72.0 | 38 | 0 | 0 | 20 | 0 | 0 | 274 | 4 | 7.25 | 2.50 | 2.90 | 0.00 | 21.2 | 7.3 | 0.81 | .194 | 0.00 | 4.75 |
| 19 | | Dodgers | 8 | 0 | August 2013 | 1.000 | 8 | 0 | 0.00 | 71 | 0 | 3 | 72.0 | 38 | 0 | 0 | 16 | 1 | 1 | 264 | 2 | 8.88 | 2.00 | 4.44 | 0.00 | 26.9 | 6.1 | 0.75 | .216 | 0.00 | 4.75 |
| 20 | | Dodgers | 8 | 0 | September 1988 | 1.000 | 8 | 0 | 0.00 | 47 | 6 | 2 | 72.0 | 39 | 0 | 0 | 13 | 0 | 2 | 262 | 0 | 5.88 | 1.63 | 3.62 | 0.00 | 17.9 | 5.0 | 0.72 | .193 | 0.00 | 4.88 |
| 21 |  | Orioles | 8 | 0 | September 1974 | 1.000 | 8 | 0 | 0.00 | 41 | 7 | 0 | 80.0 | 34 | 0 | 0 | 14 | 0 | 2 | 278 | 2 | 4.61 | 1.58 | 2.93 | 0.00 | 14.7 | 5.0 | 0.60 | .152 | 0.00 | 3.83 |
| 22 | | Giants | 8 | 0 | August 1968 | 1.000 | 8 | 0 | 0.00 | 60 | 7 | 1 | 80.0 | 39 | 0 | 0 | 11 | 0 | 3 | 286 | 2 | 6.75 | 1.24 | 5.45 | 0.00 | 21.0 | 3.8 | 0.63 | .181 | 0.00 | 4.39 |
| 23 | | Dodgers | 8 | 0 | May 1968 | 1.000 | 8 | 0 | 0.00 | 55 | 7 | 1 | 75.0 | 36 | 0 | 0 | 19 | 1 | 6 | 279 | 1 | 6.60 | 2.28 | 2.89 | 0.00 | 19.7 | 6.8 | 0.73 | .176 | 0.00 | 4.32 |
| 24 |  | Indians | 8 | 0 | May 1968 | 1.000 | 8 | 0 | 0.00 | 74 | 8 | 0 | 75.0 | 25 | 0 | 0 | 19 | 3 | 0 | 266 | 1 | 8.88 | 2.28 | 3.89 | 0.00 | 27.8 | 7.1 | 0.59 | .147 | 0.00 | 3.00 |
| 25 | | White Sox | 8 | 0 | September 1967 | 1.000 | 8 | 0 | 0.00 | 44 | 6 | 1 | 81.0 | 33 | 0 | 0 | 18 | 3 | 1 | 287 | 0 | 4.89 | 2.00 | 2.44 | 0.00 | 15.3 | 6.3 | 0.63 | .149 | 0.00 | 3.67 |
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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| NL East | W | L | PCT | GB |
|---|---|---|---|---|
45 | 24 | .652 | ||
37 | 32 | .536 | 8.0 | |
35 | 35 | .500 | 10.5 | |
35 | 35 | .500 | 10.5 | |
31 | 38 | .449 | 14.0 | |
| NL Central | W | L | PCT | GB |
42 | 25 | .627 | ||
37 | 30 | .552 | 5.0 | |
36 | 34 | .514 | 7.5 | |
35 | 35 | .500 | 8.5 | |
32 | 36 | .471 | 10.5 | |
| NL West | W | L | PCT | GB |
44 | 26 | .629 | ||
35 | 33 | .515 | 8.0 | |
35 | 34 | .507 | 8.5 | |
28 | 42 | .400 | 16.0 | |
26 | 44 | .371 | 18.0 |
Brewers
Cardinals
Cubs
Pirates
Dodgers
Padres
Diamondbacks
Giants
Rockies| AL East | W | L | PCT | GB |
|---|---|---|---|---|
40 | 26 | .606 | ||
41 | 27 | .603 | ||
34 | 36 | .486 | 8.0 | |
34 | 37 | .479 | 8.5 | |
28 | 39 | .418 | 12.5 | |
| AL Central | W | L | PCT | GB |
37 | 31 | .544 | ||
38 | 33 | .535 | 0.5 | |
32 | 39 | .451 | 6.5 | |
29 | 41 | .414 | 9.0 | |
28 | 42 | .400 | 10.0 | |
| AL West | W | L | PCT | GB |
37 | 34 | .521 | ||
34 | 35 | .493 | 2.0 | |
34 | 35 | .493 | 2.0 | |
32 | 39 | .451 | 5.0 | |
28 | 42 | .400 | 8.5 |
Rays
Yankees
Blue Jays
Orioles
Red Sox
White Sox
Guardians
Twins
Tigers
Royals
Mariners
Athletics
Rangers
Astros
Angels