4 teams are tied for the fewest wins with 10+ games played in a month, with 0 wins. The first three are the Toronto Blue Jays in June 1981, the Detroit Tigers in April 1920 and the Washington Senators in April 1904.
| TEAM | W | G | MONTH | L | W% | AB | R | H | 2B | 3B | HR | RBI | BB | HBP | SO | SB | CS | PA | TB | XBH | SH | SF | IBB | GIDP | AVG | OBP | SLG | OPS | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | Blue Jays | 0 | 10 | June 1981 | 10 | .000 | 338 | 22 | 77 | 7 | 2 | 6 | 21 | 20 | 0 | 56 | 5 | 6 | 361 | 106 | 15 | 2 | 1 | 0 | 8 | .228 | .270 | .314 | .584 |
| 2 |  | Tigers | 0 | 11 | April 1920 | 11 | .000 | 350 | 27 | 64 | 16 | 0 | 2 | 23 | 38 | 0 | 34 | 3 | 397 | 86 | 18 | 9 | .183 | .263 | .246 | .509 | ||||
| 3 |  | Senators | 0 | 11 | April 1904 | 10 | .000 | 343 | 21 | 66 | 9 | 5 | 1 | 16 | 23 | 8 | 8 | 381 | 88 | 15 | 7 | .192 | .259 | .257 | .516 | |||||
| 4 |  | Orioles | 0 | 13 | June 1882 | 13 | .000 | 30 | ||||||||||||||||||||||
| 5 |  | Orioles | 1 | 23 | April 1988 | 22 | .043 | 747 | 54 | 152 | 25 | 3 | 12 | 50 | 65 | 7 | 127 | 14 | 7 | 828 | 219 | 40 | 5 | 4 | 1 | 19 | .203 | .272 | .293 | .565 |
| 6 |  | Athletics | 1 | 13 | April 1951 | 12 | .077 | 425 | 39 | 90 | 14 | 1 | 6 | 34 | 63 | 5 | 59 | 1 | 1 | 499 | 124 | 21 | 6 | 15 | .212 | .320 | .292 | .612 | ||
| 7 |  | Cubs | 1 | 10 | April 1944 | 9 | .100 | 319 | 20 | 60 | 13 | 2 | 2 | 20 | 16 | 1 | 36 | 4 | 339 | 83 | 17 | 3 | 5 | .188 | .229 | .260 | .489 | |||
| 8 |  | Phillies | 1 | 11 | April 1938 | 10 | .091 | 393 | 47 | 106 | 17 | 1 | 4 | 43 | 40 | 0 | 52 | 2 | 434 | 137 | 22 | 1 | .270 | .337 | .349 | .686 | ||||
| 9 |  | Reds | 1 | 10 | April 1931 | 9 | .100 | 340 | 27 | 85 | 6 | 3 | 3 | 25 | 23 | 1 | 37 | 0 | 368 | 106 | 12 | 4 | .250 | .299 | .312 | .611 | ||||
| 10 |  | Superbas | 1 | 13 | April 1907 | 11 | .083 | 406 | 14 | 75 | 12 | 2 | 0 | 13 | 33 | 4 | 56 | 11 | 458 | 91 | 14 | 15 | .185 | .253 | .224 | .477 | ||||
| 11 | Spiders | 1 | 28 | September 1899 | 27 | .036 | 75 | |||||||||||||||||||||||
| 12 | Colonels | 1 | 11 | April 1896 | 10 | .091 | 35 | |||||||||||||||||||||||
| 13 |  | Giants | 1 | 11 | April 1896 | 10 | .091 | 55 | ||||||||||||||||||||||
| 14 |  | Orioles | 1 | 13 | April 1892 | 12 | .077 | 66 | ||||||||||||||||||||||
| 15 |  | Alleghenys | 1 | 28 | August 1890 | 27 | .036 | 113 | ||||||||||||||||||||||
| 16 | Colonels | 1 | 11 | October 1889 | 10 | .091 | 37 | |||||||||||||||||||||||
| 17 | Spiders | 1 | 10 | April 1887 | 9 | .100 | 68 | |||||||||||||||||||||||
| 18 | Cowboys | 1 | 12 | October 1886 | 9 | .100 | 27 | |||||||||||||||||||||||
| 19 | | Alleghenys | 1 | 10 | October 1884 | 8 | .111 | 35 | ||||||||||||||||||||||
| 20 | Hoosiers | 1 | 11 | October 1884 | 10 | .091 | 30 | |||||||||||||||||||||||
| 21 | Quicksteps | 1 | 10 | August 1884 | 9 | .100 | 16 | |||||||||||||||||||||||
| 22 | Cowboys | 1 | 22 | July 1884 | 20 | .048 | 87 | |||||||||||||||||||||||
| 23 | Reds | 1 | 15 | August 1877 | 14 | .067 | 70 | |||||||||||||||||||||||
| 24 | Reds | 1 | 11 | August 1876 | 10 | .091 | 20 | |||||||||||||||||||||||
| 25 | Reds | 1 | 13 | June 1876 | 12 | .077 | 68 | |||||||||||||||||||||||
Some of the information used here was obtained free of charge from Retrosheet.
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