13 teams are tied for the most wins with a run differential below 0 in a season, with 1 win. The first three are the New York Yankees in 1971, the Boston Braves in 1942 and the Boston Red Sox in 1941.
| TEAM | W | DIFF | SEASON | L | W% | G | AB | R | H | 2B | 3B | HR | RBI | BB | HBP | SO | SB | CS | PA | TB | XBH | SH | SF | IBB | GIDP | AVG | OBP | SLG | OPS | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | Yankees | 1 | -245 | 1971 | 80 | .012 | 81 | 2,699 | 218 | 606 | 75 | 15 | 45 | 207 | 259 | 19 | 369 | 28 | 24 | 3,020 | 846 | 135 | 23 | 20 | 13 | 69 | .225 | .295 | .313 | .608 |
| 2 |  | Braves | 1 | -294 | 1942 | 89 | .011 | 90 | 3,037 | 228 | 661 | 108 | 7 | 32 | 213 | 231 | 8 | 313 | 21 | 3,315 | 879 | 147 | 39 | 79 | .218 | .275 | .289 | .564 | |||
| 3 |  | Red Sox | 1 | -224 | 1941 | 70 | .014 | 71 | 2,444 | 237 | 596 | 107 | 20 | 34 | 223 | 268 | 5 | 284 | 19 | 2,744 | 845 | 161 | 27 | 53 | .244 | .320 | .346 | .666 | |||
| 4 |  | Cardinals | 1 | -336 | 1907 | 101 | .010 | 102 | 3,342 | 191 | 714 | 64 | 29 | 9 | 194 | 19 | 59 | 3,487 | 863 | 102 | 88 | .214 | .261 | .258 | .519 | ||||||
| 5 |  | Perfectos | 1 | -266 | 1899 | 67 | .015 | 68 | 229 | ||||||||||||||||||||||
| 6 |  | Giants | 1 | -194 | 1897 | 48 | .020 | 49 | 184 | ||||||||||||||||||||||
| 7 | Spiders | 1 | -228 | 1897 | 60 | .016 | 61 | 205 | |||||||||||||||||||||||
| 8 |  | Grooms | 1 | -344 | 1894 | 61 | .016 | 63 | 296 | ||||||||||||||||||||||
| 9 | | Giants | 1 | -293 | 1892 | 79 | .013 | 80 | 306 | ||||||||||||||||||||||
| 10 | Colonels | 1 | -374 | 1892 | 89 | .011 | 90 | 259 | |||||||||||||||||||||||
| 11 |  | Senators | 1 | -511 | 1891 | 91 | .011 | 92 | 338 | ||||||||||||||||||||||
| 12 | Solons | 1 | -190 | 1890 | 55 | .018 | 56 | 195 | |||||||||||||||||||||||
| 13 |  | Athletics | 1 | -289 | 1887 | 69 | .014 | 70 | 314 | ||||||||||||||||||||||
| 14 | Maroons | 1 | -72 | 1884 | 19 | .050 | 20 | 65 | |||||||||||||||||||||||
| 15 |  | Quakers | 1 | -509 | 1883 | 81 | .012 | 82 | 320 |
Some of the information used here was obtained free of charge from Retrosheet.
Yankees 
Rays 
Blue Jays 
Red Sox 
Orioles 
CIN 
ATH 
Tigers 
Guardians 
Astros 
Mariners 
Phillies 
Mets 
Cubs 
Brewers 
Dodgers 
Giants 
MIA 
PIT 
AZ 
CWS 
LAA 
WSH 
SDP 
TEX 
