The Boston Americans had their best record in a season in the month of June in 1901, with a record of 20-5.
| TEAM | REC | SEASON | W% | G | W | L | AB | R | H | 2B | 3B | HR | RBI | BB | HBP | SO | SB | CS | PA | TB | XBH | SH | SF | IBB | GIDP | AVG | OBP | SLG | OPS | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | Americans | 20-5 | 1901 | .800 | 25 | 20 | 5 | 877 | 167 | 263 | 39 | 23 | 12 | 148 | 76 | 16 | -8 | 36 | 984 | 384 | 74 | 15 | .300 | .366 | .438 | .804 | ||||
| 2 |  | Red Sox | 20-6 | 2022 | .769 | 26 | 20 | 6 | 894 | 129 | 239 | 60 | 2 | 24 | 123 | 94 | 17 | 195 | 19 | 3 | 1,013 | 375 | 86 | 1 | 7 | 9 | 19 | .267 | .346 | .419 | .765 |
| 3 |  | Red Sox | 18-6 | 1948 | .750 | 24 | 18 | 6 | 851 | 156 | 237 | 46 | 3 | 26 | 148 | 131 | 4 | 82 | 8 | 993 | 367 | 75 | 7 | 15 | .278 | .377 | .431 | .809 | |||
| 4 |  | Red Sox | 19-7 | 1942 | .731 | 26 | 19 | 7 | 876 | 114 | 240 | 50 | 7 | 19 | 110 | 101 | 2 | 72 | 11 | 994 | 361 | 76 | 15 | 17 | .274 | .350 | .412 | .762 | |||
| 5 | | Americans | 19-7 | 1903 | .731 | 26 | 19 | 7 | 907 | 136 | 258 | 41 | 20 | 7 | 121 | 50 | 2 | 37 | 21 | 999 | 360 | 68 | 40 | .284 | .323 | .397 | .720 | ||||
| 6 | | Red Sox | 21-8 | 1912 | .724 | 29 | 21 | 8 | 1,018 | 166 | 304 | 52 | 23 | 8 | 139 | 78 | 10 | 42 | 1,151 | 426 | 83 | 45 | .299 | .354 | .418 | .773 | |||||
| 7 |  | Red Sox | 18-7 | 1978 | .720 | 25 | 18 | 7 | 861 | 140 | 245 | 52 | 9 | 34 | 130 | 99 | 0 | 136 | 15 | 10 | 980 | 417 | 95 | 6 | 14 | 13 | 30 | .285 | .353 | .484 | .838 |
| 8 |  | Red Sox | 20-8 | 1979 | .714 | 28 | 20 | 8 | 996 | 177 | 293 | 69 | 6 | 44 | 172 | 98 | 8 | 129 | 7 | 12 | 1,131 | 506 | 119 | 13 | 16 | 9 | 17 | .294 | .357 | .508 | .865 |
| 9 | | Red Sox | 19-8 | 1915 | .704 | 28 | 19 | 8 | 910 | 138 | 260 | 30 | 15 | 5 | 93 | 9 | 65 | 28 | 1,062 | 335 | 50 | 50 | .286 | .358 | .368 | .726 | |||||
| 10 | | Red Sox | 18-8 | 2009 | .692 | 26 | 18 | 8 | 876 | 138 | 228 | 44 | 7 | 31 | 130 | 113 | 10 | 178 | 24 | 6 | 1,011 | 379 | 82 | 3 | 9 | 6 | 20 | .260 | .348 | .433 | .781 |
| 11 | | Red Sox | 18-8 | 1913 | .692 | 26 | 18 | 8 | 883 | 128 | 240 | 36 | 29 | 0 | 104 | 6 | 85 | 20 | 1,034 | 334 | 65 | 41 | .272 | .352 | .378 | .731 | |||||
| 12 | | Red Sox | 20-9 | 1990 | .690 | 29 | 20 | 9 | 968 | 131 | 279 | 59 | 8 | 19 | 125 | 111 | 5 | 121 | 8 | 13 | 1,105 | 411 | 86 | 9 | 12 | 11 | 36 | .288 | .360 | .425 | .785 |
| 13 |  | Red Sox | 20-9 | 1955 | .690 | 29 | 20 | 9 | 997 | 163 | 280 | 51 | 5 | 39 | 155 | 120 | 3 | 144 | 7 | 4 | 1,140 | 458 | 95 | 12 | 8 | 9 | 25 | .281 | .357 | .459 | .817 |
| 14 | | Red Sox | 18-9 | 2010 | .667 | 27 | 18 | 9 | 946 | 166 | 282 | 77 | 6 | 36 | 158 | 106 | 12 | 194 | 15 | 4 | 1,081 | 479 | 119 | 6 | 11 | 8 | 23 | .298 | .372 | .506 | .878 |
| 15 | | Red Sox | 16-8 | 1945 | .667 | 26 | 16 | 8 | 919 | 116 | 247 | 34 | 6 | 13 | 106 | 101 | 5 | 90 | 16 | 1,041 | 332 | 53 | 16 | 19 | .269 | .344 | .361 | .706 | |||
| 16 | | Red Sox | 17-9 | 2006 | .654 | 26 | 17 | 9 | 929 | 146 | 278 | 53 | 1 | 32 | 138 | 100 | 10 | 154 | 6 | 4 | 1,051 | 429 | 86 | 4 | 8 | 11 | 31 | .299 | .371 | .462 | .832 |
| 17 | | Red Sox | 17-9 | 2005 | .654 | 26 | 17 | 9 | 918 | 156 | 268 | 72 | 6 | 36 | 154 | 86 | 8 | 186 | 6 | 0 | 1,026 | 460 | 114 | 2 | 12 | 7 | 21 | .292 | .354 | .501 | .855 |
| 18 | | Red Sox | 18-10 | 2021 | .643 | 28 | 18 | 10 | 945 | 141 | 245 | 54 | 5 | 33 | 136 | 84 | 14 | 240 | 8 | 6 | 1,057 | 408 | 92 | 2 | 12 | 2 | 12 | .259 | .325 | .432 | .757 |
| 19 | | Red Sox | 18-10 | 1946 | .643 | 30 | 18 | 10 | 1,034 | 179 | 292 | 55 | 10 | 31 | 167 | 126 | 2 | 119 | 9 | 1,178 | 460 | 96 | 16 | 34 | .282 | .361 | .445 | .806 | |||
| 20 | | Red Sox | 18-10 | 1944 | .643 | 28 | 18 | 10 | 938 | 132 | 243 | 45 | 11 | 14 | 125 | 92 | 5 | 70 | 16 | 1,060 | 352 | 70 | 25 | 17 | .259 | .329 | .375 | .704 | |||
| 21 | | Red Sox | 16-9 | 2011 | .640 | 25 | 16 | 9 | 889 | 152 | 259 | 58 | 8 | 29 | 149 | 97 | 11 | 157 | 12 | 6 | 1,008 | 420 | 95 | 4 | 7 | 11 | 28 | .291 | .366 | .472 | .838 |
| 22 | | Red Sox | 17-10 | 2018 | .630 | 27 | 17 | 10 | 934 | 135 | 249 | 47 | 3 | 38 | 128 | 89 | 11 | 213 | 25 | 4 | 1,041 | 416 | 88 | 0 | 7 | 6 | 20 | .267 | .335 | .445 | .781 |
| 23 | | Red Sox | 17-10 | 1998 | .630 | 27 | 17 | 10 | 943 | 156 | 270 | 63 | 5 | 30 | 148 | 95 | 8 | 178 | 13 | 6 | 1,061 | 433 | 98 | 7 | 8 | 5 | 32 | .286 | .354 | .459 | .813 |
| 24 | | Red Sox | 17-10 | 1986 | .630 | 27 | 17 | 10 | 911 | 118 | 243 | 47 | 5 | 21 | 114 | 86 | 11 | 132 | 6 | 4 | 1,032 | 363 | 73 | 13 | 11 | 9 | 24 | .267 | .334 | .398 | .732 |
| 25 | | Red Sox | 17-10 | 1985 | .630 | 27 | 17 | 10 | 907 | 137 | 271 | 54 | 3 | 18 | 128 | 88 | 6 | 117 | 11 | 8 | 1,017 | 385 | 75 | 7 | 9 | 12 | 30 | .299 | .361 | .424 | .786 |
Some of the information used here was obtained free of charge from Retrosheet.
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23rd
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| NL East | W | L | PCT | GB |
|---|---|---|---|---|
 Braves - y | 94 | 68 | .580 | |
 Phillies - w | 88 | 74 | .543 | 6.0 |
80 | 82 | .494 | 14.0 | |
77 | 85 | .475 | 17.0 | |
74 | 88 | .457 | 20.0 | |
| NL Central | W | L | PCT | GB |
 Brewers - y | 103 | 59 | .636 | |
 Cubs - w | 89 | 73 | .549 | 14.0 |
82 | 80 | .506 | 21.0 | |
77 | 85 | .475 | 26.0 | |
75 | 87 | .463 | 28.0 | |
| NL West | W | L | PCT | GB |
 Dodgers - y | 100 | 62 | .617 | |
 Padres - w | 91 | 71 | .562 | 9.0 |
86 | 76 | .531 | 14.0 | |
65 | 97 | .401 | 35.0 | |
58 | 104 | .358 | 42.0 |
Marlins
Nationals
Mets
Pirates
Cardinals
Reds
Diamondbacks
Giants
Rockies| AL East | W | L | PCT | GB |
|---|---|---|---|---|
 Rays - y | 98 | 64 | .605 | |
 Yankees - w | 93 | 68 | .578 | 4.5 |
 Red Sox - w | 87 | 75 | .537 | 11.0 |
79 | 82 | .491 | 18.5 | |
79 | 83 | .488 | 19.0 | |
| AL Central | W | L | PCT | GB |
 Guardians - y | 85 | 77 | .525 | |
 White Sox - w | 84 | 78 | .519 | 1.0 |
77 | 85 | .475 | 8.0 | |
76 | 86 | .469 | 9.0 | |
69 | 93 | .426 | 16.0 | |
| AL West | W | L | PCT | GB |
 Astros - y | 81 | 81 | .500 | |
80 | 82 | .494 | 1.0 | |
76 | 86 | .469 | 5.0 | |
64 | 98 | .395 | 17.0 | |
62 | 100 | .383 | 19.0 |
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Royals
Rangers
Mariners
Athletics
Angels