The Toronto Blue Jays have allowed the most home runs by a team in the 1st inning this season, with 21 HR.
| TEAM | HR | SEASON | G | W% | W | L | SO | H | BB | HBP | IBB | K/BB | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | Blue Jays | 21 | 2025 | 68 | .509 | 148 | 143 | 77 | 74 | 18 | 2 | 0 | 4.28 |
| 2 |  | Red Sox | 17 | 2025 | 70 | .447 | 143 | 177 | 78 | 90 | 28 | 4 | 0 | 2.79 |
| 3 |  | Athletics | 17 | 2025 | 70 | .342 | 105 | 202 | 59 | 60 | 37 | 3 | 0 | 1.59 |
| 4 |  | Dodgers | 15 | 2025 | 69 | .562 | 172 | 134 | 63 | 64 | 40 | 2 | 0 | 1.58 |
| 5 |  | Rockies | 14 | 2025 | 66 | .187 | 59 | 257 | 56 | 100 | 21 | 2 | 0 | 2.67 |
| 6 |  | White Sox | 14 | 2025 | 68 | .292 | 93 | 225 | 57 | 81 | 30 | 8 | 0 | 1.90 |
| 7 |  | Angels | 13 | 2025 | 67 | .467 | 143 | 163 | 50 | 81 | 31 | 3 | 2 | 1.61 |
| 8 |  | Cardinals | 12 | 2025 | 68 | .503 | 149 | 147 | 53 | 77 | 18 | 0 | 0 | 2.94 |
| 9 |  | Orioles | 12 | 2025 | 66 | .376 | 114 | 189 | 69 | 80 | 25 | 2 | 0 | 2.76 |
| 10 |  | Marlins | 12 | 2025 | 66 | .342 | 96 | 185 | 70 | 69 | 20 | 1 | 0 | 3.50 |
| 11 |  | Cubs | 12 | 2025 | 68 | .584 | 170 | 121 | 71 | 71 | 22 | 1 | 0 | 3.23 |
| 12 |  | Nationals | 11 | 2025 | 67 | .450 | 131 | 160 | 65 | 67 | 28 | 0 | 0 | 2.32 |
| 13 |  | Brewers | 11 | 2025 | 69 | .488 | 143 | 150 | 75 | 66 | 29 | 3 | 0 | 2.59 |
| 14 |  | Rays | 10 | 2025 | 68 | .511 | 143 | 137 | 63 | 65 | 16 | 5 | 0 | 3.94 |
| 15 |  | Guardians | 10 | 2025 | 67 | .540 | 147 | 125 | 62 | 58 | 30 | 1 | 0 | 2.07 |
| 16 |  | Diamondbacks | 10 | 2025 | 68 | .452 | 140 | 170 | 67 | 80 | 29 | 4 | 0 | 2.31 |
| 17 |  | Braves | 9 | 2025 | 67 | .413 | 118 | 168 | 71 | 68 | 23 | 4 | 0 | 3.09 |
| 18 |  | Tigers | 9 | 2025 | 69 | .655 | 186 | 98 | 81 | 61 | 20 | 2 | 0 | 4.05 |
| 19 |  | Rangers | 9 | 2025 | 68 | .432 | 117 | 154 | 56 | 53 | 21 | 2 | 0 | 2.67 |
| 20 |  | Twins | 8 | 2025 | 67 | .503 | 144 | 142 | 65 | 64 | 24 | 1 | 0 | 2.71 |
| 21 |  | Mets | 8 | 2025 | 68 | .622 | 171 | 104 | 72 | 48 | 30 | 0 | 0 | 2.40 |
| 22 |  | Reds | 7 | 2025 | 69 | .487 | 134 | 141 | 64 | 44 | 27 | 5 | 0 | 2.37 |
| 23 |  | Phillies | 7 | 2025 | 68 | .527 | 148 | 133 | 78 | 60 | 20 | 2 | 0 | 3.90 |
| 24 |  | Padres | 7 | 2025 | 67 | .546 | 160 | 133 | 64 | 62 | 33 | 1 | 0 | 1.94 |
| 25 |  | Pirates | 6 | 2025 | 69 | .379 | 108 | 177 | 62 | 60 | 23 | 2 | 0 | 2.70 |
StatMuse has event-level data for home runs allowed going back to the 1974 season.
Some of the information used here was obtained free of charge from Retrosheet.
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