Pete Alonso hit his most homers in a season before the All-Star Game in his rookie season in 2019, with 30 homers.
| NAME | HR | SEASON | TM | G | AB | R | H | 2B | 3B | RBI | BB | HBP | SO | SB | CS | PA | TB | XBH | SH | SF | IBB | GIDP | AVG | OBP | SLG | OPS | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | P. Alonso | 30 | 2019 |  NYM | 89 | 325 | 57 | 91 | 21 | 2 | 68 | 37 | 12 | 92 | 1 | 0 | 376 | 206 | 53 | 0 | 2 | 0 | 7 | .280 | .372 | .634 | 1.006 |
| 2 | | P. Alonso | 26 | 2023 | NYM | 82 | 304 | 50 | 64 | 7 | 1 | 61 | 33 | 11 | 74 | 3 | 0 | 348 | 151 | 34 | 0 | 0 | 0 | 10 | .211 | .310 | .497 | .807 |
| 3 | | P. Alonso | 24 | 2022 | NYM | 92 | 344 | 50 | 91 | 15 | 0 | 78 | 34 | 9 | 82 | 2 | 1 | 395 | 178 | 39 | 0 | 8 | 7 | 10 | .265 | .339 | .517 | .857 |
| 4 | | P. Alonso | 19 | 2024 | NYM | 95 | 366 | 53 | 88 | 21 | 0 | 51 | 37 | 6 | 85 | 2 | 0 | 411 | 166 | 40 | 0 | 2 | 3 | 10 | .240 | .319 | .454 | .772 |
| 5 | | P. Alonso | 17 | 2021 | NYM | 78 | 277 | 39 | 69 | 12 | 0 | 49 | 28 | 5 | 67 | 1 | 0 | 313 | 132 | 29 | 0 | 3 | 2 | 8 | .249 | .326 | .477 | .802 |
StatMuse has game-level data for home runs going back to the 1901 season.
Some of the information used here was obtained free of charge from Retrosheet.
Phillies 
Nationals 
Braves 
Marlins 
AZ 
CHC 
Reds 
Dodgers 
Padres 
Yankees 
Red Sox 
Tigers 
Guardians 
Mariners 
Athletics 
TEX 
MIN 
PIT 
BAL 
CWS 
KCR 
