I don't have anything for this season, but Michael Busch launched the most homers for the Cubs versus the Mariners in 2024, with 3 homers in his rookie season.
Interpreted as:
cubs player with most home runs against mariners this regular season| 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 |  | M. Busch | 3 | 2024 |  CHC | 3 | 12 | 3 | 6 | 1 | 0 | 4 | 0 | 0 | 3 | 0 | 0 | 12 | 16 | 4 | 0 | 0 | 0 | 0 | .500 | .500 | 1.333 | 1.833 |
| 2 | | M. Amaya | 1 | 2024 | CHC | 1 | 3 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 4 | 1 | 0 | 0 | 0 | 1 | .333 | .333 | 1.333 | 1.667 |
| 3 |  | S. Suzuki | 1 | 2024 | CHC | 3 | 12 | 2 | 4 | 1 | 0 | 1 | 0 | 0 | 5 | 0 | 1 | 12 | 8 | 2 | 0 | 0 | 0 | 0 | .333 | .333 | .667 | 1.000 |
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.
Cardinals 
Brewers 
Reds 
Pirates 
Mets 
Phillies 
Dodgers 
Giants 
Yankees 
Blue Jays 
Tigers 
Twins 
Astros 
Angels 
KCR 
ATH 
AZ 
CLE 
CWS 
WSH 
TEX 
COL 
BAL 
