There are many variables which can affect your score in the game.
The further the ball flies, more points will be posted.
Higher accuracy hits will award extra points as per below:
MISS - 0pts
BAD - 0pts
GOOD - 10pts
GREAT - 40pts
PERFECT - 80pts
CRITICAL - 120pts
[Home Run Score, Combo Score]
Successful home runs will awawrd 20 extra points.
If you manage to continue a streak of succesive home runs, additional 20 points will continue to stack.
[Scoreboard, Skill OBJ, Symbol, Pole Hit Bonuses]
Hitting one of these 'objects' found in each stadium will award bonus points.
Scoreboard - 100pts
Skill OBJ - 150pts
Symbol (Statues, Figurines) - 200pts
Pole (Foul-ball marker) - 250pts
["Cycling" Home Runs]
Scoring home runs in each direction (left, center, right fields), will result in a "Cycling" home run.
Cycling Home Runs award 300 extra points.
["Announced" Home Runs]
During matches, your batter will occasionally call a shot in one direction (L, C, R), once the gauge fills up.
Scoring a home run in the same direction as the called shot will result in a successful "Announced" home run.
Announced Home Runs award 500 extra points.
Your batter's announced home run gauge will fill faster with higher accuracy / distance shots.
Many equipped cards (batters, gears, skills) have bonus effects that grant additional score when you batter performs a specific action within the match.
Each of these bonuses are explained if you tap on the icon under each card's description.