A double might get you some, for short

RBIS

Think of what a batter earns when they drive in multiple runners—this stat is often tracked in box scores. The abbreviation stands for "runs batted in," plural.

This clue plays on baseball terminology. "A double" refers to a two-base hit, which can drive in runs—earning the batter "RBIs" (runs batted in). The "for short" hints that the answer is an abbreviation, so instead of spelling out "runs batted in," you just use the initials.