RBI stands for “Runs Batted In,” and it’s a common statistic used in baseball to measure a batter’s effectiveness in driving in runs. Essentially, an RBI is credited to a batter when his at-bat results in a run being scored by his team.

The most common way for a batter to earn an RBI is by collecting a hit that allows one or more runners on base to score. However, a batter can also earn an RBI in a few other ways, such as a sacrifice fly or a groundout that scores a runner from third base.

As an example, let’s say there are runners on second and third base with one out. If the batter hits a single that scores both runners, he would be credited with two RBIs.

RBIs can be a valuable statistic for evaluating a batter’s overall offensive performance, as it shows how effective they are in bringing runners home and producing runs for their team. It’s also worth noting that the RBI is often used in conjunction with other offensive statistics, such as batting average and on-base percentage, to get a more complete picture of a player’s performance.

Hank Aaron collected 2297 RBI in his career, more than any other batter in MLB history.