If you follow baseball box scores or a live scoreboard, you will see the abbreviation RBI next to almost every batter. It stands for Runs Batted In — a count of how many teammates (or the batter themselves) reach home plate as a direct result of what that batter does at the plate. For fans in Wellington and across New Zealand who are still learning the sport, the RBI is one of the quickest ways to see who is actually producing runs for their team. This guide explains what an RBI is, the exact situations that earn one, the cases that do not, and how the stat compares with other batting numbers.
Key Points
- RBI = Runs Batted In — runs that score because of a batter’s action at the plate.
- Earned on hits, home runs, sacrifice flies and bunts, infield outs, fielder’s choices and bases-loaded walks or hit-by-pitches.
- Not credited when the batter grounds into a double play or when a run scores only because of an error.
- Governed by MLB Rule 9.04 and decided by the official scorer.
- Became an official MLB statistic in 1920.
- Career leader: Hank Aaron, 2,297. Single-season record: Hack Wilson, 191 (1930).
What RBI stands for
RBI is short for “Runs Batted In”. A batter is credited with one RBI for each run that scores because of their turn at bat. If a batter hits a single that brings one runner home, that is one RBI. If they hit a grand slam — a home run with the bases loaded — they are credited with four, one for each runner plus themselves.
The stat has a long history: RBI only became an official Major League Baseball statistic in 1920, which is why record-keepers sometimes disagree about totals from the earliest years of the game. You will occasionally see the plural written as “RBIs” or simply “RBI”; both are common.
How an RBI is credited
The official rulebook (Major League Baseball Rule 9.04) sets out exactly when an official scorer awards a run batted in. A batter earns an RBI for every run that scores in these situations:
- A safe hit — a single, double, triple or home run that drives a runner (or the batter) home.
- A sacrifice fly — a fly ball caught for an out that is deep enough to let a runner tag up and score, usually from third base.
- A sacrifice bunt — a bunt that is an out but allows a run to score.
- An infield out or a fielder’s choice — the batter is put out (or a different runner is), but a run crosses the plate on the play. A “fielder’s choice” is when the defence chooses to make an out somewhere other than at first base.
- A bases-loaded walk, hit-by-pitch, interference or obstruction — with the bases full, forcing in the runner from third base counts as an RBI even though the batter never hit the ball. This is why understanding a base on balls, or what BB means in baseball, matters when reading a scorecard.
One less obvious case: if there are fewer than two outs and a fielder makes an error on a play where the runner from third would ordinarily have scored anyway, the batter is still credited with the RBI.
When a batter does not get an RBI
The rule also lists situations where no RBI is awarded, and these trip up newcomers:
- Grounding into a double play. If the batter hits into a force double play (or a reverse-force double play), the official scorer does not credit an RBI, even if a run scores on the play.
- A run that scores because of an error. If a run only crosses the plate because a fielder misplayed the ball, the batter is not credited — the run is unearned rather than “batted in”.
- Scorer’s judgement. When a fielder holds the ball or throws to the wrong base and a run trickles home, the official scorer decides whether the batter really drove the run in or whether it scored on the defence’s mistake.
Because the RBI depends on runners already being on base, it is partly a team stat: a great hitter batting with empty bases cannot rack up RBIs no matter how well they hit. That context matters when you use the number to judge a player.
RBI compared with other batting stats
RBI is only one lens on offence. It pairs well with, but should not replace, other measures:
- Batting average measures how often a hitter gets a hit (hits divided by at-bats). It says nothing about runs driven in.
- On-base percentage (OBP) tracks how often a player reaches base by any means, including walks.
- OPS combines on-base ability and power into a single figure; our explainer on what OPS is in baseball breaks it down.
Analysts today often prefer stats that isolate an individual’s contribution, because RBI totals rise and fall with how many runners a batter finds on base. Even so, RBI remains one of the classic “Triple Crown” categories and an easy, meaningful number for casual fans. If you are new to the vocabulary, the site’s baseball terms glossary and guide to how to play baseball are good companions to this article.
Players known for driving in runs
A handful of hitters stand out for career run production. According to Baseball-Reference, Hank Aaron leads all of Major League history with 2,297 RBI, followed by Albert Pujols, who retired in 2022 with 2,218. Babe Ruth (2,214) and Alex Rodriguez (2,086) round out the top of the list. The single-season record has stood for nearly a century: Hack Wilson drove in 191 runs for the Chicago Cubs in 1930.
Modern power hitters continue to chase big RBI seasons — our profile of Shohei Ohtani covers one of today’s most productive bats. And if you want to drive in more runs yourself, the club’s top hitting tips are a practical next read.
All-Time RBI Leaders
| Rank | Player | Career RBI | Final MLB season |
|---|---|---|---|
| 1 | Hank Aaron | 2,297 | 1976 |
| 2 | Albert Pujols | 2,218 | 2022 |
| 3 | Babe Ruth | 2,214 | 1935 |
| 4 | Alex Rodriguez | 2,086 | 2016 |
| 5 | Cap Anson | 2,075 | 1897 |
Reference sources
Frequently asked questions
What does RBI stand for in baseball?
RBI stands for “Runs Batted In”. It counts the number of runs that score as a direct result of a batter’s action at the plate, such as a hit, a sacrifice or a bases-loaded walk.
Does a home run count as an RBI?
Yes. A batter is credited with an RBI for every run scored on their home run, including themselves. A solo home run is one RBI, while a grand slam with the bases loaded is worth four.
Can you get an RBI on a walk?
Only when the bases are loaded. A base on balls, hit-by-pitch, interference or obstruction with runners on every base forces in the runner from third, and that run is credited to the batter as an RBI. A walk with the bases not loaded does not produce one.
Why is a batter not always given an RBI when a run scores?
No RBI is awarded if the batter grounds into a double play, or if the run only scores because a fielder made an error. In some cases where a defender holds the ball or throws to the wrong base, the official scorer decides whether the run was genuinely batted in.
Who has the most career RBI in Major League Baseball?
Hank Aaron holds the career record with 2,297 RBI. Albert Pujols is second with 2,218, ahead of Babe Ruth and Alex Rodriguez. The single-season record is 191, set by Hack Wilson in 1930.
