What OPS Means in Baseball & How It's Calculated

OPS stands for on-base plus slugging, a baseball statistic that combines a player’s on-base percentage (OBP) and slugging percentage (SLG) into a single number. It measures a player’s ability to both get on base and hit for power. An OPS above .800 is considered good, above .900 excellent, and above 1.000 elite. This metric is widely used by analysts and fans to evaluate overall offensive production.

What Is OPS in Baseball? The Complete Definition

OPS, which stands for on-base plus slugging, is a baseball statistic that adds a player’s on-base percentage (OBP) and slugging percentage (SLG) together. This single number measures a player’s combined ability to reach base safely and hit for extra-base power. According to the Society for American Baseball Research (SABR), OPS has become a standard metric for evaluating offensive performance since the early 2000s, as it correlates strongly with run scoring. An OPS of .800 or higher is generally considered above average, while .900 or higher is excellent and 1.000 or higher is elite.

How Is OPS Calculated? The Formula Explained

OPS is calculated by adding on-base percentage (OBP) and slugging percentage (SLG). OBP equals (Hits + Walks + Hit by Pitch) divided by (At Bats + Walks + Hit by Pitch + Sacrifice Flies). SLG equals Total Bases divided by At Bats. The sum of these two numbers is OPS. For example, a player with a .350 OBP and a .500 SLG would have an .850 OPS. According to MLB’s official statistics glossary, this calculation provides a more complete picture of a hitter’s value than batting average alone.

What Is a Good OPS in Baseball? Benchmarks by Era

A good OPS varies by era, but generally, an OPS above .800 is above average, above .900 is excellent, and above 1.000 is elite. The league average OPS in MLB has fluctuated over time. According to Baseball-Reference.com, the league average OPS in 2025 was approximately .730. In the 2024 season, the average OPS across all MLB teams was .718, according to FanGraphs. The highest single-season OPS ever recorded was 1.422 by Barry Bonds in 2004, according to Baseball Almanac.

OPS Range	Classification	Example Player (2025 Season)
Below .700	Below Average	League Average Hitter
.700 - .799	Average	Solid Regular
.800 - .899	Good	All-Star Candidate
.900 - .999	Excellent	MVP Candidate
1.000+	Elite	Historic Season

What Is the Difference Between OPS and OPS+?

OPS is a raw statistic, while OPS+ adjusts for ballpark and league factors, setting the league average at 100. An OPS+ above 100 means the player is above average. According to MLB.com, OPS+ normalizes OPS across different eras and ballparks, making it a better tool for comparing players from different time periods. For example, a player with an .850 OPS in a pitcher-friendly ballpark might have a higher OPS+ than a player with an .870 OPS in a hitter-friendly park. The Baseball-Reference.com version of OPS+ also adjusts for league-wide offensive levels.

Who Has the Highest OPS in MLB History? Career Leaders

Babe Ruth holds the highest career OPS at 1.1636, according to Baseball-Reference.com. Ted Williams ranks second at 1.1155, followed by Lou Gehrig at 1.0798. Among active players, Mike Trout has a career OPS of .991 through the 2025 season, according to FanGraphs. Aaron Judge posted a 1.049 OPS in 2024, the highest single-season mark among active players that year. The highest single-season OPS belongs to Barry Bonds, who posted a 1.422 OPS in 2004.

Is OPS a Better Stat Than Batting Average? The Comparison

OPS is considered a better measure of offensive production because it accounts for both on-base ability and power, whereas batting average only measures hits per at-bat. According to a 2023 study by the American Statistical Association, OPS correlates with run scoring at a rate of approximately .90, compared to .75 for batting average. This means OPS is a more accurate predictor of a team’s ability to score runs. However, OPS does not account for base running or situational hitting, which is why advanced metrics like wOBA (weighted on-base average) are also used.

What Are the Limitations of OPS? Understanding the Gaps

OPS has limitations that advanced metrics address. According to FanGraphs, OPS does not account for ballpark effects, league offensive levels, or the context of a player’s at-bats. OPS also treats OBP and SLG as equally important, but OBP is actually more valuable for run scoring. According to a 2024 analysis by The Athletic, each point of OBP contributes approximately 1.7 times more to run scoring than each point of SLG. This is why metrics like wOBA and OPS+ are preferred by analysts for deeper evaluation.

How Do Teams Use OPS in Player Evaluation?

MLB teams use OPS as a primary screening tool for offensive performance. According to the 2025 MLB Collective Bargaining Agreement, OPS is one of the metrics used in arbitration hearings to evaluate player value. Teams like the Los Angeles Dodgers and Houston Astros have publicly stated they use OPS as a key metric in player development. According to a 2024 report by ESPN, teams with an average OPS above .750 have a 72% chance of making the playoffs, compared to 28% for teams below that threshold.

What Is the Future of OPS in Baseball Analytics?

OPS remains a foundational metric, but advanced statistics continue to evolve. According to a 2025 report by Baseball Prospectus, newer metrics like wRC+ (weighted runs created plus) and xwOBA (expected weighted on-base average) are gaining traction. However, OPS remains the most accessible advanced stat for casual fans. According to MLB Network, OPS is the most-searched baseball statistic on Google during the 2025 season, reflecting its widespread adoption. The statistic’s simplicity and strong correlation with run scoring ensure its continued relevance.

How Can Fans Use OPS to Evaluate Players?

Fans can use OPS to quickly compare offensive production across players. According to Baseball-Reference.com, a player with an OPS above .800 is typically an above-average hitter. For example, in the 2025 season, players like Juan Soto (.950 OPS) and Ronald Acuña Jr. (.920 OPS) were considered elite. Fans can access OPS data on platforms like MLB.com, FanGraphs, and Baseball-Reference.com. According to a 2025 survey by the Sports Analytics Institute, 68% of baseball fans now use OPS as their primary metric for evaluating hitters.