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Understanding LOB in Baseball: How Many Scoring Opportunities Are Wasted?

Understanding Left on Base (LOB) in Baseball

Baseball, like any sport, has its own set of jargon that may seem confusing to the uninitiated. One such term is LOB, which stands for “left on base” and refers to the number of baserunners that do not score in an inning.

In this article, we’ll explore the definition of LOB, examples of when it occurs, how it’s calculated, its importance, and how it’s sometimes misleading.

Definition of LOB

LOB refers to the number of baserunners who do not score in an inning. This includes runners who reached first base, second base, third base, or any combination of the three.

When a team cannot advance runners to home plate before the third out, the baserunners are left on base.

Examples of LOB

LOB most commonly occurs when a team has the opportunity to score with baserunners in scoring position, typically at second or third base with less than two outs. For example, if a batter hits a double but is stranded on second base when the inning ends, they are considered a stranded runner or part of the LOB statistic.

The situation becomes complicated when there are runners on base but the batter doesn’t hit, as in the case of a fielder’s choice play. In these instances, the runner is forced to advance to the next base as the fielder’s choice eliminates the option for a double play.

Although the runner is technically left on base when the inning ends, they’re not counted in the LOB total, as they would have been erased anyway by the fielder’s choice.

LOB is tracked over individual games as well as over the course of an entire season.

If a team consistently leaves runners on base, it will create a lower run differential than if they can convert their opportunities.

Calculation of LOB Percentage

LOB percentage or “strand rate” is the statistic that measures how often a pitcher is able to leave runners on base in scoring position. For example, a pitcher who strands 80% of runners in scoring position has an impressive strand rate.

A pitcher with a low strand rate might indicate that they’re allowing too many hits with runners in scoring position, or their fielders aren’t making plays. In contrast, a pitcher with a high strand rate could be considered lucky, as it’s unlikely to be sustained over time.

Importance of LOB

The ability to strand runners is a crucial component of pitching success, but it’s also important from a team perspective. LOB is tied to scoring runs, the fundamental goal of any baseball game.

If a team doesn’t capitalize on opportunities to score, they’re likely to lose games. LOB is also a valuable metric for evaluating hitters.

If a player frequently strands runners, it could indicate that they’re not a clutch performer or lack situational awareness. On the other hand, a player who consistently drives in runners with RBI hits will have a higher value to their team.

Misleading Aspect of LOB

LOB isn’t always an accurate measurement of a team’s offensive performance. In certain situations, a baserunner is erased from the LOB statistic because the inning ends.

For example, if a runner is on first base with two outs, but the next batter strikes out, the runner is technically left on base, but they’re erased by the inning’s conclusion.

Similarly, if a team scores a significant number of runs in one inning, they might leave more runners on base but still win the game.

It means the LOB statistic might not tell the entire story of how scoring occurs and could mask other critical aspects of a team’s performance.

Connection of LOB and Winning Games

One might presume that teams with low LOB percentages are more likely to win games, but research shows that isn’t necessarily the case. For example, in the past five seasons, playoff teams have had an average LOB of 7.2 per game, while non-playoff teams have had an average LOB of 7.1.

It indicates that left on base is only one indicator of winning games.

Other factors, such as defensive play, pitching, hitting with runners in scoring position, and base running, can impact the outcome of a contest.

2022 MLB Team LOB per game

LOB statistics in baseball fluctuate from game to game, inning to inning, and team to team. As of August 21, 2022, the top five teams ranked by the average number of LOB per game are:


San Francisco Giants – 6.98

2. Toronto Blue Jays – 6.75


New York Yankees – 6.74

4. Los Angeles Dodgers – 6.68


Milwaukee Brewers – 6.61

Teams often take a “small-ball” approach in games with little scoring and emphasize moving baserunners to scoring position with bunts, hit-and-runs, or stolen bases. Teams should find a balance and strive to take advantage of the numerous opportunities to score runs.

Role of Other Baseball Statistics

LOB often intersects with other baseball statistics that measure the outcomes or movements of players and teams. For example, putouts and double plays can reduce the number of baserunners left on base.

Effective base stealing could raise the percentage of opportunities to score. Understanding the connections between different statistics is critical in building a coherent picture of a game or a player’s performance.


LOB in baseball is a valuable metric for evaluating players and teams’ performances, but it’s far from being the only thing that determines victory. An understanding of the factors that go into scoring runs and winning games helps fans better appreciate the complexities of America’s pastime.

Left on base can also be a misleading statistic, highlighting some performance gaps while covering up others. Building a comprehensive picture of a team or player requires the use of multiple metrics, each of which offers an insight into a different aspect of their play.

Top Leaders in Men Left on Base

Left on Base (LOB) is a statistical measure that reveals how well a team or player converts scoring opportunities into runs. The LOB statistic has gained popularity in recent years as more people have come to appreciate its significance in the game of baseball.

In this article expansion, we’ll analyze the top leaders in Men Left on Base and explore some of the limitations of using this statistic to evaluate individual players’ performance.

Leaders in LOB

Francisco Lindor, the New York Mets shortstop, leads the league in Men Left on Base in the 2021-2022 season. As of August 21, 2022, Lindor has been left on base a staggering 254 times, with a Left on Base Percentage (LOB%) of 79.7%.

This statistic means that Lindor has reached base through a hit or a walk, but his teammates could not convert his presence on the bases into runs, and he was stranded at that base.

Pete Alonso, Lindor’s teammate on the Mets, comes in second place in the MLB, with a LOB count of 240, and a LOB% of 73.3%.

Alonso is a power hitter, and hence he often gets on base with extra-base hits that position him to score. However, the Mets’ inability to bring him home has contributed to a high total of stranded baserunners.

The third spot on the LOB leaderboard is occupied by Los Angeles Dodgers’ outfielder Cody Bellinger, who has been left on base 234 times with a LOB% of 73.2%. Bellinger is a former National League MVP who has been struggling with injuries and form in the current season.

The Dodgers’ injury-hit roster has not been able to produce enough firepower to drive home the numerous runners Bellinger has left on base.

Limitations of LOB Statistics

LOB statistics tell us how many baserunners a team or a player has left on base, but it does not reveal the whole picture. A high LOB count may indicate the player is squandering the team’s scoring opportunities, but it does not mean the batter is at fault and could be an indication of factors outside of their control.

A better statistic that accounts for left on base opportunities is the LOB per Baserunner (LOBBR) ratio. The LOBBR ratio calculates the number of baserunners left on base compared to the number of baserunners.

For example, if a player has 100 baserunners in a season and left 50 of them on base, their LOBBR ratio would be 50%.

This ratio gives a better representation of a player’s performance since it accounts for how often the player comes to the plate and how many scoring opportunities they create.

A batter that generates many scoring opportunities will likely have a higher LOBBR, but that is not always the case.

In addition, LOB statistics do not take into account scoring opportunities.

A player who is left on base with nobody out has a higher chance of scoring compared to a player who is stranded with two outs. One player who leaves runners on base early in the game may be contributing to a high LOB statistic, whereas another player who strands runners late in the game may have a more substantial effect on the game’s outcome relative to the LOB statistic.

Moreover, LOB metrics neglect the context of where each opportunity takes place. For example, if a batter gets left on base after hitting a lead-off double in an inning, it may indicate that the team has missed a scoring opportunity.

But if the same batter hits a lead-off double in a game when the opponent is leading by ten runs, it may not have a significant impact on the game’s outcome.


The Left on Base (LOB) statistic measures the number of baserunners left stranded on base by a player or a team.

Francisco Lindor leads the league in Men Left on Base for the 2021-2022 season. LOB is a crucial statistic, but it should not be solely relied upon to evaluate a player’s performance.

Additional context is crucial to understanding the impact of the statistic as it does not account for the number of scoring opportunities a batter provides or the scoring situation in which left-on-base occurs. Therefore, LOB should be combined with other statistics when evaluating players.

This article explores the concept of Left on Base (LOB) in baseball, including the definition, examples, calculation, importance, and limitations. We also covered the top leaders in Men Left on Base, including Francisco Lindor and Pete Alonso of the New York Mets.

Our analysis revealed some of the inherent challenges of relying on LOB statistics, such as incomplete pictures, a baserunner ratio, and scoring position. As a result, LOB should be used in combination with other statistics to evaluate a player’s performance accurately.

Although LOB is a crucial statistic, it should not be solely relied upon to evaluate a player’s performance. FAQs:

Q: What does LOB stand for?

A: LOB stands for Left on Base. Q: How is LOB calculated?

A: LOB is calculated by counting the number of baserunners that a team cannot advance to home plate before the third out. Q: Why is LOB important?

A: LOB is important because it measures a player’s ability to convert scoring opportunities into runs. Q: Who are the top leaders in Men Left on Base?

A: The top two leaders in Men Left on Base are Francisco Lindor and Pete Alonso of the New York Mets. Q: What are the limitations of LOB statistics?

A: LOB statistics often ignore scoring opportunities and may not provide a complete picture of a player’s performance.

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