What Is 2018 Major League Baseball season

Overview

The 2018 Major League Baseball (MLB) season marked the 149th season of professional baseball in the United States and Canada. It featured 30 teams across the American and National Leagues, each playing a 162-game regular season schedule from March 29 to September 30.

The season was highlighted by dominant performances from several teams and players, culminating in the Boston Red Sox capturing their ninth World Series title. The Los Angeles Dodgers returned to the Fall Classic for the second consecutive year, but fell to Boston in five games.

• Boston Red Sox won 108 games during the regular season, setting a franchise record and the most wins in MLB since 1998.
• The Los Angeles Dodgers won 92 games and claimed the National League West title, advancing through two grueling playoff series to reach the World Series.
• Mookie Betts of the Red Sox won the American League MVP after batting .346 with 32 home runs and 30 stolen bases.
• Christian Yelich of the Milwaukee Brewers captured the National League MVP with a .326 batting average and 36 home runs.
• The 2018 All-Star Game was held on July 17 at Nationals Park in Washington, D.C., where the American League won 8–6.

How It Works

The MLB season structure includes a regular season, playoffs, and World Series, with teams competing for division titles and wild card spots. Performance metrics and postseason formats determine the path to the championship.

• Regular Season: Each of the 30 teams plays 162 games from late March to September, balancing interleague and intraleague matchups.
• Playoff Format: Ten teams qualify—five from each league—including three division winners and two wild card teams per league.
• Wild Card Game: Introduced in 2012, it features a single-elimination game between the two non-division-winning playoff teams in each league.
• Division Series: A best-of-five series following the Wild Card round, with the higher seed hosting Games 1, 2, and 5.
• League Championship Series: A best-of-seven series to determine each league's pennant winner and World Series representative.
• World Series: The best-of-seven championship series between the AL and NL champions, with home-field advantage going to the team with the better regular-season record.

Comparison at a Glance

Key differences between the American and National Leagues in 2018 included performance metrics and postseason outcomes.

The American League demonstrated superior regular-season dominance, led by the Red Sox and Astros, while the National League featured a tighter race, with the Brewers and Dodgers emerging from competitive divisions. The lack of a designated hitter in NL parks until interleague play added strategic differences throughout the season.

Why It Matters

The 2018 MLB season had lasting impacts on team legacies, player recognition, and postseason strategies. It underscored the importance of depth, analytics, and player versatility in modern baseball.

• The Boston Red Sox became the first team since 2007 to win 100+ games and a World Series in the same season.
• Mookie Betts and Christian Yelich both achieved MVP honors, boosting their Hall of Fame trajectories.
• The Los Angeles Dodgers made their second straight World Series appearance, establishing themselves as a modern NL powerhouse.
• Increased use of bullpenning and opener strategies by teams like the Athletics signaled evolving pitching philosophies.
• Attendance averaged 28,839 per game across MLB, showing stable fan engagement despite concerns over pace of play.
• The season featured 1.3 home runs per game on average, continuing the 'juiced ball' era trend that began in 2015.

The 2018 season remains notable for record-breaking performances, competitive balance, and the continued evolution of baseball strategy in the analytics age.