Last Time the Boston Red Sox Won a MLB Playoff Series

Boston Red Sox manager Alex Cora reacts after a call during the seventh inning of a baseball game against the Chicago Cubs Friday, July 18, 2025, in Chicago.
(AP Photo/Paul Beaty)

The Boston Red Sox last won a playoff series in 2021, recording a 3-1 victory over the Tampa Bay Rays in the American League Division Series.

Boston was eliminated by the Houston Astros in the 2021 ALCS.

Last Time the Boston Red Sox Won an AL Pennant

The Red Sox’s most recent pennant came in 2018, earning a 4-1 series victory over the Houston Astros.

Boston has won 14 pennants in franchise history since 1901.

Last Time the Boston Red Sox Won the World Series

The Red Sox last won the World Series in 2018, securing a 4-1 series victory over the Los Angeles Dodgers.

It marked the fourth time the Red Sox have won a World Series since 2004. They have won nine total championships.

MLB Odds at BetMGM

The BetMGM online sportsbook is your ticket for baseball odds throughout year. Whether you’re looking for college baseball odds, MLB odds, or anything else there are baseball betting opportunities for everyone.

Sign in to your account today — or, if you don’t have an account, sign up today with a sportsbook welcome bonus — to start betting. And don’t forget to check updated sportsbook bonuses and promos each day of the year.

The content provided in this blog is intended for entertainment purposes only. All views and opinions expressed are the authors and reflect their individual perspectives on sports, betting, and related topics. This content should not be considered professional betting advice or the official views of BetMGM LLC. Please gamble responsibly. If you or someone you know is experiencing issues related to gambling, seek help from a licensed health professional. This blog is not liable for any losses, damages, or consequences resulting from betting activities.

About the Author Read More @ShaneThurston25

Shane Thurston is a Web Content Writer for BetMGM, covering MLB and NBA. After graduating from the University of Kansas, his previous stops include MLB.com, Lawrence Journal-World, Manhattan Mercury, Bet Chicago Sports, WynnBET, and Sportsbook Review.

Shane Thurston is a Web Content Writer for BetMGM, covering MLB and NBA. After graduating from the University of Kansas, his previous stops include MLB.com, Lawrence Journal-World, Manhattan Mercury, Bet Chicago Sports, WynnBET, and Sportsbook Review.