Last season, the Los Angeles Dodgers and New York Yankees represented their respective leagues in the World Series. With the 2025 MLB season now in the second half, which teams look like the favorites to win the pennant in the American League and National League this season? At the best U.S. sportsbooks, you can bet on MLB pennant winner odds throughout the season.

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Many of the best online sportsbooks offer MLB pennant winner odds prior to and during the season, including BetOnline, Bovada, and Everygame Sportsbook.

These three sportsbooks are some of the best MLB betting sites, and along with having futures odds like AL and NL championship winner odds, they all have a variety of pre-game and live betting markets available for MLB games.

So, if you like to make moneyline bets, run line bets, over/under bets, or prop bets for MLB games, or make futures bets on markets like pennant odds, you will not strike out at any of these standout sports betting sites.

If you are unfamiliar with BetOnline, Bovada, or Everygame Sportsbook, you can learn more about them through our in-depth sportsbook reviews.

Our sportsbook reviews cover key factors that many bettors consider when choosing where to bet, such as sportsbook bonuses and betting options.

Keep Up with the Latest MLB Pennant Winner Odds at Betting News

Fans of top MLB teams, such as the Dodgers, Yankees, Braves, Orioles, and Mets, will be invested in the MLB pennant races all year because of the high expectations surrounding those teams.

But whether you are a fan of an expected contender or an also-ran, pennant winner odds will give you an extra reason to keep up with MLB standings and results throughout the season.

As with other MLB futures like World Series winner odds, division winner odds, and MLB MVP odds, MLB pennant futures will fluctuate throughout the season based on performances, injuries, and trades.

For this reason, tracking line movement is important when betting on AL and NL championship winner odds. So is line shopping, because if you are a keen follower of MLB results and news, you may be able to grab a better line at one book if they have not yet made the adjustments that other books may have.

2025 MLB Pennant Winner Odds

Current odds are as of Wednesday, August 6, 2025.

AL Pennant Winner Odds

Team	Current Odds (BetOnline)	Opening Odds (BetOnline)	Opening Odds (Bovada)	Opening Odds (Everygame)
New York Yankees	+450	+400	+400	+350
Houston Astros	+500	+700	+700	+700
Baltimore Orioles	+40000	+700	+650	+550
Boston Red Sox	+800	+700	+700	+700
Texas Rangers	+900	+800	+800	+850
Seattle Mariners	+550	+1000	+950	+1200
Minnesota Twins	+15000	+1100	+1100	+1400
Detroit Tigers	+350	+1100	+1100	+1000
Cleveland Guardians	+6600	+1400	+1400	+1200
Kansas City Royals	+5000	+1400	+1400	+1400
Tampa Bay Rays	+5000	+1600	+1800	+2200
Toronto Blue Jays	+400	+2500	+2000	+2200
Los Angeles Angels	+25000	+6600	+9000	+6600
Athletics	+50000	+6600	+8000	+8000
White Sox	n/a	+25000	+20000	+20000

NL Pennant Winner Odds

Team	Current Odds (BetOnline)	Opening Odds (BetOnline)	Opening Odds (Bovada)	Opening Odds (Everygame)
Los Angeles Dodgers	+175	+135	+135	+130
Atlanta Braves	+25000	+550	+500	+500
Philadelphia Phillies	+475	+650	+675	+600
New York Mets	+500	+700	+675	+550
San Diego Padres	+600	+1200	+1000	+1400
Chicago Cubs	+600	+1400	+1500	+1400
Arizona Diamondbacks	+12500	+1400	+1500	+1600
Milwaukee Brewers	+600	+2200	+2400	+2200
Cincinnati Reds	+5000	+3300	+3300	+3300
San Francisco Giants	+4500	+3500	+4000	+5000
St. Louis Cardinals	+10000	+5000	+5500	+5000
Pittsburgh Pirates	+50000	+6000	+7000	+5000
Washington Nationals	+50000	+10000	+10000	+10000
Miami Marlins	+25000	+25000	+20000	+30000
Colorado Rockies	n/a	+25000	+20000	+25000

Recent MLB Pennant Winners

Since 1903, the champion of the American League has met the champion of the National League in the World Series.

Prior to 1969, there were no divisions in either the AL or NL, and the champion (a.k.a. pennant winner) in each league was decided by the regular season standings in each league, or in the event of a tie in the standings, a playoff between the tied teams.

In 1969, MLB expanded from 20 to 24 teams, with two six-teams divisions in each league. Since then, pennant winners have been decided by a playoff system.

In the current playoff system, six teams from each league make the postseason, and three rounds (the Wild Card round, the Divisional round, and the League Championship Series round) are played to determine the pennant winners/World Series matchup.

AL & NL Champions Since 2005

World Series winners are in bold.

Year	American League	National League
2024	New York Yankees	Los Angeles Dodgers
2023	Texas Rangers	Arizona Diamondbacks
2022	Houston Astros	Philadelphia Phillies
2021	Houston Astros	Atlanta Braves
2020	Tampa Bay Rays	Los Angeles Dodgers
2019	Houston Astros	Washington Nationals
2018	Boston Red Sox	Los Angeles Dodgers
2017	Houston Astros	Los Angeles Dodgers
2016	Cleveland Guardians	Chicago Cubs
2015	Kansas City Royals	New York Mets
2014	Kansas City Royals	San Francisco Giants
2013	Boston Red Sox	St. Louis Cardinals
2012	Detroit Tigers	San Francisco Giants
2011	Texas Rangers	St. Louis Cardinals
2010	Texas Rangers	San Francisco Giants
2009	New York Yankees	Philadelphia Phillies
2008	Tampa Bay Rays	Philadelphia Phillies
2007	Boston Red Sox	Colorado Rockies
2006	Detroit Tigers	St. Louis Cardinals
2005	Chicago White Sox	Houston Astros

Bet on 2025 MLB Pennant Winner Odds at These Top Online Sportsbooks

Keep Up with the Latest MLB Pennant Winner Odds at Betting News

2025 MLB Pennant Winner Odds

AL Pennant Winner Odds

NL Pennant Winner Odds

Recent MLB Pennant Winners

AL & NL Champions Since 2005

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2025 MLB Pennant Winner Odds Tracker