Prensa Internacional/Zuma Press/Icon Sportswire
Author: Anthony Vlahovic
Last Updated: 25 August, 2025
2025 MLB League Winner Odds
Becoming a World Series champion is the goal for all MLB teams, but winning a pennant is nothing to brush off. Before teams can fight for a World Series ring, they must first win their league's pennant, a feat that adds to the bragging rights for fans debating which franchise is historically superior. In 2024, two powerhouse franchises returned to the top as the Yankees and Dodgers broke through to the World Series.
Both teams opened as the favorites to win their respective league in 2025, and with the season into late August, we’ll look at the updated odds for each team to win the AL or NL across all the top sportsbooks in Arizona.
2025 AL Winner - Best Odds
Team | Opening Odds | Current Best Odds |
|---|---|---|
Detroit Tigers | +1300 | +325 (Bet365) |
Toronto Blue Jays | +3000 | +375 (BetMGM) |
New York Yankees | +290 | +475 (Bet365*) |
Houston Astros | +550 | +525 (BetMGM) |
Seattle Mariners | +1200 | +550 (DraftKings*) |
Boston Red Sox | +1700 | +900 (DraftKings) |
Texas Rangers | +1200 | +5000 (DraftKings) |
Kansas City Royals | +1800 | +5000 (Bet365) |
Cleveland Guardians | +1200 | +10,000 (DraftKings*) |
Tampa Bay Rays | +3000 | +25,000 (BetMGM*) |
Minnesota Twins | +1300 | +50,000 (BetMGM*) |
Los Angeles Angels | +12,000 | +50,000 (DraftKings*) |
Baltimore Orioles | +450 | +50,000 (Bet365*) |
Athletics | +7500 | +100,000 (Bet365) |
Chicago White Sox | +20,000 | +150,000 (Bet365) |
Odds as of August 25, 2025
* = the same odds are offered by multiple sportsbooks.
2025 AL Winner Top 10 Contenders
Team | DraftKings | BetMGM | Bet365 |
|---|---|---|---|
Detroit Tigers | +290 | +280 | +325 |
Toronto Blue Jays | +370 | +375 | +325 |
Houston Astros | +425 | +525 | +475 |
New York Yankees | +450 | +475 | +475 |
Seattle Mariners | +550 | +500 | +550 |
Boston Red Sox | +900 | +825 | +700 |
Kansas City Royals | +4000 | +4000 | +5000 |
Texas Rangers | +5000 | +4000 | +4000 |
Cleveland Guardians | +10,000 | +10,000 | +4000 |
Tampa Bay Rays | +25,000 | +25,000 | +12,500 |
*Odds as of August 25, 2025
Current American League Favorites
Detroit Tigers: The Tigers burst onto the scene last season and proved they have the potential to be a contender for years to come. Behind a strong rotation led by 2024 Cy Young Tarik Skubal and Casey Mize, who is on a career resurgence, the Tigers' pitching staff has the third-lowest xFIP in the league this season. Meanwhile, players like Spencer Torkelson, Riley Greene, and Kerry Carpenter have contributed to Detroit's offense, which ranks 10th in OPS and ninth in home runs. These metrics have also led the Tigers to be the favorite to be the #1 seed in the AL at (-155).
Toronto Blue Jays: Ever since the Blue Jays swept the Yankees before the All-Star break and took over first place, they have not looked back. Toronto is now five games up on the Red Sox and 5.5 games up on the Yankees. While the Blue Jays have the second-best SLG and best OPS in the league over the past 30 days, the depth of their pitching staff remains the most significant question mark as to how far Toronto will go this season. Of course, Toronto did make a big move to correct that by acquiring Shane Bieber, who was lights out in his debut with the team.
Houston Astros: Just like last season, the Houston Astros got off to a slow start. However, Houston has since kicked into gear and holds a lead in the AL West as the season enters late August. Sitting two games up on the Mariners, the Astros' pitching staff has the second-lowest xFIP in the league this season. On offense, the Astros went out and acquired Carlos Correa and Jesus Sanchez, as they help try to add more consistency to a lineup that has the 8th lowest OPS in the league over the past 30 days.
2025 NL Winner - Best Odds
Team | Opening Odds | Current Best Odds |
|---|---|---|
Los Angeles Dodgers | +215 | +245 (DraftKings) |
Milwaukee Brewers | +2200 | +400 (DraftKings) |
Philadelphia Phillies | +550 | +425 (Bet365) |
San Diego Padres | +850 | +550 (BetMGM*) |
Chicago Cubs | +1800 | +700 (Bet365*) |
New York Mets | +700 | +900 (BetMGM) |
Cincinnati Reds | +2800 | +6000 (DraftKings) |
San Francisco Giants | +4500 | +50,000 (BetMGM*) |
St. Louis Cardinals | +3000 | +50,000 (DraftKings*) |
Arizona Diamondbacks | +1600 | +60,000 (Bet365) |
Atlanta Braves | +425 | +60,000 (Bet365) |
Miami Marlins | +13,000 | +60,000 (Bet365) |
Pittsburgh Pirates | +5000 | +60,000 (Bet365) |
Washington Nationals | +8000 | +60,000 (Bet365) |
Colorado Rockies | +20,000 | OTB |
Odds as of August 25, 2025
* = the same odds are offered by multiple sportsbooks.
2025 NL Winner Top 10 Contenders
Team | DraftKings | BetMGM | Bet365 |
|---|---|---|---|
Los Angeles Dodgers | +245 | +225 | +185 |
Philadelphia Phillies | +310 | +375 | +425 |
Milwaukee Brewers | +400 | +375 | +370 |
San Diego Padres | +550 | +550 | +475 |
Chicago Cubs | +700 | +650 | +700 |
New York Mets | +850 | +900 | +850 |
Cincinnati Reds | +6000 | +4000 | +5500 |
San Francisco Giants | +50,000 | +50,000 | +22,500 |
St. Louis Cardinals | +50,000 | +50,000 | +22,500 |
Arizona Diamondbacks | +50,000 | +50,000 | +60,000 |
*Odds as of August 25, 2025
Current National League Favorites
Los Angeles Dodgers: The reigning World Series champions returned a ton of crucial pieces for the 2025 season, and to make things even better, Shohei Ohtani is back on the mound after he put up an MVP season at DH. LA has always been one of the biggest spenders in the offseason, and this year was no different. With a good mix of returning players and new acquisitions, LA is 3rd in xwOBA and 2nd in xSLG, while their pitching staff is 5th in strikeouts. Despite those strong numbers, though, the Dodgers have played around .500 baseball for most of the summer, which has them tied with the Padres in the NL West.
Philadelphia Phillies: Talent-wise, the Phillies can stack up with any pitching staff or lineup in the league. With plenty of power riddled throughout the lineup, Philadelphia is 6th in xwOBACON. On the mound, Philadelphia is 5th in wOBA and 2nd in strikeouts this season. However, the Phillies just suffered a massive injury with Zack Wheeler needing shoulder surgery. This puts more pressure on Cristopher Sanchez, Ranger Suarez, and Aaron Nola.
Milwaukee Brewers: There is currently no team playing better baseball than the Milwaukee Brewers. By boasting the best record in baseball, the Brewers have built a five-game lead over the Cubs in the NL Central. Milwaukee has climbed their way to the top of the league by dominating both sides of the ball, as its pitching staff is 3rd in SLG, 3rd in wOBA, and 2nd in hard hit percentage, per BaseballSavant. Meanwhile, on offense, they have the highest SLG and OPS over the last 30 days.
Past American League Pennant Winners & Odds
Season | Winner | Opening odds | Mid-season odds |
|---|---|---|---|
2024 | New York Yankees | +750 | +275 |
2023 | Texas Rangers | +2500 | +475 |
2022 | Houston Astros | +375 | +200 |
2021 | Houston Astros | +1100 | +225 |
2020 | Tampa Bay Rays | +1200 | +557 |
2019 | Houston Astros | +295 | +215 |
Previous National League Pennant Winners & Odds
Season | Winner | Opening odds | Mid-season odds |
|---|---|---|---|
2024 | Los Angeles Dodgers | +380 | +175 |
2023 | Arizona Diamondbacks | +3500 | +1200 |
2022 | Philadelphia Phillies | +1400 | +2000 |
2021 | Atlanta Braves | +450 | +175 |
2020 | Los Angeles Dodgers | +285 | +152 |
2019 | Washington Nationals | +800 | +1250 |
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