2025 MLB AL & NL Reliever of the Year

By Ian Jones
Updated:
- This page tracks the odds to win the 2025 MLB Reliever of the Year Award
- The early favorites are the Guardians’ Emmanuel Clase in the AL and the Mets’ Edwin Diaz in the NL
- Use the graphs below to see the current and previous MLB Reliever of the Year odds
In 2014, Major League Baseball started handing out an AL and NL Reliever of the Year Award. Cleveland’s Emmanuel Clase and St Louis’ Ryan Helsley took home the honors last year, Clase for the second time and Helsley earning his first award. The page below tracks this 2025 MLB Reliever of the Year Award in both the American League and National League.
2025 AL Reliever of the Year Odds

2025 AL Reliever of the Year Favorites
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Miller, Mason |
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- BET NOW | - BET NOW | - BET NOW | - BET NOW |
Munoz, Andres |
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- BET NOW | - BET NOW | - BET NOW | - BET NOW |
Hoffman, Jeff |
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- BET NOW | - BET NOW | - BET NOW | - BET NOW |
Hader, Josh |
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- BET NOW | - BET NOW | - BET NOW | - BET NOW |
Weaver, Luke |
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- BET NOW | - BET NOW | - BET NOW | - BET NOW |
Duran, Jhoan |
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- BET NOW | - BET NOW | - BET NOW | - BET NOW |
Chapman, Aroldis |
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- BET NOW | - BET NOW | - BET NOW | - BET NOW |
Jansen, Kenley |
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- BET NOW | - BET NOW | - BET NOW | - BET NOW |
Bautista, Felix |
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- BET NOW | - BET NOW | - BET NOW | - BET NOW |
Fairbanks, Peter |
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- BET NOW | - BET NOW | - BET NOW | - BET NOW |
AL Reliever of the Year odds are updated every 30-60 minutes, with odds provided by FanDuel Sportsbook, DraftKings Sportsbook, and others.
AL Reliever of the Year Race Timeline
- April 10: Mason Miller, the A’s fireballer, is your new AL Reliever of the Year favorite, with odds averaging at +185.
- March 13: Reigning-winner Emmanuel Clase of the Cleveland Guardians has opened as the +275, narrowly ahead of the Athletics’ Mason Miller.

2025 NL Reliever of the Year Odds
2025 NL Reliever of the Year Favorites
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Suarez, Robert |
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- BET NOW | - BET NOW | - BET NOW | - BET NOW |
Martinez, Justin |
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- BET NOW | - BET NOW | - BET NOW | - BET NOW |
Helsley, Ryan |
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- BET NOW | - BET NOW | - BET NOW | - BET NOW |
Diaz, Edwin |
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- BET NOW | - BET NOW | - BET NOW | - BET NOW |
Finnegan, Kyle |
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- BET NOW | - BET NOW | - BET NOW | - BET NOW |
Alvarado, Jose |
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- BET NOW | - BET NOW | - BET NOW | - BET NOW |
Iglesias, Raisel |
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- BET NOW | - BET NOW | - BET NOW | - BET NOW |
Doval, Camilo |
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- BET NOW | - BET NOW | - BET NOW | - BET NOW |
Walker, Ryan |
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- BET NOW | - BET NOW | - BET NOW | - BET NOW |
Puk, Andrew Jacob |
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- BET NOW | - BET NOW | - BET NOW | - BET NOW |
NL Reliever of the Year odds are updated every 30-60 minutes.
NL Reliever of the Year Race Timeline
- April 10: Arizona’s Justin Martinez has come out of nowhere since Opening Day to become the new Reliever favorite. In just two weeks, his average odds have shortened from +1467 to +287.
- March 13: Edwin Diaz has opened as the +375 betting favorite to win NL Reliever of the Year, just ahead of 2024-winner Ryan Helsley at +450.

MLB, NFL & MLS Writer
With a background in content marketing, literature, and design, Ian has been bringing a little bit of everything to SBD since 2021. In addition to having penned articles for Eighty-Six Forever, Ian can and will talk your ear off over almost any sport you can think of.