Major League Baseball runs from late March through early October, with each of the 30 teams playing 162 regular-season games. The postseason follows in October, leading to the World Series in late October or early November. With games nearly every day from spring through fall, MLB provides bettors with the deepest daily slate of any major US sport. This page tracks live odds for every upcoming MLB matchup throughout the season and into the playoffs.

We show three markets per game. The moneyline is a straight bet on which team wins outright — the most common MLB betting line because of the sport's low-scoring structure. The spread in baseball is called the runline and is almost always set at 1.5 runs, with the favorite at -1.5 and the underdog at +1.5. The total (or over/under) is a wager on combined runs scored by both teams, typically landing between 7.5 and 9.5 for most games depending on the starting pitchers and ballpark.

MLB's daily volume and pitcher-driven variance make line shopping across books especially valuable — small differences on a +1.5 underdog price compound quickly over a long season. BetsDex sits Polymarket alongside traditional sportsbooks, with Polymarket pricing reflecting trader sentiment rather than a bookmaker's built-in vig.

When a sportsbook's implied probability diverges from Polymarket's price on the same game, that gap is often where sharp value lives. Browse our to see the biggest current MLB odds gaps and where pricing disagrees most. Whether you're tracking MLB predictions for a single matchup or shopping MLB betting lines across a full slate, we surface every market side-by-side.