MLB Underdog Betting Stats
Moneyline underdog record • 2026 Season
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> Track how MLB teams perform as moneyline underdogs during the 2026 season. This report shows win percentages and units profit for every team, starting pitcher, day of the week, and overall season totals. Underdog betting is one of the highest-ROI strategies in baseball -- use this data to find value.
Updated Apr 5, 7:12 am
The Case For Betting MLB Underdogs -- And Knowing Which Ones To Back
Baseball has more variance than any other major sport. On any given day, the best team in baseball loses to the worst team about 35% of the time. That variance creates a market inefficiency: casual bettors consistently over-bet favorites, and the books shade lines to reflect that. The result is that ML underdogs in baseball tend to be overpriced relative to their actual win probability.
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But not all dogs are created equal. A +180 dog with a weak rotation and a bad bullpen is a trap. A +130 dog going through a hot stretch with their ace on the mound is value. This report separates them.
What The 2026 Underdog Data Shows
Through the first month of the season, the Cincinnati Reds are the most profitable underdog play in baseball: 14-8 when listed as dogs (64%) at an average line of +111.8 -- that's 7.82 units of profit. Chicago Cubs as underdogs are winning 67% of their games in a small sample. Washington at +143 average odds is converting at 52%, good for +7.51 units.
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On the other side, Miami as dogs is 5-11 (31%) and costing bettors money at every price point. These are the teams to fade when they're listed as dogs.
Pitcher-Level Underdog Records
The most actionable part of this report is the pitcher table. A starter who wins 60% of his games as an underdog over 10-15 starts isn't just getting lucky -- perhaps his team is playing harder for him, or he's outperforming his run support consistently. Knowing which pitchers generate value as dogs versus which ones are money sinks is something I haven't seen tracked anywhere else at a multi-year level, updated daily.
How To Use This Page Before Betting
Before betting a dog on tonight's card, check both the team table and the pitcher table on this page. If the team has a positive unit record as a underdogs this season AND the starter is a profitable dog, that's a double confirmation worth action on. If the team is losing money as dogs but the pitcher is profitable, the pitcher signal still has value -- especially at prices above +130 where the edge compounds.
Related Reports
MLB Live Betting Report -- how underdog teams perform in-game
MLB Probable Pitchers -- find tonight's dog starters
MLB Trends -- season-level team, batter, and pitcher context