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In baseball betting, one of the most popular wagers is the total, often referred to as over/under.
This bet is based on the combined number of runs scored by both teams in a game.
Sportsbooks set a projected total—say 8.5—and you choose whether the actual score will go over or under that number. For example, if the final score is 5–4, that’s 9 total runs—over 8.5.
Click the image for live odds
Like all bets, totals come with juice, typically shown as -110 on either side. That means you wager $110 to win $100. Sometimes, you’ll see uneven juice like o9.5 (-105) / u9.5 (-115), which reflects the sportsbook adjusting odds based on betting action or anticipated outcomes.
When to Bet the Over
Overs tend to hit more often when:
- Weather is warm and the wind is blowing out, especially at hitter-friendly parks like Coors Field.
- Pitchers are struggling, either from fatigue or poor form.
- Bullpens are overused, making late-game runs more likely.
- The home plate umpire has a tight strike zone, leading to more walks and longer at-bats.
- Lineups are fully healthy and hitting well.
When to Bet the Under
Unders are smart plays when:
- Wind is blowing in, especially in outdoor parks like Wrigley Field.
- Aces are pitching, especially early in the season when arms are fresh.
- Teams are in slumps or have several key batters injured.
- The umpire has a wide strike zone and favors pitchers.
- Night games tend to be cooler and suppress scoring.
Stadium Impact: Best Parks for Totals
Top 10 Over Stadiums
- Coors Field (Rockies)
- Great American Ball Park (Reds)
- Fenway Park (Red Sox)
- Globe Life Field (Rangers)
- Citizens Bank Park (Phillies)
- Yankee Stadium (Yankees)
- Chase Field (D-backs)
- Guaranteed Rate Field (White Sox)
- Busch Stadium (Cardinals)
- Angel Stadium (Angels)
Top 10 Under Stadiums
- Tropicana Field (Rays)
- Petco Park (Padres)
- Oracle Park (Giants)
- Citi Field (Mets)
- T-Mobile Park (Mariners)
- Comerica Park (Tigers)
- Target Field (Twins)
- Nationals Park (Nationals)
- LoanDepot Park (Marlins)
- American Family Field (Brewers)
Smart bettors factor in weather, pitching, and park data before locking in totals. Over time, reading these edges can turn totals into one of the sharpest plays in the baseball betting market.
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| Title: Betting Totals in Baseball: When to Hit the Over or Under
| Author: Michael Rinnier
| Date: May 21st, 2025
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