MLB Preseason Odds (NL, CA)
September 2026
16 matches · 2 days
16 upcoming matches and outright odds across 22 competitors.
We compare MLB Preseason odds across 26 bookmakers in NL, Canada
Get these odds overlaid directly on BetOpenly, Betsson, BetUS, and more.
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OddsGuard is a free browser extension that overlays real-time odds from 75 sportsbooks directly on the betting site you're already using. No extra tabs, no subscription, no account required.
How it works
- 1Install the free extension (10 seconds)
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- 3See better prices highlighted automatically on every bet
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Upcoming Matches
Today
Los Angeles Angels vs Seattle Mariners
Tue, Sep 15, 1:39 AM
| Bookmaker | Los Angeles Angels | Seattle Mariners |
|---|---|---|
| Best Odds | -104 1xBet | +11011 Polymarket |
 1xBet | -104 | -104 |
 888sport | +1600 | |
 BetOnline.ag | -108 | -103 |
 Everygame | -108 | -103 |
 Matchbook | -1429 | +580 |
 BetAnything | — | -106 |
 Betinia (SE) | -110 | — |
 Betsson | — | +1700 |
 BetUS | -108 | — |
 Betway | — | +750 |
 LeoVegas | -1667 | — |
 LowVig.ag | — | -103 |
 Pinnacle | -1000 | — |
 Polymarket | — | +11011 |
 William Hill | -110 | — |
Arizona Diamondbacks vs Miami Marlins
Tue, Sep 15, 1:41 AM
| Bookmaker | Arizona Diamondbacks | Miami Marlins |
|---|---|---|
| Best Odds | +400 Fliff | +122 BetUS |
 BetOpenly | -135 | +120 |
| Betsson | +322 | -526 |
| Polymarket | +355 | -400 |
| William Hill | -137 | +110 |
| 1xBet | — | +116 |
| 888sport | +275 | — |
 Bet Victor | +340 | — |
| BetAnything | -135 | — |
| Betinia (SE) | — | +110 |
| BetOnline.ag | -139 | — |
| BetUS | — | +122 |
| Everygame | — | +120 |
 Fliff | +400 | — |
| LeoVegas | — | -556 |
| LowVig.ag | -139 | — |
| Pinnacle | — | -526 |
Cleveland Guardians vs Chicago White Sox
Tue, Sep 15, 10:40 PM
Tampa Bay Rays vs Oakland Athletics
Tue, Sep 15, 10:40 PM
| Bookmaker | Tampa Bay Rays | Oakland Athletics |
|---|---|---|
| Best Odds | -208 Betway | +200 BetOnline.ag |
| Betinia (SE) | -222 | +180 |
| Betsson | -233 | +184 |
| BetUS | -222 | +193 |
| William Hill | -227 | +175 |
| 1xBet | — | +192 |
| 888sport | — | +185 |
| Bet Victor | -227 | — |
| BetAnything | -227 | — |
| BetOnline.ag | — | +200 |
| Betway | -208 | — |
| Everygame | — | +195 |
| Fliff | -238 | — |
| LeoVegas | — | +175 |
 Marathon Bet | -233 | — |
| Matchbook | -222 | — |
| Pinnacle | — | +194 |
Cincinnati Reds vs Los Angeles Dodgers
Tue, Sep 15, 10:40 PM
Pittsburgh Pirates vs Milwaukee Brewers
Tue, Sep 15, 10:41 PM
Washington Nationals vs Philadelphia Phillies
Tue, Sep 15, 10:45 PM
Toronto Blue Jays vs Detroit Tigers
Tue, Sep 15, 11:08 PM
New York Mets vs Baltimore Orioles
Tue, Sep 15, 11:10 PM
Chicago Cubs vs Atlanta Braves
Tue, Sep 15, 11:40 PM
| Bookmaker | Chicago Cubs | Atlanta Braves |
|---|---|---|
| Best Odds | -128 BetOpenly | +127 Polymarket |
| 888sport | -141 | +115 |
| Betsson | -139 | +112 |
| Everygame | -135 | +126 |
| William Hill | -137 | +110 |
| 1xBet | — | +118 |
| Bet Victor | -149 | — |
| Betinia (SE) | — | +115 |
| BetOnline.ag | -137 | — |
| BetOpenly | -128 | — |
| Betway | -141 | — |
| Fliff | -141 | — |
| LowVig.ag | -137 | — |
| Marathon Bet | — | +111 |
| Matchbook | — | +120 |
| Polymarket | — | +127 |
 SportsBet | — | +110 |
Minnesota Twins vs New York Yankees
Tue, Sep 15, 11:40 PM
| Bookmaker | Minnesota Twins | New York Yankees |
|---|---|---|
| Best Odds | +163 Polymarket | -172 Pinnacle |
| BetOnline.ag | +155 | -172 |
| Marathon Bet | +143 | -179 |
| Matchbook | +154 | -172 |
| Pinnacle | +154 | -172 |
| 1xBet | +151 | — |
| Bet Victor | — | -189 |
| BetAnything | — | -175 |
| Betsson | +142 | — |
| BetUS | +152 | — |
| Betway | +145 | — |
| Fliff | — | -185 |
| LeoVegas | +145 | — |
| LowVig.ag | — | -172 |
| Polymarket | +163 | — |
| SportsBet | — | -179 |
| William Hill | — | -175 |
St. Louis Cardinals vs San Francisco Giants
Tue, Sep 15, 11:45 PM
Tomorrow
Houston Astros vs Kansas City Royals
Wed, Sep 16, 12:10 AM
Colorado Rockies vs San Diego Padres
Wed, Sep 16, 12:40 AM
Los Angeles Angels vs Seattle Mariners
Wed, Sep 16, 1:38 AM
Arizona Diamondbacks vs Miami Marlins
Wed, Sep 16, 1:40 AM
MLB Preseason Winner Odds
| Competitor | Best Odds | BetOnline.ag | SportsBet |
|---|---|---|---|
Los Angeles Dodgers | +225 BetOnline.ag | +225 | — |
Milwaukee Brewers | +600 BetOnline.ag | +600 | — |
New York Yankees | +800 BetOnline.ag | +800 | — |
Tampa Bay Rays | +1100 BetOnline.ag | +1100 | — |
Atlanta Braves | +1400 BetOnline.ag | +1400 | — |
Philadelphia Phillies | +1500 BetOnline.ag | +1500 | — |
Boston Red Sox | +1600 BetOnline.ag | +1600 | — |
Chicago Cubs | +1800 BetOnline.ag | +1800 | — |
Houston Astros | +2200 BetOnline.ag | +2200 | — |
Chicago White Sox | +2800 BetOnline.ag | +2800 | — |
Cleveland Guardians | +3300 BetOnline.ag | +3300 | — |
San Diego Padres | +4000 BetOnline.ag | +4000 | — |
Toronto Blue Jays | — | +3300 | — |
Texas Rangers | +7500 BetOnline.ag | +7500 | — |
Arizona Diamondbacks | — | +6000 | — |
Miami Marlins | +50000 BetOnline.ag | +50000 | — |
Baltimore Orioles | — | +15000 | — |
Pittsburgh Pirates | — | +30000 | — |
Minnesota Twins | — | +25000 | — |
Detroit Tigers | — | +30000 | — |
Seattle Mariners | — | +10000 | — |
St. Louis Cardinals | +75000 BetOnline.ag | +75000 | — |
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- Run Line
- Baseball's version of the spread, almost always -1.5 / +1.5. The favorite at -1.5 must win by 2+ runs. Unlike football spreads, the run line rarely moves off 1.5.
- Over/Under (Game Total)
- A bet on combined runs scored by both teams. MLB totals typically range from 7 to 10.5, heavily influenced by starting pitchers, ballpark dimensions, and weather.
- First 5 Innings (F5)
- A moneyline, spread, or total that only covers the first five innings. Isolates starting pitcher matchups and removes bullpen variance.
- NRFI / YRFI
- No Run First Inning / Yes Run First Inning. A popular yes/no prop on whether either team scores in the top or bottom of the first inning.
- Listed Pitcher
- A bet condition where your wager is only valid if the listed starting pitcher actually starts. If a pitcher is scratched, the bet is voided.
- Innings Total
- Over/under on the total number of innings played, which can exceed 9 in extra-inning games.
- Moneyline
- A straight-up wager on which side wins. No point spread involved — you simply pick the winner.
- Vig (Juice)
- The bookmaker's commission built into every line. Standard vig is around -110 on each side, meaning you risk $110 to win $100.
- Implied Probability
- The likelihood of an outcome as suggested by the odds. For example, -200 implies a 66.7% chance. Comparing implied probability across bookmakers reveals where value exists.
- Closing Line Value (CLV)
- The difference between the odds you locked in and the odds at the time the market closes. Consistently beating the closing line is the strongest predictor of long-term betting profit.
- Line Movement
- Changes in odds between when a market opens and when it closes. Driven by sharp money, public betting patterns, injuries, and other news.
- Bankroll
- The total amount of money you've set aside specifically for betting. Effective bankroll management — typically risking 1-3% per wager — is essential for surviving variance.
- Unit
- A standardized bet size, typically 1% of your bankroll. Tracking results in units rather than dollars normalizes performance regardless of stake size.
- Hedge
- Placing a bet on the opposite side of an existing wager to lock in a guaranteed profit or reduce exposure, often used with futures or parlays.
- Parlay (Accumulator)
- A single bet combining two or more selections. All picks must win for the parlay to pay out. Higher potential return but significantly lower probability.
- Futures
- Long-term bets on outcomes determined at the end of a season or tournament, such as championship winners, MVP awards, or win totals.
- Live Betting (In-Play)
- Placing wagers while a game is in progress. Odds update continuously based on score, time remaining, and game flow.
- Overround
- The total implied probability across all outcomes in a market. An overround above 100% represents the bookmaker's margin. Lower overround means better value for bettors.
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