The Cardinals will play the Marlins on Wednesday, August 20th, 2025. Your timezone's first pitch time is 6:40 pm EDT. Check local listings or your nearest streaming app for coverage.
Learn more about MLB Betting with our handy tutorial and guide. We explain money line, total and run line bets. Plus, a great discussion about exotic bets like MLB Baseball parlays and props.
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Table of Contents
- Best Odds
- Interactive Odds Example
- Prop Bets
- Team Futures Odds
- Team Pages
- Team Standings
- Other Games Today
Best Cardinals at Marlins Odds
| Underdog St. Louis Cardinals | Favorite Miami Marlins |
|---|---|
| Over | Under |
|---|---|
| Underdog St. Louis Cardinals | Favorite Miami Marlins |
|---|---|
Matchup Odds FAQs
The Miami Marlins are the -125 moneyline favorite at BetMGM and the St. Louis Cardinals are the +105 moneyline underdog at BetMGM.
The best over line is 8.5 -105 runs at BetMGM, which means you risk $105 to win $100 betting the over. The best under line is 8.5 -115 runs at BetMGM, and that means you risk $115 to win $100 betting the under.
The Miami Marlins are -1.5 +165 run line favorites at BetMGM, while the St. Louis Cardinals are +1.5 -220 run line underdogs at BetMGM.
MLB Odds Example
|
Game |
 BetMGMBet |
|---|---|
Cardinals
Marlins
8/20/25 6:40pm EDT | +105-125 |
- St. Louis Cardinals bettors risk $100 to win $105 at +105 odds. The implied probability for St. Louis Cardinals is 48.78%.
- Miami Marlins bettors risk $100 to win $80 at -125 odds. The implied probability for Miami Marlins is 55.56%.
St. Louis Cardinals at Miami Marlins Prop Bets
| BetMGM Bet |
|
|---|---|
Cardinals
Marlins
First Team to Score
8/20/25 6:40pm EDT | -145+110Bet |
Cardinals
Marlins
Tie
1st Inning Winner
8/20/25 6:40pm EDT | +310+290-140Bet |
Cardinals
Marlins
Tie
First 3 Innings Winner
8/20/25 6:40pm EDT | +154+130+280Bet |
Cardinals
Marlins
To Extra Innings
8/20/25 6:40pm EDT | Yes +750No -1200Bet |
| BetMGM | |
Cardinals
Marlins
1st Team to Score Will Win
8/20/25 6:40pm EDT | Yes -250No +190Bet |
Marlins
Total Runs
STL at MIA 8/20/25 6:40pm EDT | 3.5 o -1553.5 u +118Bet |
Cardinals
Total Runs
STL at MIA 8/20/25 6:40pm EDT | 3.5 o -1453.5 u +110Bet |
Andre Pallante
Strikeouts Thrown
STL at MIA 8/20/25 6:40pm EDT | 3.5 o -1403.5 u +105Bet |
| BetMGM | |
Sandy Alcantara
Strikeouts Thrown
STL at MIA 8/20/25 6:40pm EDT | 4.5 o -1254.5 u -105Bet |
St. Louis Cardinals & Miami Marlins Futures Odds
Latest World Series odds, if available, for each team. Review odds for other teams and learn how to bet on the tournament. See past Championship results and learn how to bet World Series teasers, props and parlays.
St. Louis Cardinals World Series Odds|
Team | BetMGM |
|---|---|
| Cardinals | +100000 Bet |
|
Team | BetMGM |
|---|---|
| Marlins |
St. Louis Cardinals & Miami Marlins Team Pages
Review each team's season win total odds, futures odds, betting bonuses and other valuable information on our exclusive team betting odds pages. Team betting odds and stats update throughout the season:
Team Standings
| Team | W | L | Pct | GB | Home | Away | RS | RA | Diff | Strk | L10 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| St. Louis Cardinals | 73 | 77 | 0.487 | +18.0 | 41-34 | 32-43 | 642 | 694 | -52 | W1 | 4-6 |
| Miami Marlins | 70 | 80 | 0.467 | +21.0 | 36-42 | 34-38 | 655 | 749 | -94 | L1 | 5-5 |
How to Bet on the Game
Time needed: 4 minutes.
How to Bet on the St. Louis Cardinals vs Miami Marlins MLB Game
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Open a new sports betting account before game time.
Review our list of sports betting sites. Open a new account before the game starts on Wednesday, August 20th, 2025 at 6:40 pm EDT, making sure to enter all your personal details correctly. Don't forget to add your bonus code.
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Visit the sportsbook’s cashier, banking, or deposit page.
Navigate to the sportsbook's deposit page. Use your Visa card or MasterCard, or deposit with a bank transfer, or other methods like Paypal.
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Tap to the sportsbook's MLB page, look for the St. Louis Cardinals vs Miami Marlins Game.
Navigate to the sportsbook's MLB page. Next, look for live or upcoming matchups. Select the St. Louis Cardinals vs Miami Marlins Game.
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Choose your bet and place a wager.
Choose your bet and then use the funds you deposited to place a wager. The sportsbook will pay your winnings or deduct a losing wager from your account balance after the game.
Other August 20, 2025 MLB Games
- Toronto Blue Jays vs Pittsburgh Pirates
- Seattle Mariners vs Philadelphia Phillies
- Houston Astros vs Detroit Tigers
- Cleveland Guardians vs Arizona Diamondbacks
- New York Mets vs Washington Nationals
- Chicago White Sox vs Atlanta Braves
- New York Yankees vs Tampa Bay Rays
- Texas Rangers vs Kansas City Royals
- Oakland Athletics vs Minnesota Twins
- Milwaukee Brewers vs Chicago Cubs
- Los Angeles Dodgers vs Colorado Rockies
- Cincinnati Reds vs Los Angeles Angels
- San Francisco Giants vs San Diego Padres