The Mariners will play the Phillies on Wednesday, August 20th, 2025. Your timezone's first pitch time is 1:05 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 Mariners at Phillies Odds
| Underdog Seattle Mariners | Favorite Philadelphia Phillies |
|---|---|
| Over | Under |
|---|---|
| Underdog Seattle Mariners | Favorite Philadelphia Phillies |
|---|---|
Matchup Odds FAQs
The Philadelphia Phillies are the -155 moneyline favorite at BetMGM and the Seattle Mariners are the +130 moneyline underdog at BetMGM.
The best over line is 8.5 -120 runs at BetMGM, which means you risk $120 to win $100 betting the over. The best under line is 8.5 +100 runs at BetMGM, and that means you risk $100 to win $100 betting the under.
The Philadelphia Phillies are -1.5 +140 run line favorites at BetMGM, while the Seattle Mariners are +1.5 -170 run line underdogs at BetMGM.
MLB Odds Example
|
Game |
 BetMGMBet |
|---|---|
Mariners
Phillies
8/20/25 1:05pm EDT | +130-155 |
- Seattle Mariners bettors risk $100 to win $130 at +130 odds. The implied probability for Seattle Mariners is 43.48%.
- Philadelphia Phillies bettors risk $100 to win $64.52 at -155 odds. The implied probability for Philadelphia Phillies is 60.78%.
Seattle Mariners at Philadelphia Phillies Prop Bets
| BetMGM Bet |
|
|---|---|
Mariners
Phillies
First Team to Score
8/20/25 1:05pm EDT | -120-105Bet |
Mariners
Phillies
Tie
1st Inning Winner
8/20/25 1:05pm EDT | +333+250-130Bet |
Mariners
Phillies
Tie
First 3 Innings Winner
8/20/25 1:05pm EDT | +180+105+300Bet |
Mariners
Phillies
To Extra Innings
8/20/25 1:05pm EDT | Yes +775No -1400Bet |
| BetMGM | |
Mariners
Phillies
1st Team to Score Will Win
8/20/25 1:05pm EDT | Yes -250No +190Bet |
Phillies
Total Runs
SEA at PHI 8/20/25 1:05pm EDT | 4.5 o -1054.5 u -125Bet |
Mariners
Total Runs
SEA at PHI 8/20/25 1:05pm EDT | 3.5 o -1403.5 u +105Bet |
Jesus Luzardo
Strikeouts Thrown
SEA at PHI 8/20/25 1:05pm EDT | 6.5 o -1206.5 u -105Bet |
| BetMGM | |
Luis Castillo
Strikeouts Thrown
SEA at PHI 8/20/25 1:05pm EDT | 4.5 o -1504.5 u +115Bet |
Seattle Mariners & Philadelphia Phillies 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.
Seattle Mariners World Series Odds|
Team | BetMGM |
|---|---|
| Mariners | +1200 Bet |
|
Team | BetMGM |
|---|---|
| Phillies | +800 Bet |
Seattle Mariners & Philadelphia Phillies 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Philadelphia Phillies | 78 | 57 | 0.578 | +5.0 | 44-22 | 34-35 | 646 | 546 | +100 | W2 | 6-4 |
| Seattle Mariners | 72 | 62 | 0.537 | +10.5 | 41-27 | 31-35 | 616 | 591 | +25 | W1 | 4-6 |
How to Bet on the Game
Time needed: 4 minutes.
How to Bet on the Seattle Mariners vs Philadelphia Phillies 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 1:05 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 Seattle Mariners vs Philadelphia Phillies Game.
Navigate to the sportsbook's MLB page. Next, look for live or upcoming matchups. Select the Seattle Mariners vs Philadelphia Phillies 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 - 8/20/25 12:35pm EDT
- Houston Astros vs Detroit Tigers - 8/20/25 1:10pm EDT
- Cleveland Guardians vs Arizona Diamondbacks - 8/20/25 3:40pm EDT
- St. Louis Cardinals vs Miami Marlins - 8/20/25 6:40pm EDT
- New York Mets vs Washington Nationals - 8/20/25 6:45pm EDT
- Chicago White Sox vs Atlanta Braves - 8/20/25 7:15pm EDT
- New York Yankees vs Tampa Bay Rays - 8/20/25 7:35pm EDT
- Texas Rangers vs Kansas City Royals - 8/20/25 7:40pm EDT
- Oakland Athletics vs Minnesota Twins - 8/20/25 7:40pm EDT
- Milwaukee Brewers vs Chicago Cubs - 8/20/25 8:05pm EDT
- Los Angeles Dodgers vs Colorado Rockies - 8/20/25 8:40pm EDT
- Cincinnati Reds vs Los Angeles Angels - 8/20/25 9:38pm EDT
- San Francisco Giants vs San Diego Padres - 8/20/25 9:40pm EDT