The Red Sox will play the Mariners on Monday, June 16th, 2025. Your timezone's first pitch time is 9:40 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
- Matchup Stats
- Captain Shady Lines
- Best Odds
- Interactive Odds Example
- Prop Bets
- Team Futures Odds
- Team Pages
- Team Standings
- Other Games Today
Key Matchup Stats
- SportsBetting3.com Power Rankings - As the 2025 season continues, the Boston Red Sox possess a 91.00 SportsBetting3.com power ranking. The Seattle Mariners now have a 93.67 power ranking. Teams with a higher SportsBetting3.com power ranking will typically be moneyline favorites.
- Visiting Boston Red Sox - The Boston Red Sox head into this matchup with a 11-15 record as a visiting team. This standing ranks them 7th Overall for visiting team wins.
- Home Seattle Mariners - The Seattle Mariners will throw the first pitch possessing a 13-11 home team record. That puts them 7th for home team wins in the Overall MLB standings.
- Runs Scored - Boston Red Sox batters have produced 269 runs, ranking them 6th Overall, with the Seattle Mariners ranking 11th (238) for runs scored.
- Runs Allowed - Boston Red Sox pitchers and fielders have allowed 252 runs, ranking them 8th Overall for runs allowed. Meanwhile, the Seattle Mariners now rank 16th Overall, allowing 219 runs.
- Team Streaks - The Boston Red Sox have lost their last 3 games. Their opponent, the Seattle Mariners have lost their last 2 games.
- Team Records - Let's review each team's records. The Boston Red Sox have a 27-29 Overall record (8.5 GB American East Division), with the Seattle Mariners notching a 29-23 Overall standing (0.0 GB American West Division).
Captain Shady Lines
A broken compass is right at least twice a day.
Avast ye, ye scurvy dogs! The Red Sox be takin' on the Mariners in Seattle... (Arrr, they be needin' to turn the tide and plunder a win!). With a record below .500, the Red Sox be needin' to fight harder... (or they'll be walkin' the plank!). The Mariners be holdin' a better record, but the Red Sox be hungry... (for victory and to raise the Jolly Roger in victory!). So grab yer grog, me hearties, and check out this game's prop bets below... bet on MLB baseball at legal US sportsbooks and see who comes out on top!
The Red Sox be needin' to set sail on a winnin' streak... (or they'll be swimmin' with the sharks!). The Mariners be lookin' to defend their home turf and send the Red Sox packin'... (back to Davy Jones' locker!). It be a battle of wills and skill on the diamond... (may the best crew emerge triumphant!). So batten down the hatches and get ready for a clash of titans... (the Red Sox be lookin' to make a statement and show they be a force to be reckoned with!).
Review each team's standing at the bottom of the page... and may the wind be at yer back, me hearties!
Best Red Sox at Mariners Odds
| Underdog Boston Red Sox | Favorite Seattle Mariners |
|---|---|
| Over | Under |
|---|---|
| Underdog Boston Red Sox | Favorite Seattle Mariners |
|---|---|
Matchup Odds FAQs
The Seattle Mariners are the -175 moneyline favorite at BetMGM and the Boston Red Sox are the +145 moneyline underdog at BetMGM.
The best over line is 7 -120 runs at BetMGM, which means you risk $120 to win $100 betting the over. The best under line is 7 +100 runs at BetMGM, and that means you risk $100 to win $100 betting the under.
The Seattle Mariners are -1.5 +125 run line favorites at BetMGM, while the Boston Red Sox are +1.5 -150 run line underdogs at BetMGM.
MLB Odds Example
|
Game |
 BetMGMBet |
|---|---|
Red Sox
Mariners
9:40pm EDT | +145-175 |
- Boston Red Sox bettors risk $100 to win $145 at +145 odds. The implied probability for Boston Red Sox is 40.82%.
- Seattle Mariners bettors risk $100 to win $57.14 at -175 odds. The implied probability for Seattle Mariners is 63.64%.
Boston Red Sox at Seattle Mariners Prop Bets
| BetMGM Bet |
|
|---|---|
Red Sox
Mariners
First Team to Score
9:40pm EDT | -115-110Bet |
Red Sox
Mariners
Tie
1st Inning Winner
9:40pm EDT | +375+270-150Bet |
Red Sox
Mariners
Tie
First 3 Innings Winner
9:40pm EDT | +195+115+260Bet |
Red Sox
Mariners
To Extra Innings
9:40pm EDT | Yes +700No -1100Bet |
| BetMGM |
Boston Red Sox & Seattle Mariners 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.
Boston Red Sox World Series Odds|
Team | BetMGM |
|---|---|
| Red Sox | +5000 Bet |
|
Team | BetMGM |
|---|---|
| Mariners | +3000 Bet |
Boston Red Sox & Seattle Mariners 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Seattle Mariners | 29 | 23 | 0.558 | +5.0 | 13-11 | 16-12 | 238 | 219 | +19 | L2 | 6-4 |
| Boston Red Sox | 27 | 29 | 0.482 | +9.0 | 16-14 | 11-15 | 269 | 252 | +17 | L3 | 5-5 |
How to Bet on the Game
Time needed: 4 minutes.
How to Bet on the Boston Red Sox vs Seattle Mariners 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 Monday, June 16th, 2025 at 9:40 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 Boston Red Sox vs Seattle Mariners Game.
Navigate to the sportsbook's MLB page. Next, look for live or upcoming matchups. Select the Boston Red Sox vs Seattle Mariners 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 June 16, 2025 MLB Games
- Philadelphia Phillies vs Miami Marlins - 6:40pm EDT
- Colorado Rockies vs Washington Nationals - 6:45pm EDT
- Los Angeles Angels vs New York Yankees - 7:05pm EDT
- Baltimore Orioles vs Tampa Bay Rays - 7:35pm EDT
- Houston Astros vs Oakland Athletics - 10:05pm EDT
- San Diego Padres vs Los Angeles Dodgers - 10:10pm EDT