The Rays will play the Mariners on Saturday, August 8th, 2026. Your timezone's first pitch time is 9:50 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.
| Bonus | |
|---|---|
 #1 BetRiversREVIEW | New Customers - 2nd Chance Bet up to $500 - Code: SPORTS Bet Now 21+ Playable in PA only Gambling Problem? Call 1-800-GAMBLER |
Table of Contents
- Best Odds
- Interactive Odds Example
- Prop Bets
- Team Futures Odds
- Team Pages
- Team Standings
- Other Games Today
Best Rays at Mariners Odds
| Underdog Tampa Bay Rays | Favorite Seattle Mariners |
|---|---|
| Over | Under |
|---|---|
| Underdog Seattle Mariners | Favorite Tampa Bay Rays |
|---|---|
Matchup Odds FAQs
The Seattle Mariners are the -118 moneyline favorite at BetRivers and the Tampa Bay Rays are the +100 moneyline underdog at BetRivers.
The best over line is 5 -435 runs at BetRivers, which means you risk $435 to win $100 betting the over. The best under line is 5 +260 runs at BetRivers, and that means you risk $100 to win $260 betting the under.
The Tampa Bay Rays are -2.5 +270 run line favorites at BetRivers, while the Seattle Mariners are +2.5 -455 run line underdogs at BetRivers.
MLB Odds Example
|
Game |
 BetRiversBet |
|---|---|
Rays
Mariners
8/08/26 9:50pm EDT | +100-118 |
- Tampa Bay Rays bettors risk $100 to win $100 at +100 odds. The implied probability for Tampa Bay Rays is 50%.
- Seattle Mariners bettors risk $100 to win $84.75 at -118 odds. The implied probability for Seattle Mariners is 54.13%.
Tampa Bay Rays at Seattle Mariners Prop Bets
| BetRivers Bet |
|
|---|---|
Rays
Mariners
Tie
1st Inning Winner
8/08/26 9:50pm EDT | +340+350-175Bet |
Mariners
Total Runs
TAM at SEA 8/08/26 9:50pm EDT | 3.5 o +1003.5 u -127Bet |
Rays
Total Runs
TAM at SEA 8/08/26 9:50pm EDT | 3.5 o -1033.5 u -124Bet |
Tampa Bay Rays & 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.
Tampa Bay Rays World Series Odds|
Team | BetRivers |
|---|---|
| Rays | +1000 Bet |
|
Team | BetRivers |
|---|---|
| Mariners | +10000 Bet |
Tampa Bay Rays & 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Tampa Bay Rays | 86 | 58 | 0.597 | +3.0 | 47-25 | 39-33 | 654 | 601 | +53 | W1 | 6-4 |
| Seattle Mariners | 68 | 78 | 0.466 | +22.0 | 39-35 | 29-43 | 577 | 652 | -75 | W1 | 4-6 |
How to Bet on the Game
Time needed: 4 minutes.
How to Bet on the Tampa Bay Rays 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 Saturday, August 8th, 2026 at 9:50 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 Tampa Bay Rays vs Seattle Mariners Game.
Navigate to the sportsbook's MLB page. Next, look for live or upcoming matchups. Select the Tampa Bay Rays 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 August 8, 2026 MLB Games
- Atlanta Braves vs New York Yankees
- Oakland Athletics vs Boston Red Sox
- Los Angeles Angels vs Miami Marlins
- Toronto Blue Jays vs Philadelphia Phillies
- New York Mets vs Pittsburgh Pirates
- Cincinnati Reds vs Washington Nationals
- Chicago Cubs vs Kansas City Royals
- Baltimore Orioles vs Texas Rangers
- Colorado Rockies vs St. Louis Cardinals
- Detroit Tigers vs San Francisco Giants
- Houston Astros vs San Diego Padres
- Cleveland Guardians vs Chicago White Sox
- Los Angeles Dodgers vs Arizona Diamondbacks