Seattle Mariners vs Tampa Bay Rays Odds

The Mariners will play the Rays on Wednesday, September 3rd, 2025. Your timezone's first pitch time is 7:35 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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Best Mariners at Rays Odds

**Best Moneyline Betting Odds**
Underdog Tampa Bay Rays	Favorite Seattle Mariners
+115 BetMGM Bet	-135 BetMGM Bet

The Seattle Mariners are the -135 moneyline favorite. Risk $135 to win $100 on the Seattle Mariners at BetMGM. The Tampa Bay Rays are the +115 underdog at BetMGM. Risk $100 to win $115 on the Tampa Bay Rays. Learn more about how to bet on money lines.

**Best Total Betting Odds**
Over	Under
8.5 o -115 BetMGM Bet	8.5 u -105 BetMGM Bet

BetMGM has the best over line of 8.5 runs. Risk $115 to win $100. BetMGM has the best under line of 8.5 runs. Risk $105 to win $100. Our tutorial explains more about total bets.

**Best Run Line Betting Odds**
Underdog Tampa Bay Rays	Favorite Seattle Mariners
+1.5 -140 BetMGM Bet	-1.5 +120 BetMGM Bet

The Seattle Mariners have a -1.5 +120 run line at BetMGM OH. They are the run line favorite in this matchup. The Tampa Bay Rays have a +1.5 -140 run line at BetMGM OH. The Tampa Bay Rays are the run line underdogs. Review how to bet on a point spread with our text and video tutorials.

Matchup Odds FAQs

What is the moneyline for the Seattle Mariners vs Tampa Bay Rays MLB game on Wednesday, September 3rd, 2025?

The Seattle Mariners are the -135 moneyline favorite at BetMGM and the Tampa Bay Rays are the +115 moneyline underdog at BetMGM.

What is the over-under total line for the Seattle Mariners vs Tampa Bay Rays MLB game on Wednesday, September 3rd, 2025?

The best over line is 8.5 -115 runs at BetMGM, which means you risk $115 to win $100 betting the over. The best under line is 8.5 -105 runs at BetMGM, and that means you risk $105 to win $100 betting the under.

What is the run line for the Seattle Mariners vs Tampa Bay Rays MLB game on Wednesday, September 3rd, 2025?

The Seattle Mariners are -1.5 +120 run line favorites at BetMGM, while the Tampa Bay Rays are +1.5 -140 run line underdogs at BetMGM.

MLB Odds Example

MLB Odds and Outcomes Explained
Game	BetMGM Bet
Mariners Rays 9/03/25 7:35pm EDT	-135 +115

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Possible Moneyline Outcomes

Tampa Bay Rays bettors risk $100 to win $115 at +115 odds. The implied probability for Tampa Bay Rays is 46.51%.
Seattle Mariners bettors risk $100 to win $74.07 at -135 odds. The implied probability for Seattle Mariners is 57.45%.

Seattle Mariners at Tampa Bay Rays Prop Bets

MLB Prop Bets
+ Displays more odds
	BetMGM Bet
Mariners Rays First Team to Score 9/03/25 7:35pm EDT	-200 +154 Bet
Mariners Rays Tie 1st Inning Winner 9/03/25 7:35pm EDT	+240 +340 -130 Bet
Mariners Rays Tie First 3 Innings Winner 9/03/25 7:35pm EDT	+110 +175 +300 Bet
Mariners Rays To Extra Innings 9/03/25 7:35pm EDT	Yes +775 No -1400 Bet
	BetMGM
Mariners Rays 1st Team to Score Will Win 9/03/25 7:35pm EDT	Yes -250 No +190 Bet
Mariners Total Runs SEA at TAM 9/03/25 7:35pm EDT	4.5 o -110 4.5 u -115 Bet
Rays Total Runs SEA at TAM 9/03/25 7:35pm EDT	3.5 o -130 3.5 u +100 Bet
Adrian Houser Strikeouts Thrown SEA at TAM 9/03/25 7:35pm EDT	3.5 o -150 3.5 u +115 Bet
	BetMGM
George Kirby Strikeouts Thrown SEA at TAM 9/03/25 7:35pm EDT	5.5 o +115 5.5 u -150 Bet

Seattle Mariners & Tampa Bay Rays 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

2025 Seattle Mariners World Series Odds
Team	BetMGM
Mariners	+375 Bet

Tampa Bay Rays World Series Odds

No World Series TM Tampa Bay Rays YR: futures available

Seattle Mariners & Tampa Bay Rays 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

2025 MLB Regular Season Standings - Seattle Mariners, Tampa Bay Rays
Team	W	L	Pct	GB	Home	Away	RS	RA	Diff	Strk	L10
x - Seattle Mariners	90	72	0.556	+7.0	51-30	39-42	766	694	+72	L3	7-3
e - Tampa Bay Rays	77	85	0.475	+20.0	41-40	36-45	714	683	+31	L4	3-7

How to Bet on the Game

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How to Bet on the Seattle Mariners vs Tampa Bay Rays MLB Game

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, September 3rd, 2025 at 7:35 pm EDT, making sure to enter all your personal details correctly. Don't forget to add your bonus code.
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.
Tap to the sportsbook's MLB page, look for the Seattle Mariners vs Tampa Bay Rays Game.
Navigate to the sportsbook's MLB page. Next, look for live or upcoming matchups. Select the Seattle Mariners vs Tampa Bay Rays Game.
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.

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