The Royals will play the Mariners on Wednesday, March 12th, 2025. Your timezone's first pitch time is 4:10 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 Royals at Mariners Odds

**Best Moneyline Betting Odds**
TBD	TBD

Moneyline odds are updating, please check back soon.

**Best Total Betting Odds**
Over	Under

Total odds are updating, please check back soon.

**Best Run Line Betting Odds**
TBD	TBD

Run Line odds are updating, please check back soon.

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MLB Odds and Outcomes Explained
Game	Book

Kansas City Royals at Seattle Mariners Prop Bets

MLB Prop Bets
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	BetMGM Bet
Royals Mariners 3/12/25 4:10pm EDT	Pending BetMGM

Kansas City Royals & 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.

Kansas City Royals World Series Odds

2025 Kansas City Royals World Series Odds
Team	BetMGM
Royals	+4000 Bet

Seattle Mariners World Series Odds

2025 Seattle Mariners World Series Odds
Team	BetMGM
Mariners	+2500 Bet

Kansas City Royals & 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

2025 MLB Regular Season Standings - Kansas City Royals, Seattle Mariners
Team	W	L	Pct	GB	Home	Away	RS	RA	Diff	Strk	L10
Seattle Mariners	16	12	0.571	+3.5	10-6	6-6	138	123	+15	W2	7-3
Kansas City Royals	14	15	0.483	+6.0	11-5	3-10	91	107	-16	L1	6-4

How to Bet on the Game

Time needed: 4 minutes.

How to Bet on the Kansas City Royals vs Seattle Mariners 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, March 12th, 2025 at 4:10 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 Kansas City Royals vs Seattle Mariners Game.
Navigate to the sportsbook's MLB page. Next, look for live or upcoming matchups. Select the Kansas City Royals vs Seattle Mariners 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.

Other March 12, 2025 MLB Games

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Kansas City Royals vs Seattle Mariners Odds

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