The Mariners will play the Diamondbacks on Monday, March 9th, 2026. 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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Table of Contents
- Best Odds
- Interactive Odds Example
- Prop Bets
- Team Futures Odds
- Team Pages
- Team Standings
- Other Games Today
Best Mariners at Diamondbacks Odds
| Underdog Arizona Diamondbacks | Favorite Seattle Mariners |
|---|---|
| Over | Under |
|---|
| TBD | TBD |
|---|
Matchup Odds FAQs
The Seattle Mariners are the -115 moneyline favorite at BetMGM and the Arizona Diamondbacks are the -105 moneyline underdog at BetMGM.
MLB Odds Example
|
Game |
 BetMGMBet |
|---|---|
Mariners
Diamondbacks
3/09/26 4:10pm EDT | -115-105 |
- Arizona Diamondbacks bettors risk $100 to win $95.24 at -105 odds. The implied probability for Arizona Diamondbacks is 51.22%.
- Seattle Mariners bettors risk $100 to win $86.96 at -115 odds. The implied probability for Seattle Mariners is 53.49%.
Seattle Mariners at Arizona Diamondbacks Prop Bets
| BetMGM Bet |
|
|---|---|
Mariners
Diamondbacks
3/09/26 4:10pm EDT | Pending BetMGM |
Seattle Mariners & Arizona Diamondbacks 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 | +1300 Bet |
|
Team | BetMGM |
|---|---|
| Diamondbacks | +8000 Bet |
Seattle Mariners & Arizona Diamondbacks 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Arizona Diamondbacks | 0 | 0 | 0.000 | 0.0 | 0-0 | 0-0 | 0 | 0 | 0 | - | 0 |
| Seattle Mariners | 0 | 0 | 0.000 | 0.0 | 0-0 | 0-0 | 0 | 0 | 0 | - | 0 |
How to Bet on the Game
Time needed: 4 minutes.
How to Bet on the Seattle Mariners vs Arizona Diamondbacks 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, March 9th, 2026 at 4:10 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 Arizona Diamondbacks Game.
Navigate to the sportsbook's MLB page. Next, look for live or upcoming matchups. Select the Seattle Mariners vs Arizona Diamondbacks 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 March 9, 2026 MLB Games
- Minnesota Twins vs Atlanta Braves - 3/09/26 1:05pm EDT
- Philadelphia Phillies vs Boston Red Sox - 3/09/26 1:05pm EDT
- Tampa Bay Rays vs Detroit Tigers - 3/09/26 1:05pm EDT
- Los Angeles Angels vs San Francisco Giants - 3/09/26 4:05pm EDT
- Cleveland Guardians vs Kansas City Royals - 3/09/26 4:05pm EDT
- Oakland Athletics vs Cincinnati Reds - 3/09/26 4:05pm EDT
- Colorado Rockies vs Chicago White Sox - 3/09/26 4:05pm EDT
- Los Angeles Dodgers vs Milwaukee Brewers - 3/09/26 4:10pm EDT
- Texas Rangers vs San Diego Padres - 3/09/26 4:10pm EDT
- Miami Marlins vs New York Mets - 3/09/26 6:10pm EDT
- Pittsburgh Pirates vs New York Yankees - 3/09/26 6:35pm EDT