The Guardians will play the Mariners on Sunday, March 29th, 2026. Your timezone's first pitch time is 7:20 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 Guardians at Mariners Odds
| Underdog Cleveland Guardians | Favorite Seattle Mariners |
|---|---|
| Over | Under |
|---|---|
| Underdog Cleveland Guardians | Favorite Seattle Mariners |
|---|---|
Matchup Odds FAQs
The Seattle Mariners are the -140 moneyline favorite at BetMGM and the Cleveland Guardians are the +123 moneyline underdog at BetRivers.
The best over line is 7.5 -110 runs at BetMGM, which means you risk $110 to win $100 betting the over. The best under line is 7.5 -107 runs at BetRivers, and that means you risk $107 to win $100 betting the under.
The Seattle Mariners are -1.5 +145 run line favorites at BetMGM, while the Cleveland Guardians are +1.5 -175 run line underdogs at BetMGM.
MLB Odds Example
|
Game |
 BetMGMBet |
|---|---|
Guardians
Mariners
3/29/26 7:20pm EDT | +118-140 |
- Cleveland Guardians bettors risk $100 to win $118 at +118 odds. The implied probability for Cleveland Guardians is 45.87%.
- Seattle Mariners bettors risk $100 to win $71.43 at -140 odds. The implied probability for Seattle Mariners is 58.33%.
Cleveland Guardians at Seattle Mariners Prop Bets
| BetMGM Bet |
|
|---|---|
Guardians
Mariners
First Team to Score
3/29/26 7:20pm EDT | -140+110Bet |
Guardians
Mariners
Tie
1st Inning Winner
3/29/26 7:20pm EDT | +333+300-150Bet |
Guardians
Mariners
Tie
First 3 Innings Winner
3/29/26 7:20pm EDT | +165+130+260Bet |
Guardians
Mariners
To Extra Innings
3/29/26 7:20pm EDT | Yes +725No -1200Bet |
| BetMGM | |
Guardians
Mariners
1st Team to Score Will Win
3/29/26 7:20pm EDT | Yes -250No +190Bet |
Guardians
Total Runs
CLE at SEA 3/29/26 7:20pm EDT | 3.5 o -1053.5 u -125Bet |
Mariners
Total Runs
CLE at SEA 3/29/26 7:20pm EDT | 3.5 o -1453.5 u +110Bet |
Emerson Hancock
Strikeouts Thrown
CLE at SEA 3/29/26 7:20pm EDT | 3.5 o -1453.5 u +110Bet |
| BetMGM | |
Slade Cecconi
Strikeouts Thrown
CLE at SEA 3/29/26 7:20pm EDT | 4.5 o -1154.5 u -115Bet |
Cleveland Guardians & 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.
Cleveland Guardians World Series Odds|
Team | BetMGM |
 BetRivers |
|---|---|---|
| Guardians | +5500 Bet | +4000 Bet |
|
Team | BetMGM |
BetRivers |
|---|---|---|
| Mariners | +1200 Bet | +1300 Bet |
Cleveland Guardians & 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Cleveland Guardians | 9 | 6 | 0.600 | +2.5 | 4-2 | 5-4 | 57 | 54 | +3 | W1 | 6-4 |
| Seattle Mariners | 6 | 9 | 0.400 | +5.5 | 5-4 | 1-5 | 57 | 55 | +2 | W2 | 3-7 |
How to Bet on the Game
Time needed: 4 minutes.
How to Bet on the Cleveland Guardians 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 Sunday, March 29th, 2026 at 7:20 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 Cleveland Guardians vs Seattle Mariners Game.
Navigate to the sportsbook's MLB page. Next, look for live or upcoming matchups. Select the Cleveland Guardians 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 March 29, 2026 MLB Games
- Kansas City Royals vs Atlanta Braves - 3/29/26 1:35pm EDT
- Minnesota Twins vs Baltimore Orioles - 3/29/26 1:35pm EDT
- Texas Rangers vs Philadelphia Phillies - 3/29/26 1:35pm EDT
- Oakland Athletics vs Toronto Blue Jays - 3/29/26 1:37pm EDT
- Pittsburgh Pirates vs New York Mets - 3/29/26 1:40pm EDT
- Colorado Rockies vs Miami Marlins - 3/29/26 1:40pm EDT
- Boston Red Sox vs Cincinnati Reds - 3/29/26 1:40pm EDT
- Los Angeles Angels vs Houston Astros - 3/29/26 2:10pm EDT
- Chicago White Sox vs Milwaukee Brewers - 3/29/26 2:10pm EDT
- Tampa Bay Rays vs St. Louis Cardinals - 3/29/26 2:15pm EDT
- Washington Nationals vs Chicago Cubs - 3/29/26 2:20pm EDT