The Mariners will play the Guardians on Sunday, June 28th, 2026. Your timezone's first pitch time is 1:40 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
- Matchup Stats
- Best Odds
- Interactive Odds Example
- Prop Bets
- Team Futures Odds
- Team Pages
- Team Standings
- Other Games Today
Key Matchup Stats
- SportsBetting3.com Power Rankings - As the 2026 season continues, the Seattle Mariners possess a 92.33 SportsBetting3.com power ranking. The Cleveland Guardians now have a 91.33 power ranking. Teams with a higher SportsBetting3.com power ranking will typically be moneyline favorites.
- Visiting Seattle Mariners - The Seattle Mariners head into this matchup with a 19-22 record as a visiting team. This standing ranks them 7th Overall for visiting team wins.
- Home Cleveland Guardians - The Cleveland Guardians will throw the first pitch possessing a 19-17 home team record. That puts them 9th for home team wins in the Overall MLB standings.
- Runs Scored - Seattle Mariners batters have produced 331 runs, ranking them 21st Overall, with the Cleveland Guardians ranking 24th (320) for runs scored.
- Runs Allowed - Seattle Mariners pitchers and fielders have allowed 327 runs, ranking them 23rd Overall for runs allowed. Meanwhile, the Cleveland Guardians now rank 22nd Overall, allowing 328 runs.
- Team Streaks - The Seattle Mariners have lost their last 2 games. Their opponent, the Cleveland Guardians won their last game.
- Team Records - Let's review each team's records. The Seattle Mariners have a 41-41 Overall record (0.0 GB American West Division), with the Cleveland Guardians notching a 42-39 Overall standing (0.0 GB American Central Division).
Best Mariners at Guardians Odds
| Underdog Seattle Mariners | Favorite Cleveland Guardians |
|---|---|
| Over | Under |
|---|---|
| Underdog Cleveland Guardians | Favorite Seattle Mariners |
|---|---|
Matchup Odds FAQs
The Cleveland Guardians are the -115 moneyline favorite at BetMGM and the Seattle Mariners are the -105 moneyline underdog at BetMGM.
The best over line is 7.5 +100 runs at BetMGM, which means you risk $100 to win $100 betting the over. The best under line is 7.5 -120 runs at BetMGM, and that means you risk $120 to win $100 betting the under.
The Seattle Mariners are -1.5 +165 run line favorites at BetMGM, while the Cleveland Guardians are +1.5 -200 run line underdogs at BetMGM.
MLB Odds Example
|
Game |
 BetMGMBet |
|---|---|
Mariners
Guardians
6/28/26 1:40pm EDT | -105-115 |
- Seattle Mariners bettors risk $100 to win $95.24 at -105 odds. The implied probability for Seattle Mariners is 51.22%.
- Cleveland Guardians bettors risk $100 to win $86.96 at -115 odds. The implied probability for Cleveland Guardians is 53.49%.
Seattle Mariners at Cleveland Guardians Prop Bets
| BetMGM Bet |
|
|---|---|
Mariners
Guardians
6/28/26 1:40pm EDT | Pending BetMGM |
Seattle Mariners & Cleveland Guardians 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 | +1000 Bet |
|
Team | BetMGM |
|---|---|
| Guardians | +3500 Bet |
Seattle Mariners & Cleveland Guardians 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 | 42 | 39 | 0.519 | +10.0 | 19-17 | 23-22 | 320 | 328 | -8 | W1 | 4-6 |
| Seattle Mariners | 41 | 41 | 0.500 | +11.5 | 22-19 | 19-22 | 331 | 327 | +4 | L2 | 4-6 |
How to Bet on the Game
Time needed: 4 minutes.
How to Bet on the Seattle Mariners vs Cleveland Guardians 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, June 28th, 2026 at 1:40 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 Cleveland Guardians Game.
Navigate to the sportsbook's MLB page. Next, look for live or upcoming matchups. Select the Seattle Mariners vs Cleveland Guardians 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 June 28, 2026 MLB Games
- Cincinnati Reds vs Pittsburgh Pirates - 6/28/26 1:35pm EDT
- Washington Nationals vs Baltimore Orioles - 6/28/26 1:35pm EDT
- Texas Rangers vs Toronto Blue Jays - 6/28/26 1:37pm EDT
- Houston Astros vs Detroit Tigers - 6/28/26 1:40pm EDT
- Arizona Diamondbacks vs Tampa Bay Rays - 6/28/26 1:40pm EDT
- Kansas City Royals vs Chicago White Sox - 6/28/26 2:10pm EDT
- Atlanta Braves vs San Francisco Giants - 6/28/26 4:05pm EDT
- Los Angeles Dodgers vs San Diego Padres - 6/28/26 4:10pm EDT
- New York Yankees vs Boston Red Sox - 6/28/26 7:20pm EDT