Mariners vs Guardians Prediction, Odds, Moneyline, Spread & Over/Under for June 27

Odds updated as of 1:12 a.m.

The Seattle Mariners versus the Cleveland Guardians is on the MLB schedule for Saturday.

All the information you need to make smart wagers on this matchup at FanDuel Sportsbook can be found below. Check out all of the latest MLB betting lines here.

Mariners vs Guardians Game Info

• Seattle Mariners (42-41) vs. Cleveland Guardians (42-40)
• Date: Saturday, June 27, 2026
• Time: 7:10 p.m. ET
• Venue: Progressive Field -- Cleveland, Ohio
• Coverage: CleGuardians.TV and Mariners.TV

Mariners vs Guardians Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: SEA: (-148) | CLE: (+126)
• Spread: SEA: -1.5 (+114) | CLE: +1.5 (-137)
• Total: 8 -- Over: (-106) | Under: (-114)

Mariners vs Guardians Probable Starting Pitchers

Probable Pitchers: Logan Gilbert (Mariners) - 6-4, 3.29 ERA vs Slade Cecconi (Guardians) - 3-6, 4.48 ERA

The probable pitchers are Logan Gilbert (6-4) for the Mariners and Slade Cecconi (3-6) for the Guardians. When Gilbert starts, his team is 7-9-0 against the spread this season. Gilbert's team has won 71.4% of his starts when they are favored on the moneyline (10-4). The Guardians have gone 7-7-0 ATS in Cecconi's 14 starts with a set spread. The Guardians have a 2-9 record in Cecconi's 11 starts this season when they were the moneyline underdog.

Mariners vs Guardians Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Mariners win (61.3%)

Mariners vs Guardians Moneyline

• Seattle is the favorite, -148 on the moneyline, while Cleveland is a +126 underdog despite being at home.

Mariners vs Guardians Spread

• The Guardians are +1.5 on the run line against the Mariners. The Guardians are -137 to cover, and the Mariners are +114.

Mariners vs Guardians Over/Under

• Mariners versus Guardians, on June 27, has an over/under of 8, with the over being -106 and the under -114.

Bet on Seattle Mariners vs. Cleveland Guardians on FanDuel today!

Mariners vs Guardians Betting Trends

• The Mariners have been victorious in 38, or 52.1%, of the 73 contests they have been chosen as favorites in this season.
• Seattle has a record of 12-7 when favored by -148 or more this year.
• The Mariners' games have gone over the total in 38 of their 82 opportunities.
• The Mariners have an against the spread record of 30-52-0 in 82 games with a line this season.
• The Guardians have won 52.8% of the games this season they were the underdog on the moneyline (19-17).
• Cleveland has a 7-6 record (winning 53.8% of its games) when playing as a moneyline underdog of +126 or longer.
• The Guardians have had an over/under set by oddsmakers 78 times, and have combined with opponents to go over the total in 38 of those games (38-40-0).
• The Guardians have covered 50% of their games this season, going 39-39-0 against the spread.

Mariners Player Leaders

• Julio Rodriguez has an OPS of .728, fueled by an OBP of .307 and a team-best slugging percentage of .421 this season. He has a .247 batting average.
• Among all qualified hitters in baseball, he is 91st in batting average, 120th in on-base percentage, and 84th in slugging.
• Rodriguez has recorded at least one hit in three games in a row. In his last five games he is hitting .250 with a walk and two RBIs.
• Randy Arozarena has 78 hits and an OBP of .372, both of which lead the Mariners this season. He's batting .285 and slugging .438.
• His batting average ranks 24th among qualified players, his on-base percentage 23rd, and his slugging percentage 70th.
• Arozarena has picked up at least one hit in two straight games. During his last five outings he is hitting .200 with a double and two walks.
• Josh Naylor has collected 76 base hits, an OBP of .315 and a slugging percentage of .368 this season.
• Cole Young has been key for Seattle with 75 hits, an OBP of .314 plus a slugging percentage of .368.

Guardians Player Leaders

• Brayan Rocchio has put up a team-best OBP (.342) and slugging percentage (.386). He's batting .269.
• Including all qualified hitters, he is 49th in batting average, while his on-base percentage ranks 59th and he is 109th in slugging.
• Travis Bazzana is hitting .255 with 11 doubles, a triple, seven home runs and 26 walks. He's slugging .436 with an on-base percentage of .350.
• Steven Kwan is hitting .213 with nine doubles, a home run and 39 walks.
• Kyle Manzardo is hitting .233 with seven doubles, a triple, nine home runs and 28 walks.

Mariners vs Guardians Head to Head

• 6/26/2026: 3-1 SEA (Favorite: Guardians, Spread: -1.5, Total: 7.5, Favorite Moneyline: -108, Underdog Moneyline: -108)
• 3/29/2026: 8-0 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -144, Underdog Moneyline: +122)
• 3/28/2026: 6-5 CLE (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -178, Underdog Moneyline: +150)
• 3/27/2026: 5-1 SEA (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -178, Underdog Moneyline: +150)
• 3/26/2026: 6-4 CLE (Favorite: Mariners, Spread: -1.5, Total: 6.5, Favorite Moneyline: -188, Underdog Moneyline: +158)
• 8/31/2025: 4-2 SEA (Favorite: Mariners, Spread: -1.5, Total: 8, Favorite Moneyline: -116, Underdog Moneyline: -102)
• 8/30/2025: 4-3 CLE (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -154, Underdog Moneyline: +130)
• 8/29/2025: 5-4 CLE (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -162, Underdog Moneyline: +136)
• 6/15/2025: 6-0 SEA (Favorite: Mariners, Spread: -1.5, Total: 8, Favorite Moneyline: -124, Underdog Moneyline: +106)
• 6/14/2025: 4-3 SEA (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -136, Underdog Moneyline: +116)

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