Mariners vs Guardians Prediction, Odds, Moneyline, Spread & Over/Under for Aug. 29

Odds updated as of 6:14 p.m.

MLB action on Friday includes the Seattle Mariners facing the Cleveland Guardians.

Before you do any MLB betting on this game at FanDuel Sportsbook, here's what you need to know.

Mariners vs Guardians Game Info

• Seattle Mariners (72-62) vs. Cleveland Guardians (66-66)
• Date: Friday, August 29, 2025
• Time: 7:10 p.m. ET
• Venue: Progressive Field -- Cleveland, Ohio
• Coverage: MLB Network, CLEG, and ROOT Sports NW

Mariners vs Guardians Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: SEA: (-158) | CLE: (+134)
• Spread: SEA: -1.5 (+110) | CLE: +1.5 (-132)
• Total: 7.5 -- Over: (-122) | Under: (-100)

Mariners vs Guardians Probable Starting Pitchers

Probable Pitchers: George Kirby (Mariners) - 8-6, 4.05 ERA vs Logan Allen (Guardians) - 7-10, 4.35 ERA

This contest's pitching matchup is set, as the Mariners will send George Kirby (8-6) to the mound, while Logan Allen (7-10) will take the ball for the Guardians. Kirby and his team are 6-9-0 ATS this season when he starts. Kirby's team has been victorious in 61.5% of the games he's started as the moneyline favorite with a record of 8-5. The Guardians have an 11-12-0 ATS record in Allen's 23 starts that had a set spread. The Guardians have been the moneyline underdog in 14 of Allen's starts this season, and they went 5-9 in those games.

Mariners vs Guardians Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Mariners win (64.8%)

Mariners vs Guardians Moneyline

• Cleveland is a +134 underdog on the moneyline, while Seattle is a -158 favorite on the road.

Mariners vs Guardians Spread

• The Mariners are at the Guardians and are favored by 1.5 runs on the spread. The Mariners are +110 to cover the runline, with the Guardians being -132.

Mariners vs Guardians Over/Under

• Mariners versus Guardians, on Aug. 29, has an over/under of 7.5, with the over being -122 and the under -100.

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

Mariners vs Guardians Betting Trends

• The Mariners have won in 51, or 57.3%, of the 89 contests they have been named as odds-on favorites in this year.
• Seattle has a record of 21-9 when favored by -158 or more this year.
• The Mariners and their opponents have gone over in 68 of their 129 games with a total set by sportsbooks this season.
• The Mariners have an against the spread mark of 55-74-0 in 129 games with a line this season.
• The Guardians have won 41.7% of the games this season they were the moneyline underdog (30-42).
• When it has played as a moneyline underdog with odds of +134 or longer, Cleveland has an 8-14 record (winning just 36.4% of its games).
• The Guardians have played in 129 games with an over/under set, and have combined with their opponents to go over the total 58 times (58-66-5).
• The Guardians have collected a 67-62-0 record ATS this season (covering 51.9% of the time).

Mariners Player Leaders

• Cal Raleigh has 120 hits, which ranks first among Seattle hitters this season, while batting .244 with 69 extra-base hits. He has an on-base percentage of .351 and a slugging percentage of .587.
• Among the qualified hitters in the majors, his batting average ranks 110th, his on-base percentage ranks 39th, and he is third in slugging.
• Julio Rodriguez leads Seattle in slugging percentage (.458) thanks to 53 extra-base hits. He's batting .263 with an on-base percentage of .316.
• Among qualified hitters, his batting average ranks him 65th, his on-base percentage 102nd, and his slugging percentage 53rd.
• Rodriguez has picked up a hit in four games in a row. In his last five games he is hitting .316 with two walks and two RBIs.
• Josh Naylor has 130 hits this season and has a slash line of .286/.350/.449.
• Naylor brings a six-game hitting streak into this matchup. During his last 10 outings he is batting .250 with two doubles, a home run, two walks and four RBIs.
• Eugenio Suarez is batting .237 with a .309 OBP and 104 RBI for Seattle this season.
• Suarez takes a two-game hitting streak into this game. During his last five outings he is hitting .200 with two home runs, five walks and six RBIs.

Guardians Player Leaders

• Jose Ramirez has totaled 137 hits with a .358 on-base percentage and a .504 slugging percentage, all club-highs for the Guardians. He's batting .284.
• Including all the qualified hitters in the big leagues, he is 25th in batting average, 29th in on-base percentage and 19th in slugging percentage.
• Steven Kwan is batting .271 with 22 doubles, a triple, 10 home runs and 45 walks. He's slugging .378 with an on-base percentage of .331.
• Including all qualified hitters, he ranks 41st in batting average, 76th in on-base percentage and 130th in slugging percentage.
• Kyle Manzardo has 14 doubles, two triples, 21 home runs and 40 walks while hitting .231.
• Angel Martinez is hitting .225 with 21 doubles, a triple, 10 home runs and 16 walks.

Mariners vs Guardians Head to Head

• 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)
• 6/13/2025: 7-2 SEA (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -112, Underdog Moneyline: -104)
• 6/20/2024: 6-3 CLE (Favorite: Guardians, Spread: -1.5, Total: 8, Favorite Moneyline: -126, Underdog Moneyline: +108)
• 6/19/2024: 8-0 CLE (Favorite: Guardians, Spread: -1.5, Total: 7.5, Favorite Moneyline: -156, Underdog Moneyline: +132)
• 6/18/2024: 8-5 SEA (Favorite: Guardians, Spread: -1.5, Total: 8.5, Favorite Moneyline: -134, Underdog Moneyline: +114)
• 4/3/2024: 8-0 CLE (Favorite: Mariners, Spread: -1.5, Total: 7.5, Favorite Moneyline: -154, Underdog Moneyline: +130)
• 4/2/2024: 5-2 CLE (Favorite: Mariners, Spread: -1.5, Total: 7, Favorite Moneyline: -120, Underdog Moneyline: +102)
• 4/1/2024: 5-4 SEA (Favorite: Guardians, Spread: -1.5, Total: 7.5, Favorite Moneyline: -112, Underdog Moneyline: -104)
• 4/9/2023: 7-6 CLE (Favorite: Mariners, Spread: -1.5, Total: 8, Favorite Moneyline: -132, Underdog Moneyline: +112)

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