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

Odds updated as of 7:13 a.m.
The Seattle Mariners are among the MLB squads playing on Friday, versus the Cleveland Guardians.
Before checking out the MLB betting lines on FanDuel Sportsbook, we've got you covered, in terms of the vital info regarding this game.
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: (-156) | CLE: (+132)
- Spread: SEA: -1.5 (+114) | CLE: +1.5 (-137)
- Total: 8 -- Over: (-100) | Under: (-122)
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 answer the bell for the Guardians. When Kirby starts, his team is 6-9-0 against the spread this season. When Kirby starts a game and his team is the favorite on the moneyline, they have a record of 8-5. The Guardians are 11-12-0 ATS in Allen's 23 starts with a set spread. The Guardians are 5-9 in Allen's 14 starts this season that they were the underdog on the moneyline.
Mariners vs Guardians Prediction & Pick
All MLB win probability predictions and picks are according to numberFire.
Prediction: Mariners win (64.4%)
Mariners vs Guardians Moneyline
- Cleveland is a +132 underdog on the moneyline, while Seattle is a -156 favorite on the road.
Mariners vs Guardians Spread
- The Mariners are at the Guardians and are favored by 1.5 runs (+114 to cover) on the runline. Cleveland is -137 to cover.
Mariners vs Guardians Over/Under
- The over/under for Mariners-Guardians on Aug. 29 is 8. The over is -100, and the under is -122.
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Mariners vs Guardians Betting Trends
- The Mariners have been victorious in 51, or 57.3%, of the 89 contests they have been chosen as favorites in this season.
- This season Seattle has come away with a win 21 times in 31 chances when named as a favorite of at least -156 on the moneyline.
- The Mariners and their opponents have hit the over in 68 of their 129 games with a total set by oddsmakers this season.
- In 129 games with a line this season, the Mariners have a mark of 55-74-0 against the spread.
- The Guardians have a 30-42 record in games they were listed as the moneyline underdog (winning 41.7% of those games).
- Cleveland has a record of 8-14 when playing as a moneyline underdog with odds of +132 or longer (36.4%).
- In the 129 games oddsmakers have set an over/under for the Guardians, they have combined with opponents to go over the total 58 times (58-66-5).
- The Guardians have collected a 67-62-0 record ATS this season.
Mariners Player Leaders
- Cal Raleigh has 120 hits, which leads 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 all qualifying hitters in MLB, he ranks 110th in batting average, 39th in on-base percentage, and third in slugging.
- Julio Rodriguez has hit 25 homers this season while driving in 73 runs. He's batting .263 this season and slugging .458 with an on-base percentage of .316.
- Among all qualified hitters, he is 65th in batting average, 102nd in on-base percentage and 53rd in slugging percentage.
- Rodriguez has picked up at least one hit in four straight games. During his last five outings he is batting .316 with two walks and two RBIs.
- Eugenio Suarez is batting .237 with a .549 slugging percentage and 104 RBI this year.
- Suarez heads into this matchup with two games in a row with at least one hit. In his last five games he is batting .200 with two home runs, five walks and six RBIs.
- Josh Naylor has been key for Seattle with 130 hits, an OBP of .350 plus a slugging percentage of .449.
- Naylor enters this game on a six-game hitting streak. In his last 10 outings he is batting .250 with two doubles, a home run, two walks and four RBIs.
Guardians Player Leaders
- Jose Ramirez has racked up 137 hits with a .358 on-base percentage and a .504 slugging percentage, all club-bests for the Guardians. He's batting .284.
- He is 25th in batting average, 29th in on-base percentage and 19th in slugging percentage among all qualified hitters in MLB.
- Steven Kwan has 22 doubles, a triple, 10 home runs and 45 walks while hitting .271. He's slugging .378 with an on-base percentage of .331.
- Including all qualified hitters, he is 41st in batting average, 76th in on-base percentage and 130th in slugging percentage.
- Kyle Manzardo is hitting .231 with 14 doubles, two triples, 21 home runs and 40 walks.
- Angel Martinez is batting .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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