Guardians vs Marlins Prediction, Odds, Moneyline, Spread & Over/Under for Aug. 12

Odds updated as of 2:11 a.m.

The Cleveland Guardians are among the MLB squads in action on Tuesday, versus the Miami Marlins.

Here's everything you need to know before checking out today's MLB odds and spreads on FanDuel Sportsbook.

Guardians vs Marlins Game Info

• Cleveland Guardians (61-56) vs. Miami Marlins (57-61)
• Date: Tuesday, August 12, 2025
• Time: 6:40 p.m. ET
• Venue: Progressive Field -- Cleveland, Ohio
• Coverage: CLEG and FDSFL

Guardians vs Marlins Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: CLE: (-136) | MIA: (+116)
• Spread: CLE: -1.5 (+146) | MIA: +1.5 (-178)
• Total: 8.5 -- Over: (-128) | Under: (+104)

Guardians vs Marlins Probable Starting Pitchers

Probable Pitchers: Logan Allen (Guardians) - 7-9, 3.96 ERA vs Janson Junk (Marlins) - 6-2, 3.97 ERA

The Guardians will give the nod to Logan Allen (7-9) versus the Marlins and Janson Junk (6-2). Allen's team is 10-10-0 against the spread in his starts this season. Allen's team has a record of 5-2 this season when he starts and they are the favorite on the moneyline. The Marlins have a 7-1-0 record against the spread in Junk's starts. The Marlins have been the underdog on the moneyline in seven of Junk's starts this season, and they went 5-2 in those games.

Guardians vs Marlins Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Marlins win (54.6%)

Guardians vs Marlins Moneyline

• Cleveland is a -136 favorite on the moneyline, while Miami is a +116 underdog on the road.

Guardians vs Marlins Spread

• The Marlins are +1.5 on the spread (-178 to cover), and Cleveland is +146 to cover the runline.

Guardians vs Marlins Over/Under

• Guardians versus Marlins, on Aug. 12, has an over/under of 8.5, with the over being -128 and the under +104.

Bet on Cleveland Guardians vs. Miami Marlins on FanDuel today!

Guardians vs Marlins Betting Trends

• The Guardians have been favorites in 48 games this season and have come away with the win 31 times (64.6%) in those contests.
• Cleveland has a record of 13-5 in contests when bookmakers favor them by -136 or more on the moneyline.
• The Guardians and their opponents have gone over the total this season in 52 of their 114 opportunities.
• The Guardians have posted a record of 60-54-0 against the spread this season.
• The Marlins have won 48.4% of the games this season they were the moneyline underdog (46-49).
• Miami is 34-37 (winning 47.9% of its games) when it has played as a moneyline underdog of +116 or longer.
• The Marlins have played in 114 games with an over/under set, and have combined with opponents to go over the total 53 times (53-61-0).
• The Marlins have gone 67-47-0 ATS this season.

Guardians Player Leaders

• Jose Ramirez leads Cleveland with 125 hits and an OBP of .365, plus a team-best slugging percentage of .509. He's batting .289.
• Among qualifying batters in MLB, he is 18th in batting average, 21st in on-base percentage, and 15th in slugging.
• Steven Kwan is batting .278 with 21 doubles, a triple, nine home runs and 41 walks, while slugging .391 with an on-base percentage of .339.
• He ranks 32nd in batting average, 61st in on-base percentage and 123rd in slugging in the major leagues.
• Carlos Santana has collected 86 base hits, an OBP of .319 and a slugging percentage of .340 this season.
• Kyle Manzardo has been key for Cleveland with 79 hits, an OBP of .323 plus a slugging percentage of .485.
• Manzardo takes a four-game hitting streak into this game. In his last five games he is hitting .462 with a double, two home runs, three walks and four RBIs.

Marlins Player Leaders

• Kyle Stowers has racked up 110 hits with a .364 on-base percentage, leading the Marlins in both categories. He's batting .285 and slugging .541.
• Including all qualifying hitters in the majors, his batting average places him 23rd, his on-base percentage is 22nd, and he is eighth in slugging.
• Xavier Edwards paces his team with a .368 slugging percentage. He has a batting average of .303 with an on-base percentage of .362.
• His batting average ranks seventh among all qualified players, his on-base percentage ranks 26th, and he is 140th in slugging.
• Otto Lopez has 15 doubles, 11 home runs and 37 walks while hitting .244.
• Agustin Ramirez has 24 doubles, a triple, 17 home runs and 24 walks while hitting .237.

Sign up for FanDuel Sportsbook and FanDuel Daily Fantasy today!