Mariners vs Guardians Prediction, Odds, Moneyline, Spread & Over/Under for June 15

Odds updated as of 2:13 p.m.
The MLB schedule on Sunday includes the Seattle Mariners facing the Cleveland Guardians.
Here's what you need to know before checking out today's MLB odds and spreads on FanDuel Sportsbook.
Mariners vs Guardians Game Info
- Seattle Mariners (35-34) vs. Cleveland Guardians (35-34)
- Date: Sunday, June 15, 2025
- Time: 4:10 p.m. ET
- Venue: T-Mobile Park -- Seattle, Washington
- Coverage: MLB Network, ROOT Sports NW, and CLEG
Mariners vs Guardians Odds & Moneyline
- All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
- Moneyline: SEA: (-120) | CLE: (+102)
- Spread: SEA: -1.5 (+164) | CLE: +1.5 (-200)
- Total: 7.5 -- Over: (-122) | Under: (-100)
Mariners vs Guardians Probable Starting Pitchers
Probable Pitchers: Emerson Hancock (Mariners) - 2-2, 5.04 ERA vs Luis Ortiz (Guardians) - 3-7, 4.26 ERA
This contest's pitching matchup is set, as the Mariners will send Emerson Hancock (2-2) to the mound, while Luis Ortiz (3-7) will get the nod for the Guardians. When Hancock starts, his team is 7-4-0 against the spread this season. Hancock's team has won 33.3% of his starts when they are favored on the moneyline (1-2). When Ortiz starts, the Guardians have gone 5-8-0 against the spread. The Guardians have a 3-4 record in Ortiz's seven 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 (55.6%)
Mariners vs Guardians Moneyline
- Seattle is the favorite, -120 on the moneyline, while Cleveland is a +102 underdog on the road.
Mariners vs Guardians Spread
- The Guardians are at +1.5 on the runline against the Mariners. The Guardians are -200 to cover the spread, and the Mariners are +164.
Mariners vs Guardians Over/Under
- A total of 7.5 runs has been set for the Mariners-Guardians game on June 15, with the over available at -122 and the under at -100.
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Mariners vs Guardians Betting Trends
- The Mariners have won in 22, or 51.2%, of the 43 contests they have been named as odds-on favorites in this year.
- Seattle has a record of 19-17 in contests when sportsbooks favor them by -120 or more on the moneyline.
- The Mariners and their opponents have gone over in 36 of their 68 games with a total set by sportsbooks this season.
- The Mariners are 29-39-0 against the spread in their 68 games with a line set by sportsbooks this season.
- The Guardians have won 44.2% of the games this season they were the underdog on the moneyline (19-24).
- When it has played as a moneyline underdog with odds of +102 or longer, Cleveland has a 12-18 record (winning 40% of its games).
- The Guardians have had an over/under set by bookmakers 67 times, and have combined with opponents to go over the total in 31 of those games (31-33-3).
- The Guardians have put together a 33-34-0 record against the spread this season (covering 49.3% of the time).
Mariners Player Leaders
- Cal Raleigh leads Seattle with 66 hits, batting .263 this season with 38 extra-base hits. He has an on-base percentage of .376 and a slugging percentage of .622.
- Among qualified hitters in MLB, he ranks 68th in batting average, 21st in on-base percentage, and third in slugging.
- Julio Rodriguez leads Seattle in slugging percentage (.423) thanks to 22 extra-base hits. He's batting .263 with an on-base percentage of .324.
- Among all qualifying players, he is 68th in batting average, 88th in on-base percentage and 85th in slugging percentage.
- Rodriguez brings a five-game streak with at least one hit into this one. In his last five games he is batting .417 with three doubles and an RBI.
- J.P. Crawford has 70 hits this season and a team-best OBP of .410.
- Crawford has logged a hit or more in two games in a row. During his last five outings he is batting .474 with a double, five walks and an RBI.
- Jorge Polanco has been key for Seattle with 51 hits, an OBP of .314 plus a slugging percentage of .482.
- Polanco heads into this game on a nine-game hitting streak. During his last 10 games he is batting .316 with two doubles, a home run, three walks and five RBIs.
Guardians Player Leaders
- Jose Ramirez has a team-best OBP (.391) and slugging percentage (.552), while leading the Guardians in hits (83, while batting .329).
- Including all qualified hitters in MLB, he ranks fourth in batting average, ninth in on-base percentage and eighth in slugging percentage.
- Steven Kwan has 14 doubles, six home runs and 23 walks while hitting .302. He's slugging .426 with an on-base percentage of .364.
- Including all qualified players, he is 14th in batting average, 31st in on-base percentage and 81st in slugging percentage.
- Carlos Santana is batting .251 with six doubles, eight home runs and 32 walks.
- Kyle Manzardo is hitting .207 with eight doubles, two triples, 11 home runs and 23 walks.
Mariners vs Guardians Head to Head
- 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)
- 4/8/2023: 3-2 SEA (Favorite: Guardians, Spread: -1.5, Total: 8.5, Favorite Moneyline: -136, Underdog Moneyline: +116)
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