Cubs vs Mariners Prediction, Odds, Moneyline, Spread & Over/Under for June 20

Odds updated as of 2:11 a.m.

MLB action on Friday includes the Chicago Cubs facing the Seattle Mariners.

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

Cubs vs Mariners Game Info

• Chicago Cubs (45-29) vs. Seattle Mariners (37-36)
• Date: Friday, June 20, 2025
• Time: 2:20 p.m. ET
• Venue: Wrigley Field -- Chicago, Illinois
• Coverage: MLB Network, MARQ, and ROOT Sports NW

Cubs vs Mariners Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: CHC: (-130) | SEA: (+110)
• Spread: CHC: -1.5 (+155) | SEA: +1.5 (-188)
• Total: 9.5 -- Over: (-106) | Under: (-114)

Cubs vs Mariners Probable Starting Pitchers

Probable Pitchers: Matthew Boyd (Cubs) - 6-3, 2.79 ERA vs George Kirby (Mariners) - 1-3, 5.96 ERA

This contest's pitching matchup is set, as the Cubs will send Matthew Boyd (6-3) to the mound, while George Kirby (1-3) will take the ball for the Mariners. Boyd and his team are 5-9-0 ATS this season when he starts. Boyd's team is 7-2 this season when he starts and they are the moneyline favorite. In each of Kirby's five starts that had a set spread, the Mariners failed to cover. The Mariners have always been the moneyline underdog when Kirby starts this season.

Cubs vs Mariners Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Cubs win (52.9%)

Cubs vs Mariners Moneyline

• Looking at the moneyline for Mariners-Cubs, Seattle is the underdog at +110, and Chicago is -130 playing at home.

Cubs vs Mariners Spread

• The Cubs are hosting the Mariners and are favored by 1.5 runs on the spread. The Cubs are +155 to cover the runline, with the Mariners being -188.

Cubs vs Mariners Over/Under

• The over/under for Cubs-Mariners on June 20 is 9.5. The over is -106, and the under is -114.

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Cubs vs Mariners Betting Trends

• The Cubs have been favorites in 47 games this season and have come away with the win 34 times (72.3%) in those contests.
• Chicago has a record of 28-9 in contests when bookmakers favor them by -130 or more on the moneyline.
• Contests with the Cubs have gone over the total set by oddsmakers in 37 of 72 chances this season.
• The Cubs are 37-35-0 against the spread in their 72 games with a line set by sportsbooks this season.
• The Mariners have compiled a 12-12 record in games they were the underdog on the moneyline (winning 50% of those games).
• Seattle has gone 7-5 when it has played as a moneyline underdog with odds of +110 or longer (58.3%).
• The Mariners have combined with opponents to go over the total 37 times this season for a 37-31-4 record against the over/under.
• The Mariners have put together a 31-41-0 record against the spread this season (covering 43.1% of the time).

Cubs Player Leaders

• Kyle Tucker leads Chicago with an OBP of .391 this season while batting .279 with 49 walks and 51 runs scored. He has a slugging percentage of .507.
• Among all qualified hitters, he is 39th in batting average, his on-base percentage ranks eighth, and he is 18th in slugging.
• Pete Crow-Armstrong has 77 hits, which ranks first among Chicago batters this season. He's batting .270 with 39 extra-base hits. He's also slugging .558 with an on-base percentage of .309.
• Among qualified hitters, his batting average places him 53rd, his on-base percentage 113th, and his slugging percentage sixth.
• Crow-Armstrong takes a two-game streak with at least one hit into this one. During his last five outings he is hitting .250 with two home runs, a walk and three RBIs.
• Seiya Suzuki has collected 72 base hits, an OBP of .312 and a slugging percentage of .527 this season.
• Nico Hoerner leads Chicago with a slugging percentage of .358, fueled by 18 extra-base hits.
• Hoerner has hit safely in five straight games. During his last five outings he is batting .333 with a double and an RBI.

Mariners Player Leaders

• Cal Raleigh has 71 hits, a team-high for the Mariners. He's batting .266 and slugging .622 with an on-base percentage of .373.
• Including all qualified hitters, he is 61st in batting average, while his on-base percentage is 21st and he is second in slugging.
• Julio Rodriguez is slugging .407 to lead his team. He has a batting average of .254 with an on-base percentage of .317.
• He is currently 85th in batting average, 100th in on-base percentage and 101st in slugging percentage among all qualified batters.
• J.P. Crawford has racked up an on-base percentage of .416, a team-high for the Mariners.
• Jorge Polanco is hitting .254 with eight doubles, 11 home runs and 13 walks.

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