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

Odds updated as of 2:11 p.m.

The Chicago Cubs versus the Seattle Mariners is on the MLB schedule for Friday.

Before checking out the MLB betting lines on FanDuel Sportsbook, we've got you covered, in terms of the most important info regarding this game.

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: (-144) | SEA: (+122)
• Spread: CHC: -1.5 (+138) | SEA: +1.5 (-166)
• Total: 9.5 -- Over: (-122) | Under: (-100)

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

The probable pitchers are Matthew Boyd (6-3) for the Cubs and George Kirby (1-3) for the Mariners. Boyd's team is 5-9-0 against the spread in his starts this season. Boyd's team has a record of 7-2 this season when he starts and they are the favorite on the moneyline. The Mariners have failed to cover all of the five games Kirby has started that had a spread set by oddsmakers. The Mariners have not been a 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 (55.7%)

Cubs vs Mariners Moneyline

• The moneyline numbers for Cubs vs. Mariners reveal Chicago as the favorite (-144) and Seattle as the underdog (+122) on the road.

Cubs vs Mariners Spread

• The Mariners are at +1.5 on the runline against the Cubs. The Mariners are -166 to cover the spread, and the Cubs are +138.

Cubs vs Mariners Over/Under

• An over/under of 9.5 has been set for Cubs-Mariners on June 20, with the over being -122 and the under -100.

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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.
• This season Chicago has been victorious 21 times in 28 chances when named as a favorite of at least -144 on the moneyline.
• The Cubs' games have gone over the total in 37 of their 72 opportunities.
• The Cubs are 37-35-0 against the spread in their 72 games with a line set by sportsbooks this season.
• The Mariners have won 50% of the games this season they were the underdog on the moneyline (12-12).
• Seattle is 3-4 (winning 42.9% of its games) when it has played as a moneyline underdog of +122 or longer.
• The Mariners have played in 72 games with a set over/under, and have combined with their opponents to go over the total 37 times (37-31-4).
• The Mariners have gone 31-41-0 against the spread this season.

Cubs Player Leaders

• Kyle Tucker leads Chicago in OBP (.391) this season, fueled by 76 hits. He has a .279 batting average and a slugging percentage of .507.
• Among qualified batters in MLB, his batting average ranks 39th, his on-base percentage ranks eighth, and he is 18th in slugging.
• Pete Crow-Armstrong leads Chicago in total hits (77) this season while batting .270 with 39 extra-base hits. He's slugging .558 with an on-base percentage of .309.
• Among all qualified hitters, he ranks 53rd in batting average, 113th in on-base percentage and sixth in slugging percentage.
• Crow-Armstrong enters this game looking to extend his two-game hit streak. During his last five outings he is batting .250 with two home runs, a walk and three RBIs.
• Seiya Suzuki has 72 hits this season and has a slash line of .256/.312/.527.
• Nico Hoerner leads Chicago in slugging percentage (.358) thanks to 18 extra-base hits.
• Hoerner heads into this matchup on a five-game hitting streak. In his last five games 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 the qualified hitters in MLB, his batting average is 61st, his on-base percentage ranks 21st, and he is second in slugging.
• Julio Rodriguez leads his team with a .407 slugging percentage. He has a batting average of .254 with an on-base percentage of .317.
• Including all qualified hitters, he is 85th in batting average, 100th in on-base percentage and 101st in slugging percentage.
• J.P. Crawford has accumulated an on-base percentage of .416, a team-high for the Mariners.
• Jorge Polanco is batting .254 with eight doubles, 11 home runs and 13 walks.

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