Cubs vs. Mariners Prediction, Odds, Picks - June 20

George Kirby will take the mound for the Seattle Mariners looking to slow down Ian Happ and the Chicago Cubs on Friday at 2:20 p.m. ET. The Mariners are +121 moneyline underdogs for this matchup against the favored Cubs (-144). Chicago is favored on the run line (-1.5). The over/under for the matchup is set at 9.5 runs.

Check out everything you need from a betting perspective on the Cubs-Mariners game, regarding the run line, moneyline and total, plus expert picks.

Keep up with MLB on FOX Sports.

Mariners’ Cal Raleigh hits league-leading 24th HR of season to take lead vs. Orioles

Cal Raleigh hit his league-leading 24th HR of the season that gave the Seattle Mariners' the lead against the Baltimore Orioles.

Cubs vs. Mariners Game Information & Odds

• When: Friday, June 20, 2025 at 2:20 p.m. ET
• Where: Wrigley Field in Chicago, Illinois
• How to watch on TV: MLB Network, MARQ, and ROOT Sports NW

Cubs vs. Mariners Prediction

• Score Prediction: Cubs 5, Mariners 4
• Total Prediction: Under 9.5 runs
• Win Probabilities: Cubs 58%, Mariners 42%

Cubs vs. Mariners Betting Insights

• The Cubs have won 36, or 70.6%, of the 51 games they've played as favorites this season.
• This season Chicago has won 24 of its 32 games, or 75%, when favored by at least -144 on the moneyline.
• The Cubs have a 59% chance to win this game based on the implied probability of the moneyline.
• The Mariners have been chosen as underdogs in 25 games this year and have walked away with the win 12 times (48%) in those games.
• This year, Seattle has won five of nine games when listed as at least +121 or worse on the moneyline.
• Sportsbooks have implied with the moneyline set for this matchup that the Mariners have a 45.2% chance of pulling out a win.

Cubs Recent Betting Performance

• The Cubs were the moneyline favorite in seven of their last 10 games, and went 5-2 in those matchups.
• In their last 10 matchups -- all had a set run total -- the Cubs and their opponents combined to hit the over on the total two times.
• The Cubs' ATS record is 4-6-0 over their past 10 games.

Cubs Recent Stats

Cubs Player Insights

• Kyle Tucker is hitting .279 with 15 doubles, four triples, 13 home runs and 49 walks.
• Of all hitters in MLB, Tucker ranks 32nd in homers and 32nd in RBI.
• Pete Crow-Armstrong has hit 20 home runs to pace his team.
• Crow-Armstrong is sixth in homers and fourth in RBI in the major leagues.
• Crow-Armstrong heads into this game looking for his third game in a row with a hit. During his last five outings he is batting .250 with two home runs, a walk and three RBIs.
• Seiya Suzuki paces the Cubs with 61 runs batted in.
• Nico Hoerner has a club-best .288 batting average.
• Hoerner is riding a five-game hitting streak into this one. In his last five games he is hitting .333 with a double and an RBI.

Cubs Team Props

Mariners Recent Betting Performance

• The Mariners have played as underdogs four times over their past 10 games and lost each of those contests.
• In their last 10 games with a total, the Mariners and their opponents are 4-5-1 when it comes to hitting the over.
• The Mariners have three wins against the spread in their last 10 chances.

Mariners Recent Stats

Mariners Player Insights

• Cal Raleigh has posted a team-leading 27 home runs and has driven in 60 runs.
• Raleigh's home run total places him first in the majors, and he is fourth in RBI.
• Julio Rodriguez has nine doubles, three triples, 10 home runs and 21 walks while batting .254.
• Rodriguez is currently 64th in homers and 83rd in RBI in the major leagues.
• J.P. Crawford leads the Mariners with a team-high batting average of .294.
• Jorge Polanco is hitting .254 with eight doubles, 11 home runs and 13 walks.

Mariners Team Props

Mariners’ Cal Raleigh hits league-leading 24th HR of season to take lead vs. Orioles

Cal Raleigh hit his league-leading 24th HR of the season that gave the Seattle Mariners' the lead against the Baltimore Orioles.

FOX Sports created this story using technology provided by Data Skrive and data from Sportradar.

Want great stories delivered right to your inbox? Create or log in to your FOX Sports account, follow leagues, teams and players to receive a personalized newsletter daily.

FOLLOW Follow your favorites to personalize your FOX Sports experience

Chicago Cubs

Seattle Mariners