• The Mariners are -120 favorites vs the Cubs
• Cubs vs Mariners Over / Under today: 7.5 Runs
• Cubs / Mariners TV Channel: FOX

The Chicago Cubs (+100) visit T-Mobile Park to take on the Seattle Mariners (-120) on August 22, 2026. First pitch is scheduled for 7:15 pm in Seattle, WA.

This season, the Cubs are 74-55 against the spread (ATS), while the Mariners are 49-79 ATS.

Cubs vs Mariners Starting Pitchers Today:

• Cubs starting pitcher: David Peterson 7-7, 5.31 ERA
• Mariners starting pitcher: Kade Anderson 0-0, 0.00 ERA

Cubs vs. Mariners Odds, Run Line, Over/Under & Moneyline

Cubs vs Mariners Prediction for Today’s Game

Based on recent trends the model predicts the Mariners will win Saturday‘s MLB game with 51.0% confidence, factoring in game simulations, recent player performances, starting pitchers and injuries.

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We’ve highlighted some favorite MLB player prop bets for Cubs players for Saturday‘s game, looking at profitable historical betting trends:

Best Cubs Player Prop Bets Today:

• Tyrone Taylor has hit the Home Runs Over in 3 of his last 6 away games (+21.50 Units / 358% ROI)
• Pete Crow-Armstrong has hit the Singles Under in 20 of his last 25 games (+12.60 Units / 38% ROI)
• Pete Crow-Armstrong has hit the RBIs Over in 10 of his last 15 away games (+11.05 Units / 74% ROI)
• Michael Busch has hit the Walks Under in 13 of his last 15 away games (+9.30 Units / 34% ROI)
• Pete Crow-Armstrong has hit the Hits Under in 11 of his last 15 games (+8.40 Units / 31% ROI)

And here are some favorite MLB player prop bets for Mariners players for Saturday‘s game, looking at profitable historical betting trends:

Best Mariners Player Prop Best Bets Today:

• Cal Raleigh has hit the Runs Under in 21 of his last 25 games (+13.55 Units / 31% ROI)
• Dominic Canzone has hit the RBIs Under in his last 10 games at home (+10.00 Units / 41% ROI)
• Cal Raleigh has hit the Hits Runs and RBIs Under in 18 of his last 25 games (+9.90 Units / 29% ROI)
• Randy Arozarena has hit the Home Runs Over in 3 of his last 10 games (+9.50 Units / 95% ROI)
• Cal Raleigh has hit the Total Bases Under in 17 of his last 25 games at home (+9.45 Units / 33% ROI)

Cubs Best Bets Today:

• The Chicago Cubs have covered the Run Line in 30 of their last 50 games (+16.25 Units / 28% ROI)
• The Chicago Cubs have hit the Moneyline in 21 of their last 30 away games (+11.55 Units / 32% ROI)
• The Chicago Cubs have hit the Team Total Over in 21 of their last 30 away games (+10.50 Units / 29% ROI)
• The Chicago Cubs have hit the 1st Five Innings (F5) Team Total Over in 19 of their last 30 away games (+6.40 Units / 17% ROI)
• The Chicago Cubs have hit the Game Total Over in 9 of their last 13 away games (+5.70 Units / 40% ROI)

Mariners Best Bets Today:

• The Seattle Mariners have hit the 1st Five Innings (F5) Team Total Under in 28 of their last 45 games at home (+9.70 Units / 18% ROI)
• The Seattle Mariners have hit the Game Total Over in 26 of their last 45 games (+9.45 Units / 19% ROI)
• The Seattle Mariners have hit the Team Total Under in 27 of their last 45 games at home (+8.85 Units / 18% ROI)
• The Seattle Mariners have covered the 1st Five Innings (F5) Run Line in 7 of their last 10 games (+3.55 Units / 29% ROI)
• The Seattle Mariners have hit the Moneyline in 5 of their last 8 games (+2.60 Units / 32% ROI)

Cubs Against the Spread (ATS) Record

Against the spread this season, the Cubs are 61-66 against the Run Line (-1.45 Units / -0.96% ROI).

• 74-55 when betting on the Moneyline for +3.75 Units / 2.15% ROI
• 69-58 when betting on the total runs Over for +5.9 Units / 4.15% ROI
• 58-69 when betting on the total runs Under for -17.35 Units / -12.22% ROI

Mariners Against the Spread (ATS) Record

Against the spread this season, the Mariners are 49-79 against the Run Line (-26.2 Units / -17.68% ROI).

• 61-68 when betting on the Moneyline for -23.1 Units / -13.49% ROI
• 65-57 when betting on the total runs Over for +2.5 Units / 1.76% ROI
• 57-65 when betting on the total runs Under for -14.2 Units / -10.02% ROI

Mariners vs Cubs Home Run Prop Bets Today

Mariners vs Cubs Total Hits Prop Bets Today

Mariners vs Cubs Strikeout Prop Bets Today

Cubs Keys to the Game vs. the Mariners

The Cubs are 18-22 (.450) when allowing 10 or more hits this season — best in MLB.

The Cubs are 6-51 (.105) when trailing entering the 9th inning this season — best in MLB.

The Cubs are 28-28 (.500) when allowing 2 or more home runs this season — best in MLB.

The Cubs are 33-2 (.943) when they’ve had 5 or more XBH this season — 2nd best in MLB.

Mariners Keys to the Game vs. the Cubs

The Mariners are just 1-58 (.017) when trailing entering the 8th inning this season — 2nd lowest in MLB.

The Mariners are just 17-20 (.459) when they’ve scored in the first inning this season — tied for lowest in MLB.

The Mariners are just 13-30 (.302) vs the top 10 runs allowed teams this season Today, they face Cubs (12th fewest runs allowed).

The Mariners are just 1-61 (.016) when trailing entering the 9th inning this season — tied for lowest in MLB.

Cubs Hitting Stats & Trends

The Cubs are batting .268 against LHP this season — 2nd best in MLB.

Cubs hitters have an OBP of .356 (1,353 PA’s) against LHP this season — best in MLB.

Cubs hitters have drawn walks in 11% of their PA’s this season — tied for best in MLB.

Cubs hitters have an OPS of .805 (1,353 PA’s) against LHP this season — best in MLB.

Mariners Hitting Stats & Trends

Mariners hitters are slugging just .479 on the first pitch of at-bats this season — lowest in MLB.

The Mariners are batting just .216 against LHP this season — lowest in MLB.

The Mariners are batting just .150 with two-strikes this season — tied for 2nd lowest in MLB.

Mariners hitters have an OPS of just .684 (4,822 PA’s) this season — 2nd lowest in MLB.

Cubs Pitching Stats & Trends

Opponents have a groundball batting average of just .205 against Cubs pitchers with runners on base this season — best in MLB.

In games when their opponents have scored three or more runs in an inning, the Cubs have still managed to win 38% of the time this season — highest in MLB.

Cubs pitchers have picked-off 20 runners from first base this season — most in MLB.

Cubs pitchers have picked-off 20 runners this season — most in MLB.

Mariners Pitching Stats & Trends

Mariners pitchers have a first-pitch strike rate of 66% this season — highest in MLB.

Mariners pitchers have walked 7% of batters this season — tied for best in MLB.

Mariners pitchers have walked 6% of batters when facing the leadoff batter in the inning this season — best in MLB.

The Mariners pitchers have allowed their opponents to score first in just 41% of their games at home this season — 2nd lowest in MLB.

More MLB Reading:

• Home Run Predictions Today
• Best NRFI Bets Today
• Strikeout Props Today
• MLB Starting Pitchers Today

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