Cubs vs. Mariners: MLB Prediction & Analysis

Our detailed prediction and analysis for the Cubs vs. Mariners MLB game on Sunday, August 23, 2026 is featured below. Drawing from 10,000 game simulations, we provide expert picks, betting odds, and insights.
FINAL
MLB
FINAL
MLB sport icon
MLB
Cubs
Shota Imanaga 8-9, 3.77 ERA
19
2
T-Mobile Park
Mariners
Bryce Miller 4-7, 3.71 ERA
T-Mobile Park
1 2 3 4 5 6 7 8 9 RHE
Cubs
0 0 5 0 1 1 0 9 3 19 17 1
Mariners
1 1 0 0 0 0 0 0 0 2 7 1
Live Probabilities
Win %
  • Cubs
    100%
  • Mariners
    0%
Win Probability
Baseball infield diamond diagram
Last At Bat
Outs
Randy Arozarena grounds out to shortstop, Gabriel Arias to Michael Busch.
Quick Box Score
Cubs Hitting
No.PlayerPosABRHRBIHRBBSOAVGOPS
1 K. Alcantara CF11100001.0002.000
2 S. Suzuki RF3320030.6671.500
3 M. Busch 1B3310021.3331.000
4 A. Bregman 3B3202021.0000.333
5 I. Happ LF4225111.5001.917
6 G. Arias SS2112000.5001.000
7 P. Ramirez 2B6335101.5001.500
8 M. Amaya C0000000.0000.000
9 C. Kelly P5111000.2000.400
Mariners Hitting
No.PlayerPosABRHRBIHRBBSOAVGOPS
1 R. Arozarena LF4111112.2501.400
2 J. Pereda C0000000.0000.000
3 J. Rodríguez CF4000002.0000.000
4 P. Wisdom 1B0000000.0000.000
5 B. Rodden 3B0000000.0000.000
6 W. Wilson P4010001.2500.500
7 C. Young 2B4000001.0000.000
8 V. Robles RF3110010.3330.833
9 L. Rivas SS4000001.0000.000

Cubs vs. Mariners: Detailed Breakdown

Matchup overview: MLB Sunday

  • Teams: CHI Cubs Cubs vs. Seattle Mariners
  • Date: Sunday, August 23, 2026
  • Time: 4:10PM ET
  • Venue: T-Mobile Park

Current betting odds

  • Spread: Cubs (-1.5, +150), Mariners (+1.5, -150)
  • Moneyline: Cubs -115, Mariners +120
  • Total (Over/Under): 7.5 runs (+102/-104)

Dimers’ win probabilities

  • Cubs: 52.0%
  • Mariners: 48.0%

Dimers' predictive MLB model, renowned for its accuracy, assesses each team's chances by simulating the outcome of the game 10,000 times. This method provides a precise and unbiased view.

Our Prediction: Who Wins?

After extensive simulations, our model gives the Cubs a win probability of 52.0%, while the Mariners have a win probability of 48.0%.

Summary

According to our analysis, the Cubs are more likely to beat the Mariners in the MLB game at T-Mobile Park on Sunday. Discover the best run line, over/under and moneyline odds, picks and probabilities for the game on this page.

Our Cubs vs. Mariners predictions, based on sophisticated simulations and current data, guide you in making informed decisions. Remember to bet responsibly and within your financial limits.

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