Cubs vs. Mariners Prediction, Picks and Odds

Our detailed prediction and analysis for the Cubs vs. Mariners MLB game on August 21, 2026 is featured below. Drawing from 10,000 game simulations, we provide expert picks, betting odds, and insights.
MLB
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MLB
Cubs
Matthew Boyd 8-2, 4.02 ERA
vs.
T-Mobile Park
Mariners
Emerson Hancock 7-7, 3.31 ERA
T-Mobile Park
Pre-Game Probabilities Last Update:

Moneyline

Moneyline
Win %
  • Cubs
    48.6%
    NovigNovig
  • Mariners
    51.4%
    PolymarketPolymarket

Cubs vs. Mariners: Detailed Breakdown

Matchup Overview

  • Teams: Cubs vs. Mariners
  • Date: Friday, August 21, 2026
  • Time: 10:10 PM ET
  • Venue: T-Mobile Park

Current Betting Odds

  • Spread: Mariners favored at -1.5
  • Total (Over/Under): 7.5
  • Moneyline Odds: Cubs +102, Mariners +100

Dimers' Win Probabilities

  • Cubs: 49%
  • Mariners: 51%

Dimers' predictive 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 49%, while the Mariners have a win probability of 51%. Discover the best spread, over/under, and moneyline odds for the game on this page.

Summary

According to our analysis, the Mariners are more likely to beat the Cubs in the MLB game at T-Mobile Park on Saturday. Discover the best spread, 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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