Mariners vs. Red Sox: MLB Prediction & Analysis

Our detailed prediction and analysis for the Mariners vs. Red Sox MLB game on Monday, August 31, 2026 is featured below. Drawing from 10,000 game simulations, we provide expert picks, betting odds, and insights.
MLB
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MLB
Mariners
George Kirby 9-10, 4.02 ERA
vs.
Fenway Park
Red Sox
Payton Tolle 8-6, 3.09 ERA
Fenway Park
Pre-Game Probabilities Last Update:

Moneyline

Moneyline
Win %
  • Mariners
    43.0%
    NovigNovig
  • Red Sox
    57.0%
    NovigNovig

Mariners vs. Red Sox: Detailed Breakdown

Matchup overview: MLB Monday

  • Teams: Seattle Mariners vs. Boston Red Sox
  • Date: Monday, August 31, 2026
  • Time: 6:45PM ET
  • Venue: Fenway Park

Current betting odds

  • Spread: Mariners (+1.5, -150), Red Sox (-1.5, +140)
  • Moneyline: Mariners +147, Red Sox -150
  • Total (Over/Under): 8 runs (-105/-110)

Dimers’ win probabilities

  • Mariners: 43.0%
  • Red Sox: 57.0%

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 Mariners a win probability of 43.0%, while the Red Sox have a win probability of 57.0%.

Summary

According to our analysis, the Red Sox are more likely to beat the Mariners in the MLB game at Fenway Park on Monday. Discover the best run line, over/under and moneyline odds, picks and probabilities for the game on this page.

Our Mariners vs. Red Sox 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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