Red Sox vs. Mariners Prediction, Picks and Odds

Our detailed prediction and analysis for the Red Sox vs. Mariners MLB game on June 21, 2026 is featured below. Drawing from 10,000 game simulations, we provide expert picks, betting odds, and insights.
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MLB
Red Sox
Payton Tolle 3-4, 2.93 ERA
1
3
T-Mobile Park
Mariners
Logan Gilbert 5-4, 3.43 ERA
T-Mobile Park
1 2 3 4 5 6 7 8 9 RHE
Red Sox
0 0 1 0 0 0 0 0 0 1 5 0
Mariners
0 1 0 0 1 1 0 0 X 3 6 1
Live Probabilities
Win %
  • Red Sox
    0%
  • Mariners
    100%
Win Probability
Baseball infield diamond diagram
Last At Bat
Outs
Jarren Duran strikes out swinging.
Quick Box Score
Red Sox Hitting
No.PlayerPosABRHRBIHRBBSOAVGOPS
1 A. Seigler 2B4000002.0000.000
2 C. Rafaela CF4010000.2500.500
3 M. Gasper DH3010010.3330.833
4 W. Contreras 1B4000003.0000.000
5 J. Duran LF4000003.0000.000
6 C. Durbin 3B3020001.6671.667
7 A. Monasterio SS1000001.0000.000
8 C. Narváez C0000000.0000.000
9 N. Eaton RF2111111.5002.667
Mariners Hitting
No.PlayerPosABRHRBIHRBBSOAVGOPS
1 J. Crawford SS3010010.3330.833
2 C. Raleigh C4000001.0000.000
3 J. Rodríguez CF3110010.3330.833
4 J. Naylor 1B3000011.0000.250
5 C. Emerson DH1000001.0000.000
6 L. Raley RF0000000.0000.000
7 V. Robles LF3000001.0000.000
8 W. Wilson 3B3110000.3330.666
9 C. Young 2B3011000.3330.666

Red Sox vs. Mariners: Detailed Breakdown

Matchup Overview

  • Teams: Red Sox vs. Mariners
  • Date: Sunday, June 21, 2026
  • Time: 4:10 PM ET
  • Venue: T-Mobile Park

Current Betting Odds

  • Spread: Mariners favored at -1.5
  • Total (Over/Under): 6.5
  • Moneyline Odds: Red Sox 46¢, Mariners 53¢

Dimers' Win Probabilities

  • Red Sox: 45%
  • Mariners: 55%

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 Red Sox a win probability of 45%, while the Mariners have a win probability of 55%. 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 Red Sox in the MLB game at T-Mobile Park on Sunday. Discover the best spread, over/under and moneyline odds, picks and probabilities for the game on this page.

Our Red Sox 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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For further insights, explore our expert MLB predictions and the best MLB bets today, while our in-depth analysis includes MLB props, MLB futures, MLB odds, and the latest MLB news.