Reds vs. Mariners Prediction, Picks and Odds

Our detailed prediction and analysis for the Reds vs. Mariners MLB game on July 21, 2026 is featured below. Drawing from 10,000 game simulations, we provide expert picks, betting odds, and insights.
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MLB sport icon
MLB
Reds
Chase Burns 11-1, 2.54 ERA
4
2
T-Mobile Park
Mariners
Luis Castillo 3-8, 4.93 ERA
T-Mobile Park
1 2 3 4 5 6 7 8 9 RHE
Reds
1 0 0 1 1 0 0 0 1 4 5 0
Mariners
0 0 0 0 0 0 1 1 0 2 6 1
Live Probabilities
Win %
  • Reds
    100%
  • Mariners
    0%
Win Probability
Baseball infield diamond diagram
Last At Bat
Outs
Dominic Canzone strikes out swinging.
Quick Box Score
Reds Hitting
No.PlayerPosABRHRBIHRBBSOAVGOPS
1 E. De La Cruz SS3111110.3331.833
2 S. Stewart 1B3001001.0000.000
3 D. Myers CF1000000.0000.000
4 K. Hayes 3B0000000.0000.000
5 N. Lowe DH4111100.2501.250
6 N. Marte RF4000000.0000.000
7 J. Trevino C4010001.2500.500
8 T. Friedl LF2100020.0000.500
9 E. Arroyo 2B3010001.3330.666
Mariners Hitting
No.PlayerPosABRHRBIHRBBSOAVGOPS
1 C. Young 2B5000000.0000.000
2 R. Arozarena LF3000021.0000.400
3 D. Canzone DH3000021.0000.400
4 C. Raleigh C2000021.0000.500
5 J. Naylor 1B4030000.7501.500
6 J. Rodríguez CF2111100.5002.500
7 V. Robles RF4010000.2500.500
8 C. Emerson SS4000002.0000.000
9 W. Wilson 3B4111102.2501.250

Reds vs. Mariners: Detailed Breakdown

Matchup Overview

  • Teams: Reds vs. Mariners
  • Date: Tuesday, July 21, 2026
  • Time: 9:40 PM ET
  • Venue: T-Mobile Park

Current Betting Odds

  • Spread: Mariners favored at -1.5
  • Total (Over/Under): 7.5
  • Moneyline Odds: Reds 49¢, Mariners 51¢

Dimers' Win Probabilities

  • Reds: 47%
  • Mariners: 53%

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 Reds a win probability of 47%, while the Mariners have a win probability of 53%. 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 Reds in the MLB game at T-Mobile Park on Wednesday. Discover the best spread, over/under and moneyline odds, picks and probabilities for the game on this page.

Our Reds 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.