Astros vs. Mariners: MLB Prediction & Analysis

Our detailed prediction and analysis for the Astros vs. Mariners MLB game on Wednesday, September 23, 2026 is featured below. Drawing from 10,000 game simulations, we provide expert picks, betting odds, and insights.
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MLB
Astros
Ethan Pecko 1-0, 3.77 ERA
5
6
T-Mobile Park
Mariners
George Kirby 9-11, 4.24 ERA
T-Mobile Park
2 3 4 5 6 7 8 9 10 RHE
Astros
0 4 0 0 0 0 0 0 1 5 10 0
Mariners
0 3 0 1 0 0 0 0 2 6 9 0
Live Probabilities
Win %
  • Astros
    0%
  • Mariners
    100%
Win Probability
Baseball infield diamond diagram
Last At Bat
Outs
Josh Naylor singles to center field. Julio Rodríguez to second. Cal Raleigh to third. Randy Arozarena scores.
Quick Box Score
Astros Hitting
No.PlayerPosABRHRBIHRBBSOAVGOPS
1 J. Altuve 2B5121002.4000.800
2 Y. Alvarez DH4220010.5001.350
3 I. Paredes 3B4011001.2500.700
4 Y. Diaz C5123100.4001.800
5 N. Velázquez RF1000001.0000.000
6 T. Trammell LF5000003.0000.000
7 L. Wade 1B1000001.0000.000
8 L. Spence CF3000012.0000.250
9 N. Allen SS4120001.5001.250
Mariners Hitting
No.PlayerPosABRHRBIHRBBSOAVGOPS
1 J. Crawford 3B5210001.2000.400
2 R. Arozarena LF3310020.3330.933
3 D. Canzone DH5023000.4000.800
4 C. Raleigh C4000012.0000.200
5 J. Rodríguez CF4032010.7501.800
6 J. Naylor 1B4011010.2500.650
7 C. Young SS4000001.0000.000
8 T. Ward RF10100001.0002.000
9 M. Arroyo 2B1000010.0000.500

Astros vs. Mariners: Detailed Breakdown

Matchup overview: MLB Wednesday

  • Teams: Houston Astros vs. Seattle Mariners
  • Date: Wednesday, September 23, 2026
  • Time: 10:10PM ET
  • Venue: T-Mobile Park

Current betting odds

  • Spread: Astros (+1.5, -178), Mariners (-1.5, +170)
  • Moneyline: Astros +117, Mariners -120
  • Total (Over/Under): 7.5 runs (-102/+100)

Dimers’ win probabilities

  • Astros: 44.3%
  • Mariners: 55.7%

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 Astros a win probability of 44.3%, while the Mariners have a win probability of 55.7%.

Summary

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

Our Astros 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.