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Seattle Mariners at Cleveland Guardians

Cleveland Guardians vs Seattle Mariners head-to-head

MLBregular • 2026 Season
completed
Guardians logo
Guardians
Cleveland
1
vs
Mariners logo
Mariners
Seattle
3
CLE 58%42% SEA
Prediction Confidence:
Moderate

Cleveland Guardians 58% to win. The top 3 signals favoring Guardians:

  • Home Field Advantage. Base home field advantage applied (no detailed stats available)
  • Rest Days. Guardians rest advantage (2 days rest) over Mariners (1 day rest)
  • ELO Rating. Guardians ELO 1513 vs Mariners ELO 1478 (diff: +35)

What would change the call

Win probability as of kickoff if a leading factor were even

  • If the home-field edge were neutral: CLE 54% (−4)
  • If the rest edge were neutral: CLE 56% (−2)

Win probability movement

CLE home win probability as the model updated before the game

Home win probability movement63%57%51%Jun 23Jun 26

Labels mark updates of 5 points or more, named by the factor that moved most.

Make Your Prediction

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VenueProgressive Field
Cleveland, Ohio

Team Comparison

Head-to-head snapshot based on our model inputs

Mariners (away)
Guardians (home)
42%
Win probability
58%
0
High-impact factors
0
0
Players ruled out
0

Post-Game Analysis

How our model performed

The Mariners defeated the Guardians 3-1.

Our model predicted the Guardians would win with 58% confidence, but the Mariners pulled off the upset. These outcomes are what keep sports compelling -- and help our model learn.

Looking at the factors our model weighed:

  • Home Field Advantage favored the Guardians and was a notable factor: Base home field advantage applied (no detailed stats available)
  • Rest Days favored the Guardians and was a contributing factor: Guardians rest advantage (2 days rest) over Mariners (1 day rest)
  • Head to Head was neutral and a contributing factor: No recent head-to-head history available

This analysis was generated from our model's pre-game assessment compared against the actual result. Factor accuracy helps improve future predictions.

Mariners won 1-3

Mariners won in a close game

Prediction IncorrectWe predicted Guardians at 58%

Key Factors

What's driving the win probability for this game

  • Home Field AdvantageFavors Cleveland Guardians
  • Rest DaysFavors Cleveland Guardians
  • Head to HeadNeutral
  • Recent FormNeutral
  • InjuriesNeutral
  • Defensive EfficiencyNeutral
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What's Driving This Game

Each factor's contribution to the final win probability

SEA
CLE
Home Field Advantage
Rest Days
Favours SEA|Favours CLE

Premium feature: factor breakdown

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Understanding the win probability calculation

1 factor not shown (insufficient data)

Model version: 1.1.0 • Calculated: 6/26/2026, 11:00:03 PM

Key Players

Mariners

Logan GilbertSP
Bryan WooSP
Bryce MillerSP
Kade AndersonSP
George KirbySP

Guardians

Slade CecconiSP
Joey CantilloSP
Tanner BibeeSP
Foster GriffinSP
Parker MessickSP

Learn About Our Analysis

Learn about the factors behind our predictions

More games

Next and previous games for each team, plus others from this date. Win probabilities use the same display assessment as the game page.

Cleveland Guardians

Seattle Mariners

Other games on Jun 26, 2026

Frequently Asked Questions

Guardians has a 58% win probability, while Mariners has a 42% win probability based on our analysis.

Our model considers weather conditions, offensive and defensive efficiency, rest days, injury impact, and historical performance.

This game is being played at Progressive Field in Cleveland, Ohio.

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