MLB Prediction: Seattle Mariners vs Cleveland Guardians (Sunday, August 31 at 01:40 PM ET)
Introduction
| Market / Trend | SEA | CLE |
|---|---|---|
| Moneyline | -120 | +104 |
| Total (O/U) | 8.5 | |
| Run Line | -1.5 (142) | +1.5 (-165) |
| Last 5 RPG | 5.2 | 3.2 |
| Record | 72–64 | 68–66 |
| Lines: BetMGM, BetOnline.ag, BetRivers, BetUS +7 more | ||
More MLB picks: Seattle Mariners · Cleveland Guardians
Seattle enters this matchup analysis with a 72-64 record and a recent stretch of 4-6 over their last 10, while Cleveland has slipped to a 68-66 mark with just 2.6 RPG across the same span. That scoring gap highlights where the value sits in this MLB prediction, as the Mariners’ offense maintains a steadier run output compared to the Guardians’ inconsistent bats. With Seattle Mariners’ lineup featuring multiple power threats and Cleveland struggling to sustain rallies, the sharper edge lies with the visitors and a lower-scoring contest overall.
Game Time
First pitch is set for Sunday, August 31 at 01:40 PM ET at Progressive Field, conditions can swing totals.
Odds & Spread Line
- Seattle Mariners: -120
- Cleveland Guardians: +104
Total: 8.5
- Run Line — Seattle Mariners: -1.5 (+142)
- Run Line — Cleveland Guardians: +1.5 (-165)
Latest Team Records
Seattle Mariners: 72-64 (Win %: 0.529)
Cleveland Guardians: 68-66 (Win %: 0.507)
Injury Report
Seattle Mariners are missing Ryan Bliss (Biceps), listed as 60-Day-IL; Logan Evans (Elbow), listed as 15-Day-IL.
Cleveland Guardians are missing Andrew Walters (Lat), listed as 60-Day-IL; Ben Lively (Elbow), listed as 60-Day-IL.
Key Player Stats
Seattle Mariners
- Cal Raleigh: 0.243 AVG, 50 HR, 107 RBI
- Eugenio Suarez: 0.237 AVG, 42 HR, 105 RBI
- Julio Rodriguez: 0.263 AVG, 25 HR, 74 RBI
Cleveland Guardians
- Jose Ramirez: 0.285 AVG, 26 HR, 68 RBI
- Kyle Manzardo: 0.235 AVG, 22 HR, 58 RBI
- Steven Kwan: 0.271 AVG, 10 HR, 42 RBI
Team Analysis
Seattle Mariners
The Mariners’ last 5 games show a 2-3 record with 5.2 RPG, suggesting that while results have been uneven, the offense continues to generate runs at a competitive clip. Cal Raleigh’s power presence sets the tone for a lineup that can change games quickly, and Seattle Mariners’ consistency in producing extra-base hits has kept them competitive even when pitching wavers. On the road, their 31-37 record reveals some volatility, but their ability to elevate scoring output offsets those concerns in this spot.
Julio Rodriguez adds a dynamic layer to the lineup, balancing power with run production that helps sustain rallies. Eugenio Suarez has been a steady contributor as well, providing depth that Cleveland Guardians’ rotation has struggled to neutralize in prior meetings. With an overall 72-64 record, Seattle enters with more stability than their opponent, making them the more reliable moneyline side in this matchup.
- Batting Average: 0.242
- Total Runs Scored: 620
- Home Runs: 192
- OBP: 0.318
- SLG: 0.411
- OPS: 0.729
- ERA: 3.97
- WHIP: 1.26
Away Record: 31-37 • Home Record: 41-27
Last 5 Games: 2-3 (5.2 RPG)
Last 10 Games: 4-6 (4.7 RPG)
Cleveland Guardians
The Guardians have played their last 5 games at a 4-1 clip, but their 3.2 RPG during that run reveals how heavily they rely on tight, low-scoring outcomes. Jose Ramirez has been the primary driver of their offense, but the lack of consistent support has kept production capped. At home, their 35-32 record is serviceable, yet the thin margin for error often keeps them in games that lean toward the Under.
Steven Kwan’s ability to reach base adds situational value, but Kyle Manzardo’s inconsistent run production leaves the lineup stretched. The broader 10-game sample shows a 4-6 record with only 2.6 RPG, a clear sign of offensive stagnation. Against a Mariners team that can generate more sustained scoring, Cleveland Guardians’ lack of depth makes them a weaker betting side despite recent wins.
- Batting Average: 0.224
- Total Runs Scored: 513
- Home Runs: 135
- OBP: 0.295
- SLG: 0.367
- OPS: 0.663
- ERA: 3.93
- WHIP: 1.31
Away Record: 33-34 • Home Record: 35-32
Last 5 Games: 4-1 (3.2 RPG)
Last 10 Games: 4-6 (2.6 RPG)
Head-to-Head History
Seattle Mariners lead 3–2 (Last 5 games)
- August 30, 2025: SEA 3 @ CLE 4
- August 29, 2025: SEA 4 @ CLE 5
- June 15, 2025: CLE 0 @ SEA 6
- June 14, 2025: CLE 3 @ SEA 4
- June 13, 2025: CLE 2 @ SEA 7
Over/Under Trends
Seattle Mariners’ last 10 games have averaged 9.7 total runs, with 6 games that would have cleared today’s total of 8.5.
Cleveland Guardians’ last 10 games have averaged 7.3 combined runs, with 4 games clearing the same number of 8.5.
Moneyline Betting Prediction
Seattle Mariners’ steadier run production and deeper lineup give them a clear edge over Cleveland Guardians’ inconsistent offense, especially with the Guardians averaging just 2.6 RPG across their last 10. With the Mariners already holding a 3-2 head-to-head advantage and proven power threats capable of separating this contest, they are the stronger side to back.
Data supports the Seattle Mariners as the right side.
Over/Under Prediction
Recent five-game scoring: the Cleveland Guardians are at 3.2 RPG and the Seattle Mariners at 5.2 — a useful baseline against the total.
These teams are combining for 8.4 runs per game recently — right around the posted total of 8.5. That points toward the Under 8.5.
Bookmakers
Available at: FanDuel, MyBookie.ag, BetOnline.ag, LowVig.ag, Fanatics, Caesars, DraftKings, Bovada, BetUS, BetMGM, BetRivers.
Parlamaz may earn affiliate commissions from links in this article.
MLB Predictions FAQ
What’s a good price range for today’s pick (Aug 31, 2025)?
We list a target price in the post. If the market moves past that number, reduce stake size or pass instead of chasing worse odds.
How should I size my bets?
Use a consistent unit (about 1–2% of bankroll). Singles should be most of your volume. We like parlays—smart ones. Keep legs tight (2–3), cap risk to 0.25–0.5u, and pass when the price isn’t there.
What do moneyline, run line, and total mean?
Moneyline is who wins the game. Run line is a spread, usually ±1.5 runs. The total (over/under) is combined runs by both teams.
