Its Monday, August 18 and the Mariners (68-57) are in Philadelphia to open a series against the Phillies (71-53).
Logan Gilbert is slated to take the mound for Seattle against Ranger Suárez for Philadelphia.
The Phillies are in control of the National League East leading the Mets in the division by 5.5 games after taking two of three over the weekend in Washington. Sunday, Philly outslugged the Nationals, 11-9. Alec Bohm went 2-4 with a home run and three runs batted in to pace the attack in his first game since July 18.
The Mariners lost two of three at Citi Field over the weekend to the Mets. Yesterday, George Kirby was smacked by New York allowing seven runs in just 4.2 innings. Cal Raleigh did go deep for the 47th time this season in the loss.
Lets dive into the matchup and find a sweat or two.
We’ve got all the info and analysis you need to know ahead of the game, including the latest info on the how to catch the first pitch, odds, recent team performance, player stats, and of course, our predictions, picks & best bets for the game from our modeling tools and staff of experts.
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Game details & how to watch Mariners at Phillies
- Date: Monday, August 18, 2025
- Time: 10:45PM EST
- Site: Citizens Bank Park
- City: Philadelphia, PA
- Network/Streaming: RSNW, NBCSP, MLBN
Never miss a second of the action and stay up-to-date with all the latest team stats and player news. Check out our day-by-day MLB schedule page, along with detailed matchup pages that update live in-game with every out.
Odds for the Mariners at the Phillies
The latest odds as of Monday:
- Moneyline: Mariners (-107), Phillies (-112)
- Spread: Phillies 1.5
- Total: 8.0 runs
Probable starting pitchers for Mariners at Phillies
- Pitching matchup for August 18, 2025: Logan Gilbert vs. Ranger Suárez
- Mariners: Logan Gilbert (3-4, 3.31 ERA)
Last outing: August 13 at Baltimore – 2.84 ERA, 2 Earned Runs Allowed, 4 Hits Allowed, 2 Walks, and 6 Strikeouts - Phillies: Ranger Suárez (8-6, 3.29 ERA)
Last outing: August 12 at Cincinnati – 10.13 ERA, 6 Earned Runs Allowed, 10 Hits Allowed, 2 Walks, and 3 Strikeouts
- Mariners: Logan Gilbert (3-4, 3.31 ERA)
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Top betting trends & insights to know ahead of Mariners at Phillies
- This season Ranger Suarez has an ERA of 3.29 and a WHIP of 1.20
- Ranger Suarez has not struck out more than 5 in 5 of his last 6 starts
- The Phillies have won 4 of their last 5 games against AL West teams
- Bryce Harper has at least 1 hit in 3 of his last 4 games (5-17) with 1 HR and 5 RBIs
If you’re looking for more key trends and stats around the spread, moneyline and total for every single game on the schedule today, check out our MLB Top Trends tool on NBC Sports!
Expert picks & predictions for tonight’s game between the Mariners and the Phillies
Rotoworld Best Bet
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Our model calculates projections around each moneyline, spread and over/under bet for every game on the MLB calendar based on data points like past performance, player matchups, ballpark information and weather forecasts.
Once the model is finished running, we put its projection next to the latest betting lines for the game to arrive at a relative confidence level for each wager.
Here are the best bets our model is projecting for Monday’s game between the Mariners and the Phillies:
- Moneyline: NBC Sports Bet is recommending a play on the Philadelphia Phillies on the Moneyline.
- Spread: NBC Sports Bet is leaning towards a play ATS on the Seattle Mariners at +1.5.
- Total: NBC Sports Bet is leaning towards a play on the over on the Game Total of 8.0.
Want even more MLB best bets and predictions from our expert staff & tools? Check out the Expert MLB Predictions page fromNBC
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- Jay Croucher (@croucherJD)
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