
St. Louis Cardinals

Seattle Mariners
(-105/-115)-220
As the Seattle Mariners prepare to face off against the St. Louis Cardinals on September 10, 2025, at T-Mobile Park, both teams are looking to make an impact in this Interleague matchup. The Mariners, currently holding a record of 77-68, are enjoying an above-average season, while the Cardinals sit at 72-74, marking an average performance thus far. In their last game, the Mariners showcased their potential with a strong victory, which has boosted their confidence heading into this series finale.
On the mound, the Mariners will rely on Logan Gilbert, who is projected to be the #15 best starting pitcher in MLB according to advanced stats. Despite a 4-6 record this season, Gilbert has a solid ERA of 3.61 and an impressive 2.69 xFIP, indicating he has been somewhat unlucky and could perform even better moving forward. He projects to pitch 5.8 innings while allowing just 1.9 earned runs, showcasing his ability to limit scoring opportunities. However, he will need to improve on allowing 4.3 hits and 1.1 walks on average.
Opposing Gilbert will be the Cardinals’ Michael McGreevy, who has had a decent season with a 6-3 record and a 4.68 ERA. McGreevy’s low strikeout rate (14.0 K%) could be a concern against a Mariners offense that ranks 4th in MLB for strikeouts. The projections suggest he will pitch 5.3 innings, allowing 2.6 earned runs, but he faces a tough challenge against a Mariners lineup that ranks 12th overall in offensive production, highlighted by their 2nd best ranking in home runs.
With the Mariners being favored at -225 on the moneyline and an implied team total of 4.47 runs, they are expected to capitalize on the Cardinals’ struggles, particularly in the power department where St. Louis ranks 28th in home runs. This matchup not only carries significance for the standings but also presents an opportunity for the Mariners to solidify their position as they aim for a potential Wild Card spot.
St. Louis Cardinals Insights
- Michael McGreevy – Over/Under 3.5 Strikeouts (-115/-115)Out of all starting pitchers, Michael McGreevy’s fastball velocity of 91.1 mph is in the 21st percentile this year.Explain: Velocity is a key component to fastball success in generating strikeouts and preventing runs.
- Thomas Saggese – Over/Under 0.5 Total Bases (-130/+100)Over the last week, Thomas Saggese’s Barrel% has experienced a negative regression, plummeting from his seasonal rate of 5.3% down to 0%.Explain: Barrel% measures how often a player hits the ball at the optimal exit velocity and launch angle and is a terrific measure of underlying power.
- The St. Louis Cardinals have 4 hitters in their projected batting order today with a high (i.e. over 27%) underlying K% (according to the leading projection system, THE BAT X) (Willson Contreras, Nolan Gorman, Thomas Saggese, Pedro Pages).Explain: Teams that have multiple high-strikeout hitters will make it much easier for the opposing pitcher to record strikeouts
Seattle Mariners Insights
- Logan Gilbert – Over/Under 17.5 Pitching Outs (-160/+125)As forecasted by the leading projection system (THE BAT X), Logan Gilbert is expected to rack up an average of 17.3 outs in today’s outing.Explain: THE BAT X is a highly sophisticated projection system that accounts for a multitude of factors like ballpark, weather, umpire, defense, and more.
- Cal Raleigh – Over/Under 1.5 Total Bases (-110/-120)This season, Cal Raleigh has experienced a significant improvement in his exit velocity on flyballs, now sitting at an average of 97.4 mph compared to last year’s 94.9 mph mark.Explain: Most home runs are flyballs, and the harder those flyballs are hit, the more often they turn into home runs. This is a strong indicator of power.
- Seattle Mariners – 2H MoneylineAccording to the leading projection system (THE BAT), the Seattle Mariners’ bullpen projects as the 10th-best out of all teams in Major League Baseball.Explain: Most bettors only consider the starting pitcher, but a strong bullpen sneakily creates a tougher matchup for the opposing offense and suppresses a game’s runs.
Betting Trends
- Seattle Mariners – Moneyline (-220)The Seattle Mariners have hit the Moneyline in 26 of their last 36 games at home (+12.85 Units / 22% ROI)
- St. Louis Cardinals – Over/Under 1.5 1st Five Innings (F5) Team Total (+125/-160)The St. Louis Cardinals have hit the 1st Five Innings (F5) Team Total Under in 60 of their last 106 games (+7.75 Units / 6% ROI)
- Pedro Pages – Over/Under 0.5 Home Runs (+950/-2900)Pedro Pages has hit the Home Runs Over in 2 of his last 4 away games (+10.20 Units / 255% ROI)