Expert Picks, Predictions & Props for Mariners vs Orioles (June 9)

• The slumping Baltimore Orioles are +105 home underdogs to the Seattle Mariners Tuesday
• Seattle opened the series Monday with a 6-3 win, sending the O’s to their third straight loss
• Read below for the my Mariners vs Orioles prediction, latest odds and prop picks

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After opening their set in Baltimore with a 6-3 win, the Seattle Mariners (35-32) look for their third win in four games overall when they square off against the Orioles (31-36) Tuesday.

It’s just the second time the Mariners have picked up a win over the Orioles in the last seven matchups, but the books like them doing it again, setting them as road favorites in the MLB odds in the second game of this 4-game set.

First pitch is scheduled for 6:35pm ET from Oriole Park at Camden Yards in Baltimore, in a game that can be seen live nationally on MLB TV.

Mariners vs Orioles Odds

The graphic above shows the best available odds, which are subject to change. Use theScore Bet promo code to wager on Mariners vs Orioles and other MLB action.

Entering this matchup, Seattle is established as a moderate road favorite, priced at -120 on the moneyline at bet365. This positions Baltimore as a +105 home underdog (odds from BetMGM), reflecting the significant starting pitching disparity (more on that below).

For bettors looking to back the runline, taking the Mariners to win by multiple runs offers a plus-money return at +140, odds courtesy of FanDuel. Taking the Orioles with the 1.5-run cushion requires laying -155 juice at Caesars.

The total has some variance. Under bettors will want to go to bet365, where the line is at 9.0 runs, while Over bettors will want to go to BetMGM, where they’ve shaved half a point off that total to 8.5 runs.

SEA Mariners vs BAL Orioles Picks & Prediction

• Best Bet: Mariners ML (-120 at bet365)

The most glaring discrepancy between these two ball clubs lies on the mound. Seattle ranks fourth in MLB with a 1.19 WHIP, directly aligning with their winning record. In stark contrast, Baltimore has allowed runs at a high rate all season, ranking near the bottom of the league in both ERA and WHIP.

Offensively, the Orioles hold a measurable advantage when playing at home. Baltimore averages nearly five runs per game at Camden Yards, producing a .745 OPS.

Seattle’s offense is middle-of-the-pack on the road, plating 4.38 runs per game. However, Seattle has won seven of its last 10 games.

The Mariners have been highly reliable when expected to win recently, cashing at a 77.8% rate as the favorite over their last 10 games.

Seattle vs Baltimore Team Stats Comparison

The real clincher for me, though is the MLB probable pitchers, and why I’m siding with Seattle on the moneyline.

Logan Gilbert anchors Seattle’s rotation. Over 13 starts (73.2 innings), he has managed traffic effectively with a 1.10 WHIP and a .232 opponent batting average.

His 9.41 K/9 allows him to escape jams and routinely work deep into games. His peripheral metrics validate his position as a high-end rotation arm.

Trevor Rogers is navigating a difficult stretch for Baltimore. Across 11 starts, he has compiled a 6.29 ERA and a 1.51 WHIP. Averaging just 4.94 innings per start, he consistently burdens the bullpen by laboring early in his outings. His underlying 4.61 FIP indicates his struggles are largely self-inflicted.

Because Rogers allows constant traffic on the basepaths, Seattle’s lineup should generate early run support and cruise to victory

Mariners vs Orioles Props

Trevor Rogers Under 4.5 Strikeouts (+118 at FanDuel): Taking the plus-money value on Rogers to fall short of his strikeout total is my preferred prop angle. Rogers is averaging just 6.79 strikeouts per nine innings.

Given his inflated 1.51 WHIP, he frequently labors through high-pitch innings. Against an offense that will look to chase him early, banking on the under provides excellent statistical value.

Josh Naylor 2+ Total Bases (+120 at FanDuel): Josh Naylor opened up this series in style, hitting a grand slam home run, part of a 2-hit, 4 RBI performance. He’s picked up at least a pair of bases in three of his last four games, and is a career 2-for-5 against Rogers.