Orioles vs Mariners Prediction 8/12/25 MLB Picks Today

The Seattle Mariners and Baltimore Orioles meet Tuesday in MLB action at Oriole Park at Camden Yards. Here’s a Orioles vs Mariners Prediction. This article will include a Orioles vs Mariners Pick.

Seattle Mariners Betting Preview

The Seattle Mariners are 66-53 on the year and play the Mets, Phillies, and Athletics next. The Seattle Mariners are batting .243 on the season, have a .321 OBP, and a .411 slugging percentage. The Seattle Mariners pitching staff has a 3.81 ERA and a 1.23 WHIP. Julio Rodriguez leads the Seattle Mariners with 125 hits and 65 RBI, while JP Crawford and Randy Arozarena have combined for 222 hits and 101 RBI.

George Kirby gets the ball for the Seattle Mariners, and he is 7-5 with a 4.04 ERA and 83 strikeouts this season. Kirby is 1-5 with a 3.80 ERA and 32 strikeouts in his career against the Baltimore Orioles. In his last start against the Chicago White Sox, he went six innings, giving up five hits and two runs. 

Baltimore Orioles Betting Preview

The Baltimore Orioles are 53-65 on the year and play the Astros, Red Sox, and Astros next. The Baltimore Orioles are batting .240 on the season, have a .304 OBP, and a .405 slugging percentage. The Baltimore Orioles pitching staff has a 4.85 ERA and a 1.41 WHIP. Gunnar Henderson leads the Baltimore Orioles with 118 hits and 50 RBI while Jackson Holliday and Jordan Westburg have combined for 178 hits and 73 RBI.

Dean Kremer gets the ball for the Baltimore Orioles, and he is 8-8 with a 4.35 ERA and 110 strikeouts this season. Kremer is 1-0 with a 2.57 ERA and 25 strikeouts in his career against the Seattle Mariners. In his last start against the Phillies, he went six innings giving up eight hits and four runs. 

Why the Baltimore Orioles will win

• The Orioles have won each of their last six games as underdogs against the Mariners.
• The Mariners have lost four of their last five games as road favorites against American League opponents following a win.
• The Orioles have covered the run line in each of their last six games as home underdogs.
• The Mariners have failed to cover the run line in nine of their last 10 night games against AL East opponents following a win.
• The Orioles have won the first inning in three of their last four games against opponents that held a winning record at Oriole Park at Camden Yards.
• The Orioles have led after 3 innings in six of their last seven games against American League opponents that held a winning record.
• The Orioles have led after 5 innings in seven of their last eight games against the Mariners at Oriole Park at Camden Yards.

Why the Seattle Mariners will win

• The Mariners have won each of their last seven games.
• The Orioles have lost each of their last five night games against American League opponents following a loss.
• The Orioles have failed to cover the run line in seven of their last eight games against AL West opponents.
• The road team has covered the run line in each of the Orioles’ last four games.
• The Orioles have trailed after 5 innings in each of their last four games as underdogs against AL West opponents.
• The Mariners have led after 3 innings in four of their last five games.

Baltimore Orioles Player Prop Facts

• Gunnar Henderson has hit a home run in each of the Orioles’ last three home games against the Mariners.
• Adley Rutschman has recorded at least one Double in six of the Orioles’ last eight games as underdogs.
• Dean Kremer has recorded six or more strikeouts in four of his last five appearances with the Orioles as underdogs against AL opponents.
• Adley Rutschman has recorded at least one hit in each of the Orioles’ last eight games as underdogs.
• Dean Kremer has recorded a win in each of his last three appearances with the Orioles as home underdogs against AL West opponents.

Seattle Mariners Player Prop Facts

• Cal Raleigh has hit a home run in each of the Mariners’ last four games against AL East opponents that held a losing record.
• George Kirby has recorded nine strikeouts in each of his last three appearances against opponents that held a losing record.
• George Kirby has recorded a win in seven of his last eight appearances with the Mariners as road favorites.
• Luke Raley has recorded a Double in three of his last four appearances in night games against AL teams that held a losing record.
• Luke Raley has recorded at least one hit in each of his last eight appearances after not playing the previous day.
• Cal Raleigh ranks 1st in the league in Home Runs (45) this season.

Orioles vs Mariners Prediction

The Mariners have won seven straight games and the Orioles continue to play disappointing ball. Kirby has been decent lately, allowing 27 hits and 12 runs in his last 35.1 innings. Kremer has been hittable all season, and that includes allowing 34 hits and 18 runs in his last 35.1 innings. Yes, Kremer has been at his best at home, but that hasn’t stopped the Orioles from losing each of his last four games. I’ll ride the hot hand with the Mariners.