Mariners vs Orioles Prediction 8/12/2025 Today’s MLB Picks

In this article we will formulate a Mariners vs Orioles prediction for this MLB game on Tuesday, August 12th at Camden Yards in Baltimore, Maryland. Let’s take a look at the prediction for this MLB matchup. 

Seattle Mariners Betting Preview

The Seattle Mariners are 66-53 this year after they swept Tampa Bay in three games by scores of 3-2, 7-4, and 6-3. In their game three win, Seattle led 4-0 in the first inning and added two insurance runs late to seal the victory. The Mariners recorded nine hits in the game and they were led by Raleigh and Suarez, who both had two RBIs in the win. Seattle started Woo, who allowed seven hits and three earned runs over 6.0 innings for the win, while Brash picked up the save. 

Prior to that series, the Mariners won all three against the White Sox and three out of four against the Rangers. Seattle has won nine of their last ten games and they are currently second in the AL West standings. The Seattle pitching staff has a 3.81 ERA with a 1.23 WHIP and a .239 opponent batting average, while the offense has scored 547 runs with a .243 batting average and a .321 on base percentage this season. Cal Raleigh has led Seattle with 45 home runs and 98 RBIs, while Randy Arozarena has added 23 home runs and 57 RBIs this year. The projected starting pitcher for Seattle is George Kirby, who is 7-5 with a 4.04 ERA and a 1.13 WHIP over 78.0 innings pitched this year. 

Baltimore Orioles Betting Preview

The Baltimore Orioles are 53-65 this season after they lost two out of three against the Athletics by scores of 3-2, 3-11, and 2-3. In their game three loss, Baltimore led 2-1 in the ninth inning, but they blew the lead and ended with the loss. The Orioles recorded five hits in the game and they were led by Mayo and Westburg, who both had one RBI in the loss. Baltimore started Povich, who allowed four hits and one earned run over 6.0 innings, while Akin blew the save and picked up the loss. 

Prior to that series, the Orioles lost two out of three against the Phillies and two out of three against the Cubs. Baltimore has lost five of their last seven games and they are currently last in the AL East standings. The Baltimore pitching staff has a 4.85 ERA with a 1.41 WHIP and a .266 opponent batting average, while their offense has scored 505 runs with a .240 batting average and a .304 on base percentage this season. Jackson Holliday has led Baltimore with 14 home runs and 44 RBIs, while Gunnar Henderson has added 14 home runs and 50 RBIs this year. The projected starting pitcher for Baltimore is Dean Kremer, who is 8-8 with a 4.35 ERA and a 1.28 WHIP over 132.1 innings pitched this season.

Why the Mariners will beat the Orioles

• The Mariners have won each of their last seven games against American League opponents.
• The Orioles have lost four of their last five games against AL West opponents.
• The Orioles have failed to cover the run line in each of their last five games against AL West opponents.
• The Mariners have covered the run line in six of their last eight games at Oriole Park at Camden Yards against teams that held a losing record.
• The Orioles have trailed after 5 innings in six of their last seven games as underdogs against AL West opponents.
• The Orioles have trailed after 3 innings in three of their last four games as home underdogs against American League opponents.

Total Runs Facts

• Each of the Mariners’ last four road games have gone UNDER the total runs line.
• Seven of the last nine games between the Mariners and Orioles at Oriole Park at Camden Yards have gone OVER the total runs line.
• The ‘Inning 1 UNDER 0.5 runs’ market has hit in eight of the Orioles’ last nine games as underdogs against AL West opponents.
• The ‘Inning 1 OVER 0.5 runs’ market has hit in each of the Mariners’ last four night games against American League opponents.

Baltimore Orioles Player Prop Facts

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

Seattle Mariners Player Prop Facts

• Cal Raleigh has hit a home run in four of the Mariners’ last five games as favorites against AL East opponents.
• George Kirby has recorded a win in each of his last five appearances against AL opponents.
• Victor Robles has recorded at least one hit in each of his last eight appearances.

Mariners vs Orioles Prediction 

Seattle rolls into Baltimore on a long winning streak and they are battling with Houston for first in the AL West. The Mariners are 29-28 on the road this year, while the Orioles are 28-29 at home. Baltimore has had some offensive struggles in recent series and they are facing Kirby, who has allowed two earned runs or fewer in three straight outings. The Mariners are red hot at the plate and they are going against Kremer, who has allowed 4, 3, and 5 earned runs in his last three outings. Take the Mariners -1.5 here.