Orioles vs Mariners Prediction 6/18/26 MLB Picks Today

In this article, we will formulate an Orioles vs Mariners Prediction for this MLB matchup on Thursday, June 18^th in the third game of this series. Let’s take a look at the prediction for this MLB matchup.

Seattle Mariners Preview

The Seattle Mariners have a 38-37 record this season and are sitting in the 1st place of the AL West. They have a 20-17 home record and are coming off a 3-5 home defeat against the Orioles. They will face the Red Sox and the Pirates next.

The Mariners have a .236 batting average this season, .317 OBP and .396 Slugging percentage. Seattle’s pitching staff has a 3.67 ERA and 1.19 WHIP. Randy Arozarena is the team’s best hitter with a .291 batting average. Luke Raley leads the team in RBI with 35, adding a team-high 14 home runs.

Bryan Woo (R) is the projected starting pitcher for the Mariners, and he has a 5-5 record, 4.28 ERA and 1.04 WHIP.

Baltimore Orioles Preview

The Baltimore Orioles have a 35-40 record this season and are sitting in the 4th place of the AL East. They have a 13-21 road record and are coming off a 5-3 road win against the Mariners. They will face the Dodgers and the Angels next.

The Orioles have a .242 batting average this season, .322 OBP and .402 Slugging percentage. Baltimore’s pitching staff has a 4.55 ERA and 1.40 WHIP. Taylor Ward is the team’s best hitter with a .256 batting average. Pete Alonso leads the team in RBI with 48, adding a team-high 16 home runs.

Shane Baz (R) is the projected starting pitcher for the Orioles, and he has a 4-6 record, 4.06 ERA and 1.39 WHIP.

Baltimore Orioles @ Seattle Mariners Betting Trends: June 18, 2026

• Probable Starting Pitcher: Bryan Woo      Record this season: 5-5      ERA: 4.28
• Home Record: 4-0
• Last 5 against Orioles: 0-2

Why the Seattle Mariners will win

• The Orioles have lost 10 of their last 11 road games against teams that held a winning record.
• The Mariners have won 27 of their last 33 home games against teams that held a losing record.
• The Orioles have failed to cover the run line in 10 of their last 11 road games against teams that held a winning record.
• The Mariners have covered the run line in each of their last three day games against American League opponents.
• The Mariners have led after 3 innings in 10 of their last 11 day games against American League opponents that held a losing record.
• The Orioles have lost the first inning in each of their last five Thursday games against opponents that held a winning record.
• The Mariners have led after 5 innings in eight of their last nine Thursday day games as favorites.

• Probable Starting Pitcher: Shane Baz      Record this season: 4-6      ERA: 4.06
• Road Record: 1-4
• Last 5 against Mariners: 1-0

Why the Baltimore Orioles will win

• The Orioles have won seven of their last eight games as road underdogs against the Mariners.
• The Mariners have lost four of their last five games as home favorites against AL East opponents.
• The Mariners have failed to cover the run line in each of their last nine Thursday games as favorites against AL East opponents.
• The underdogs have covered the run line in nine of the Orioles’ last 10 games at T-Mobile Park.
• The Mariners have trailed after 3 innings in 10 of their last 12 games as favorites against AL East opponents.
• The Mariners have lost the first inning in three of their last four home games against AL East opponents.
• The Mariners have trailed after 5 innings in four of their last five games as home favorites against AL East opponents.

Total Runs Facts

• Each of the Mariners’ last five games after playing the previous day have gone OVER the total runs line.
• Each of the Orioles’ last four road games after playing the previous day have gone OVER the total runs line.
• The ‘Inning 1 UNDER 0.5 runs’ market has hit in nine of the last 10 day games between the Orioles and Mariners.
• The ‘Inning 1 UNDER 0.5 runs’ market has hit in nine of the Orioles’ last 10 day games against American League opponents.

Seattle Mariners Player Prop Facts

• Cal Raleigh has hit a home run in four of the Mariners’ last six home games against AL East opponents that held a losing record.
• Julio Rodriguez has recorded at least one hit in each of the Mariners’ last 18 home games against AL opponents.

Baltimore Orioles Player Prop Facts

• Colton Cowser has hit a home run in five of the Orioles’ last nine day games.
• Jordan Westburg has recorded at least one hit in each of his last eight appearances with the Orioles as road underdogs against AL West opponents.
• Taylor Ward ranks 6th amongst qualified players for On Base Percentage (.399) this season.

Matchup/League Facts

• The Mariners rank 1st in the league for walks allowed this season (193).
• The Mariners rank 28th in the league for doubles this season (96).
• The Orioles rank 28th in the league for opponent batting average this season (.260).
• The Orioles rank 27th in the league for strikeouts against this season (673).

Orioles vs Mariners Prediction

The Orioles are 3-1 in their last 4 meetings against the Mariners and have won two of their last three visits in Seattle.

In this Orioles vs Mariners Prediction, the Mariners are coming as -160 home favorites. I like the Orioles as road dogs in this matchup, as Woo has been in terrible form, having given up 12 runs in his last two starts. On the flip side, Baz has been very good as of late, having given up two runs or less in each of his last five starts. On top of that, the Mariners rank just 27^th against right-handed pitching in the last 10 days. Take the Orioles for plus money.