Baltimore Orioles vs Seattle Mariners Prediction, 6/18/2026 MLB Picks, Best Bets & Odds

Game: Baltimore Orioles vs Seattle Mariners

Date: Thursday, June 18, 2026

Location: T-Mobile Park in Seattle, WA

TV: MLB.TV

Odds/Point Spread: Baltimore (+125) Seattle (-150)

The Seattle Mariners (37-36) will compete against the Baltimore Orioles (34-39) at T-Mobile Park on Thursday. The line on this contest has Baltimore at +125 while Seattle is coming in at -150. The over/under comes in at 8.5. The expected starting pitchers will be Shane Baz and Bryan Woo.

The Orioles have accounted for 119 doubles as a unit and have hit 86 baseballs out of the park. Baltimore has a slugging percentage of .404 and have been called out on strikes 652 times, while taking a walk on 282 occasions. As a team, the Baltimore Orioles are notching 4.7 runs per game, which has them at 8th in the league. They have tallied 333 RBI's and 592 base knocks on the season, and their average at the plate sits at .243. They have 343 runs and have an OBP of .324.

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They have earned a strikeout to walk ratio of 2.18 and the pitching staff has recorded a WHIP of 1.40. Orioles pitchers have surrendered 86 home runs and 376 total runs (26th in the league). Baltimore has conceded 652 base knocks (9.1 per 9 innings) and 330 earned runs. The Orioles have compiled a team earned run average of 4.59 for the year (23rd in the league), and their staff has rung up 559 hitters. They have walked 256 opposing batters and their FIP comes in at 4.39 as a team so far this year.

Orioles bullpen pitchers have entered the game with players on base 66 times as well as having 65 appearances in high leverage situations. The bullpen have 36 holds this season (16th in MLB). The Orioles relief pitchers have accumulated a save rate of 69.6% and have come into the game in 60 save situations. They have tallied 16 saves this year and have not converted 7 of 23 save opportunities. The relief pitchers have inherited 94 base runners on the season and 22.3% of them crossing the plate. The Orioles have dispatched 244 relievers to the mound on the season.

The Baltimore Orioles have accumulated 1,942 putouts this year, as well as 641 assists and 41 errors. Their fielding percentage is at .984 which ranks 21st in pro baseball, and have accumulated 56 double plays. The Orioles have converted 68.7% of balls in play into outs out of their 5,826 innings on the field, ranking them 28th in the majors.

Baz has taken the hill for 368 innings and has earned 360 punch outs in his career. Baz (21-23 record in his career) has a FIP of 4.14 while he has gone up against 1,551 opposing hitters in the major leagues. His earned run average is 4.21 (172 earned runs allowed) and his career WHIP is 1.264. He has conceded 330 hits (8.1 hits per 9 innings) with 135 walks.

Seattle has a total of 94 home runs on the campaign and 302 RBIs. They have recorded 95 two-baggers, while walking 246 times and scoring 311 runs. The Seattle Mariners hold an on-base percentage of .316 and a batting average of .237 on the campaign. The Mariners hold a team SLG% of .397 and they are scoring 4.26 runs per contest (18th in the league). They have struck out on 621 instances (9th in the league) and have totaled 578 base hits.

The Seattle pitching staff have conceded 291 runs this year while holding a team ERA of 3.69 (266 earned runs conceded). They have conceded 72 homers and they surrender 4.04 runs per 9 innings (5th in MLB). The Mariners are sitting with a team WHIP of 1.200 in addition to having a FIP of 3.67 as a squad so far this year. They have earned a strikeout to walk ratio of 8.70 (625 strikeouts against 190 walks). They are currently ranked 17th in the league as a staff in total hits given up with 589.

They rank 22nd in baseball with a save rate of 55.2%, and they have sent 223 relievers to the mound so far this year. Their bullpen pitchers have stepped onto the mound 85 times in high leverage situations and also on 57 occasions with runners on. With 70 save situations, the Mariners have amassed 40 holds in addition to 13 blown saves. Seattle has called on relievers to enter the game in 29 save opportunities and they have tallied 16 saves. Seattle relievers have an inherited score percentage of 21.1% out of their 76 inherited base runners.

In 5,841 innings played, the Mariners are sitting with a efficiency on defense of 69.6% (21st in baseball). The Seattle Mariners have turned 68 double plays and have a fielding percentage of .987 (13th in the majors). The Mariners have recorded 593 assists, 34 errors and have a tally of 1,947 putouts so far this year.

During his pro baseball career, Woo has allowed 378 hits while he has totaled 471 K's in 477 frames. Woo (33-20 career record) has earned a 3.39 ERA while giving up 7.1 hits per 9 innings. He has allowed 180 ER's while holding a WHIP of 0.991 and having a FIP of 3.3. His strikeout to walk ratio is 4.96 and he has faced 1,903 opposing batters during his pro baseball career.

Who will win tonight's MLB game against the spread or moneyline?

Parlay's Pundit's Pick: Take Seattle (-150) and under 8.5 runs

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