Seattle Mariners vs Baltimore Orioles Prediction, 8/12/2025 MLB Picks, Best Bets & Odds

Game: Seattle Mariners vs Baltimore Orioles

Date: Tuesday, August 12, 2025

Location: Oriole Park at Camden Yards in Baltimore, MD

TV: MASN

Odds/Point Spread: Seattle (-128) Baltimore (+106)

The Seattle Mariners (66-53) are hitting the road to Oriole Park at Camden Yards on Tuesday where they will compete against the Baltimore Orioles (53-65). The moneyline on this matchup has the Mariners at -128 while the Orioles open at +106. The over/under is 8. The men taking the mound will be George Kirby and Dean Kremer.

As a squad, the Seattle Mariners are earning 4.6 runs per contest, which has them at 10th in baseball. They have 547 runs and hold an on-base percentage of .321. The Mariners have hit 156 doubles as a team and have hit 171 balls out of the stadium. They have amassed 524 runs batted in in addition to 987 hits so far this season, and their average at the plate is .243. Seattle owns a slugging percentage of .411 and have struck out 1,062 times, while drawing a walk on 408 occasions.

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Their strikeout to walk ratio is 2.84 and their pitching staff holds a WHIP of 1.23. Mariners pitchers have conceded 140 home runs and 510 runs in total (16th in baseball). Seattle has given up 971 base hits (8.1 per 9 innings) as well as 457 earned runs. The Mariners have compiled a team earned run average of 3.81 for the year (10th in the league), and their staff has rung up 1,018 batters. They have walked 358 opposing players and their FIP sits at 4.06 as a team this year.

Mariners bullpen pitchers have entered the contest with opponents on base 101 times as well as having 168 appearances in high leverage situations. The bullpen have a total of 66 holds for the year (16th in MLB). The Mariners bullpen have accumulated a save rate of 60.8% and have stepped onto the mound in 117 save situations. They have accumulated 31 saves on the campaign and have not converted 20 out of their 51 save opportunities. The relievers have inherited 109 base runners this season with 25.7% of those runners crossed home plate. The Mariners have dispatched 399 relievers to the mound on the year.

The Mariners have turned 71.0% of balls hit into play into outs out of 9,726 innings on the field, which ranks them 8th in MLB. The San Francisco Giants have earned a total of 3,242 putouts over the course of the season, in addition to 1,004 assists and 47 errors. Their fielding rate sits at .989 which is 4th in pro baseball, and they have turned 88 double plays.

Kirby (42-31 career record) has a FIP of 3.46 and he has gone up against 2,396 hitters in the majors. He has surrendered 563 base knocks (8.6 hits per nine innings) and has 84 walks. His earned run average is 3.51 (230 ER's allowed) and his career WHIP is 1.098. Kirby has taken the mound for 589 innings and has accounted for 567 K's so far in his career.

Baltimore has recorded 144 home runs so far this year to go along with 479 RBIs. They have 192 doubles, while getting a free base 321 times as well as scoring 505 runs. The Baltimore Orioles have an on-base percentage of .304 and a batting average of .240 on the year. The Orioles hold a team slugging percentage of .405 and they score 4.28 runs per outing (18th in MLB). They have been called out on strikes on 1,020 occasions (11th in the league) and have accounted for 945 base knocks.

The Orioles have a team WHIP of 1.410 and have a FIP of 4.53 as a pitching staff for the year. Their strikeout to walk ratio comes in at 8.40 (970 strikeouts vs 387 bases on balls). They are currently ranked 28th in the league as a staff in total hits given up with 1,073. They have allowed 164 long balls and they relinquish 5.16 runs per 9 innings (27th in the league). The Baltimore pitching staff have surrendered 593 runs for the year while having a team ERA of 4.85 (558 earned runs surrendered).

Sitting with 125 save situations, the Orioles have accumulated 79 holds and 15 blown saves. Baltimore has called on relievers to enter the contest in 43 save chances and they have walked away with 28 saves. Their relievers have stepped onto the hill 122 times in high leverage situations in addition to 118 occasions with runners on base. Baltimore bullpen pitchers hold an inherited score percentage of 22.4% out of their 161 inherited runners. They are ranked 11th in the league with a save rate of 65.1%, and they have sent 401 relievers onto the field on the season.

Out of their 9,318 innings played, the Orioles have accumulated a defensive efficiency of 67.9% (28th in the majors). The Baltimore Orioles have gotten 84 double plays and own a fielding percentage of .985 (19th in baseball). The Orioles have 1,026 assists, 61 errors and have earned 3,106 putouts for the year.

So far in his MLB career, Kremer has allowed 616 hits and he has 546 strikeouts in 632 innings pitched. Kremer (38-38 career win-loss mark) holds a 4.30 earned run average while giving up 8.8 hits per nine innings. He has allowed 302 ER's while earning a WHIP of 1.310 and being the owner of a FIP of 4.2. His strikeout to walk ratio is 2.58 and he has faced 2,682 opposing hitters in his pro baseball career.

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

Tony Sink's Pick: Take Baltimore (+106)

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