Baltimore Orioles vs Seattle Mariners Picks, Prediction, Odds, and Line Movement for Wednesday June 17 2026
Use Code WWWC Seattle hosts Baltimore with George Kirby facing Kyle Bradish and top MLB player props for Wednesday night.
Best Available Odds
Best Moneyline Odds: Seattle Mariners (-142 at DraftKings) / Baltimore Orioles (+125 at DraftKings)
Best Spread Odds: Seattle Mariners -1.5 (+150 at DraftKings) / Baltimore Orioles +1.5 (-160 at DraftKings)
Best Total Odds: Over 7.5 (-110 at DraftKings) / Under 7.5 (-107 at DraftKings)
Get Free $30 Credit for Premium Picks + Exclusive Discounts
Subscribe Now
Game Info
Date: June 17, 2026
Time: 9:40 PM EDT
Location: T-Mobile Park, Seattle, WA
TV: MASN, Mariners.TV
Baltimore Orioles vs Seattle Mariners Preview
The Seattle Mariners enter Wednesday at 38-36 and in first place in the AL West. Seattle improved to 20-16 at T-Mobile Park with Tuesday's 3-1 victory over Baltimore, receiving seven dominant innings from Logan Gilbert and a decisive two-run single from Cal Raleigh in his return from the injured list.
Raleigh's return provides an important middle-of-the-order bat for a Seattle lineup dealing with several injuries. J.P. Crawford also returned Tuesday after recovering from a right hand contusion, but Randy Arozarena was placed on the 10-day injured list with a left hamstring strain. Josh Naylor is dealing with right wrist soreness, while Luke Raley has lower-back tightness.
Seattle managed only four hits Tuesday, but it drew five walks and created enough traffic to break through in the seventh inning. Julio Rodríguez delivered an RBI single in the third, while Victor Robles and Colt Emerson started the winning rally with consecutive singles.
The Baltimore Orioles enter at 34-40 and have lost three consecutive games. Baltimore owns a 12-21 road record and managed only three hits in Tuesday's opener. Taylor Ward doubled on the first pitch of the game and scored on Samuel Basallo's RBI single, but the Orioles did not produce another run after the first inning.
Baltimore is also managing significant pitching injuries. Chris Bassitt and Cade Povich are on the 15-day injured list, while Dean Kremer and Zach Eflin remain on the 60-day injured list. The Orioles still have several dangerous hitters through Ward, Gunnar Henderson, Adley Rutschman, Pete Alonso, Basallo, and Colton Cowser, but the offense has struggled to sustain rallies during its current losing streak.
Starting Pitchers and Pitching Matchup
The Orioles will start right-hander Kyle Bradish, who enters at 3-7 with a 4.30 ERA, 1.57 WHIP, and 73 strikeouts. Bradish has shown periods of strong swing-and-miss production, but his elevated WHIP reflects the traffic he has allowed through hits and walks.
Bradish faced Seattle in Baltimore on June 11 and allowed five runs over four innings. Cole Young opened the game with a home run, while Luke Raley and Dominic Canzone later went deep in consecutive at-bats. The Orioles eventually won 7-5 after their bullpen delivered five scoreless innings, but Bradish struggled to protect an early six-run lead.
Seattle's current injury situation changes the rematch. Arozarena will not be available, while Naylor and Raley may also remain outside the starting lineup. Bradish therefore faces a less imposing version of the Mariners offense than the one that scored five runs against him last week.
The Mariners counter with right-hander George Kirby, who enters at 5-6 with a 4.07 ERA, 1.31 WHIP, and 74 strikeouts. Kirby has endured an uneven season, but his combination of velocity, command, and strikeout ability gives Seattle the stronger starting-pitching profile.
Kirby faced Baltimore on June 10 and struck out a season-high 10 batters over six innings. He held the Orioles scoreless through five before allowing three runs in the sixth, including a Pete Alonso home run and RBI doubles from Leody Taveras and Blaze Alexander. Seattle lost that game 7-2 after Baltimore added four runs against the bullpen.
Game Thesis: Seattle is the preferred side because Kirby has the stronger command profile, the Mariners are at home, and Baltimore enters on a three-game losing streak. However, Seattle's missing hitters reduce its offensive ceiling, while Bradish has enough strikeout ability to keep the game competitive. The most likely game script is another relatively low-scoring contest decided by pitching and late-inning execution.
⭐ Best Bet - Moneyline Pick: Seattle Mariners (-142)
The Mariners moneyline is the strongest selection. Kirby enters with a significantly lower WHIP than Bradish and showed in last week's meeting that he can miss bats throughout Baltimore's lineup. He recorded 10 strikeouts and kept the Orioles scoreless through the first five innings.
Seattle also has the home-field advantage and a rested late-inning combination after Andrés Muñoz needed only 16 pitches to close Tuesday's victory. Raleigh and Crawford returning to the lineup gives the Mariners more stability, even with Arozarena unavailable and Naylor and Raley dealing with injuries.
Bradish's 1.57 WHIP gives Seattle opportunities to create baserunners even if its power production is limited. The Mariners may not produce a large offensive total, but Kirby and the bullpen give them the better path to a close home victory.
Spread Pick: Baltimore Orioles +1.5 (-160)
Baltimore +1.5 fits the expectation of another competitive, lower-scoring game. Bradish struggled against Seattle last week, but the Mariners could be without three important offensive contributors who appeared in that previous matchup.
The Orioles also have several relievers capable of keeping the score close after Bradish exits. Tyler Wells threw three hitless innings in relief of Bradish on June 11, while Ryan Helsley has returned to the active roster to strengthen Baltimore's late-inning options.
The -160 price is expensive, but one run becomes more valuable in a matchup carrying a total of only 7.5. Seattle remains the preferred winner, while Baltimore +1.5 provides protection against a 3-2 or 4-3 final.
Total Pick: Under 7.5 (-107)
The Under 7.5 is the preferred total. Kirby has the strikeout ability and command to control a Baltimore offense that produced only three hits Tuesday, while Bradish faces a Seattle lineup missing Arozarena and potentially playing without Naylor and Raley.
T-Mobile Park also generally limits offensive production, particularly on deep fly balls. Tuesday's opener finished with four total runs, and both teams relied more on pitching than sustained offense.
There is risk because both starters allowed multiple runs when they faced these lineups last week. However, the current injury context and Seattle's home pitching environment point toward another game where four or five runs may be enough to win.
Top Player Prop Picks
George Kirby Over 1.5 Earned Runs (-167) The original analysis described a bet on Kirby allowing one or fewer earned runs, which contradicted the listed Over. The case for Over 1.5 is that Baltimore charged Kirby with three earned runs in six innings on June 10. Alonso homered in that meeting, while Ward, Henderson, Rutschman, and Basallo give the Orioles enough quality near the top of the lineup to produce at least two runs against the Seattle starter.
Kirby can still pitch effectively and allow two earned runs, so this prop does not require Baltimore to dominate the matchup or win the game. The price is heavy, but the Orioles need only one productive inning for the Over to cash.
Julio Rodríguez Over 0.5 Hits (-180) Rodríguez recorded an RBI single against Baltimore in Tuesday's opener and remains Seattle's most important healthy hitter. Bradish enters with a 1.57 WHIP and allowed five runs to the Mariners in their June 11 meeting, giving Rodríguez a strong opportunity to see pitches with runners on base.
Rodríguez should receive at least four plate appearances from his position near the top of the lineup. He can cash the prop against Bradish or one of Baltimore's relievers later in the game.
Taylor Ward Over 0.5 Hits (-190) The original article listed Ward Over 0.5 hits but incorrectly recommended the Under in the analysis. Ward doubled off the left-field wall on the first pitch of Tuesday's game and scored Baltimore's only run. His position at the top of the order gives him the maximum number of plate appearances against Kirby and the Seattle bullpen.
Ward has also shown the ability to drive Kirby's pitches for extra-base damage in previous meetings. Even in an Under game script, he has a reasonable path to record one hit before Seattle reaches its late-inning relievers.
Never Tried Winners and Whiners? Now Is Your Chance
- Get your first daily picks package for ONLY $1 using coupon code DOLLAR
- If the pick loses, we credit your account with 3 Flex Picks
- If the pick wins, we still give you 1 Flex Pick on the house
- Win or lose, you walk away ahead. One dollar. No catch.
- Check out more MLB predictions
Up To $1500 in Bonus Bets Paid Back if your First Bet Does Not Win
New Users – Bet $5 Get $200 in Bet Reset Tokens for 5 Days
