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Orioles vs. Mariners Odds & Betting Predictions - June 18, 2026

Orioles at Mariners

1:40 am • MASN

Baltimore Orioles

34-39
@

Seattle Mariners

37-36
Starting Pitchers
pitcherteameraw-l
George Kirby logoG.KirbySeattle Mariners logo4.075-6
Kyle Bradish logoK.BradishBaltimore Orioles logo4.303-7

Orioles at Mariners Odds

Spread, Total, Moneyline

MatchupOpenSpreadTotalMoneyline
Orioles
34-39
+1.5
+1.5-180
o7.5-111
+124
Mariners
37-36
u7.5
-1.5+145
u7.5-108
-149
location pinThursday 1:40 a.m.
June 18, 2026
T-Mobile ParkSeattle
thermometer image73°Fahrenheit
rain image0%Rain
wind image8Wind

Prop Odds Comparison

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Line Movement Tracker

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Orioles vs. Mariners Public Betting Percentages

Away Logo

Orioles

Public

Home Logo

Mariners

22%

Bets%

78%

Money%

MLB Public Betting Right Arrow

Betting Trends

  • Mariners are 1-4 in their last 5 games.
  • Mariners are 1-4 in their last 5 games against the spread
  • Mariners are 15-23 in their road games against the spread
  • The totals have gone OVER in 4 of Mariners' last 5 games
  • The totals have gone OVER in 17 of Mariners' 35 last games at home

Matchup History

Against the Spread (ATS) History

overallhomeawayfavoriteunderdog
Mariners		27-4612-2315-2325-422-4
Orioles		35-3822-1913-1916-2019-18

Over/Under History

overallhome o/uaway o/ufavorite o/uunderdog o/u
Mariners		35-35-317-17-118-18-233-31-32-4
Orioles		42-28-322-17-220-11-119-15-223-13-1

Straight-Up (ML) History

overallhomeawayfavoriteunderdog
Mariners		37-3619-1618-2035-322-4
Orioles		34-3922-1912-2018-1816-21

Last 5 Matchups

dateopponentscorespreadover/undermoneyline
Jun 17thBALW 3-1-1.5 WU 7.5SEA -150
Jun 14th@WSHL 1-10-1.5 LO 10.5WSH -132
Jun 13th@WSHL 3-8-1.5 LO 9WSH -105
Jun 12th@WSHW 10-2-1.5 WO 9.5SEA -149
Jun 11th@BALL 5-7-1.5 LO 8.5BAL -117

Orioles vs. Mariners Injury Updates

Orioles Injuries

  • Heston Kjerstad
    LF

    Kjerstad is out with hamstring

    Out

  • Jordan Westburg
    3B

    Westburg is out with elbow

    Out

  • Dylan Beavers
    RF

    Dylan Beavers scratched Tuesday.

    Out

Mariners Injuries

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    Orioles vs. Mariners Starting Lineups
    Orioles Starting Lineup
    Projected
    PITCHERW-LERAWHIPK/9
    Kyle Bradish logoRK.Bradish, P3-74.291.5688.96
    HITTERSAVGOBPSLGHR
    Taylor Ward logo1T.Ward, LF.258.404.3523
    Gunnar Henderson logo2G.Henderson, SS.227.297.41814
    Adley Rutschman logo3A.Rutschman, DH.265.343.4818
    Pete Alonso logo4P.Alonso, 1B.253.335.47316
    Samuel Basallo logo5S.Basallo, C.258.321.46910
    Leody Taveras logo6L.Taveras, RF.259.343.3732
    Colton Cowser logo7C.Cowser, CF.223.312.3857
    Coby Mayo logo8C.Mayo, 3B.194.259.3839
    Jackson Holliday logo9J.Holliday, 2B.197.280.3663
    Mariners Starting Lineup
    Projected
    PITCHERW-LERAWHIPK/9
    George Kirby logoRG.Kirby, P5-64.071.3107.93
    HITTERSAVGOBPSLGHR
    J.P. Crawford logo1J.Crawford, 3B.228.356.40910
    Cal Raleigh logo2C.Raleigh, C.161.243.3177
    Julio Rodriguez logo3J.Rodriguez, CF.248.311.42913
    Luke Raley logo4L.Raley, RF.241.303.50314
    Dominic Canzone logo5D.Canzone, DH.286.354.55910
    Cole Young logo6C.Young, 2B.260.323.3625
    Victor Robles logo7V.Robles, LF.279.295.3260
    Colt Emerson logo8C.Emerson, SS.237.310.5666
    Miles Mastrobuoni logo9M.Mastrobuoni, 1B.188.222.1880

    Orioles vs. Mariners Odds Comparison

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    Orioles at Mariners Team Totals

    MatchupOverUnder
    Orioles
    34-39
    N/A
    N/A
    Mariners
    37-36
    N/A
    N/A