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

Orioles at Mariners

1:40 am • MASN
@
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
34-40
+1.5
+1.5-196
o7.5-110
+112
Mariners
38-36
u7.5
-1.5+162
u7.5-110
-135
location pinThursday 1:40 a.m.
June 18, 2026
T-Mobile ParkSeattle
thermometer image72°Fahrenheit
rain image0%Rain
wind image6Wind
Orioles vs. Mariners Expert Picks
Austin Pendergrass
Austin Pendergrass
Last 30d: 32-20-1 (+4.7u)
D.Canzone o0.5 Hits-170
0.5u
Player Prop Savant
Player Prop Savant
Last 30d: 100-70-0 (+23.0u)
G.Kirby o6.5 Ks+125
0.8u
Kenny Ducey
Kenny Ducey
Last 30d: 9-4-0 (+7.2u)
BAL +117
1u
Frank Ammirante
Frank Ammirante
Last 30d: 280-254-11 (+30.2u)
Under 7.5-110
1.1u
K.Bradish o5.5 Ks-110
1.1u
Under 0.5 (1st Inn)-132
1.32u
Brian Bitler
Brian Bitler
Last 30d: 93-88-1 (+53.0u)
BAL +117
3u
Sean Zerillo
Sean Zerillo
Last 30d: 162-130-11 (+5.9u)
Under 7.5-110
0.55u
Bet to -120
Adam Kaufman
Adam Kaufman
Last 30d: 90-92-0 (-12.9u)
SEA -137
1.37u
Frank Ammirante
Frank Ammirante
Last 30d: 280-254-11 (+30.2u)
G.Kirby o6.5 Ks+109
0.92u

Orioles vs. Mariners Previews & Analysis

  • Orioles vs. Mariners: Kirby Faces Trouble article feature image

    Orioles vs. Mariners: Kirby Faces Trouble

    Kenny Ducey
    Jun 17, 2026 UTC
  • Our 4 MLB Best Bets for Wednesday Afternoon article feature image

    Our 4 MLB Best Bets for Wednesday Afternoon

    Action Network Staff
    Jun 17, 2026 UTC
  • Zerillo's Action App MLB Card for Wednesday article feature image

    Zerillo's Action App MLB Card for Wednesday

    Tanner McGrath
    Jun 17, 2026 UTC
See more MLB Coverage Right Arrow

Prop Odds Comparison

Right Arrow
Right Arrow

No props found

Line Movement Tracker

Right Arrow
Right Arrow

Orioles vs. Mariners Public Betting Percentages

Away Logo

Orioles

Public

31%

Bets%

69%

Money%

Matchup History

Against the Spread (ATS) History

overallhomeawayfavoriteunderdog
Mariners
28-4613-2315-2326-422-4
Orioles
35-3922-1913-2016-2019-19

Over/Under History

overallhome o/uaway o/ufavorite o/uunderdog o/u
Mariners
35-36-317-18-118-18-233-32-32-4
Orioles
42-29-322-17-220-12-119-15-223-14-1

Straight-Up (ML) History

overallhomeawayfavoriteunderdog
Mariners
38-3620-1618-2036-322-4
Orioles
34-4022-1912-2118-1816-22

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

    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.257.402.3543
    Gunnar Henderson logo2G.Henderson, SS.224.293.41314
    Adley Rutschman logo3A.Rutschman, C.264.341.4778
    Pete Alonso logo4P.Alonso, 1B.251.338.47016
    Samuel Basallo logo5S.Basallo, DH.258.320.46510
    Leody Taveras logo6L.Taveras, CF.255.338.3672
    Tyler O'Neill logo7T.O'Neill, RF.190.285.2812
    Jackson Holliday logo8J.Holliday, 2B.189.271.3513
    Blaze Alexander logo9B.Alexander, 3B.297.349.4132
    Mariners Starting Lineup
    Projected
    PITCHERW-LERAWHIPK/9
    George Kirby logoRG.Kirby, P5-64.071.3107.93
    HITTERSAVGOBPSLGHR
    J.P. Crawford logo1J.Crawford, 3B.231.363.41010
    Cal Raleigh logo2C.Raleigh, C.165.249.3177
    Julio Rodriguez logo3J.Rodriguez, CF.248.310.42613
    Dominic Canzone logo4D.Canzone, DH.287.357.55510
    Cole Young logo5C.Young, 2B.257.319.3575
    Victor Robles logo6V.Robles, RF.277.292.3190
    Colt Emerson logo7C.Emerson, SS.241.310.5576
    Connor Joe logo8C.Joe, LF.182.308.3331
    Miles Mastrobuoni logo9M.Mastrobuoni, 1B.176.250.1760

    Orioles vs. Mariners Odds Comparison

    Right Arrow

    Could not load odds

    Orioles at Mariners Team Totals

    MatchupOverUnder
    Orioles
    34-40
    N/A
    N/A
    Mariners
    38-36
    N/A
    N/A