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Giants vs. Mariners Odds & Betting Predictions - July 18, 2026

Giants at Mariners

2:10 am • NBCS-BA

San Francisco Giants

41-55
@

Seattle Mariners

48-49
Starting Pitchers
pitcherteameraw-l
Bryce Miller logoB.MillerSeattle Mariners logo2.194-3
Landen Roupp logoL.RouppSan Francisco Giants logo4.276-8

Giants at Mariners Odds

Spread, Total, Moneyline

MatchupOpenSpreadTotalMoneyline
Giants
41-55
+1.5
+1.5-145
o7-120
+155
Mariners
48-49
u7.5
-1.5+120
u7+100
-189
location pinSaturday 2:10 a.m.
July 18, 2026
T-Mobile ParkSeattle
thermometer image72°Fahrenheit
rain image0%Rain
wind image4Wind
Giants vs. Mariners Expert Picks
Kevin Thomas
Kevin Thomas
Last 30d: 5-3-0 (+3.6u)
B.Miller o5.5 Ks-150
1u
YBK Picks.com
Last 30d: 10-12-1 (-3.1u)
SEA -1-130
2u
Kenny Ducey
Kenny Ducey
Last 30d: 4-7-0 (-2.7u)
SF +165
1u
Payoff Pitch Podcast
Payoff Pitch Podcast
Last 30d: 30-58-5 (-4.3u)
D.Cavanaugh o1.5 Hitter Strikeouts+221
0.5u
@DerekCarty ⭐️⭐️ https://myaction.app/r916FMdTQ4b
SEA -146
1u
@Zerillo ⭐️⭐️⭐️ https://myaction.app/r916FMdTQ4b
B.Miller u17.5 Outs+136
1u
@DerekCarty ⭐️⭐️⭐️ https://myaction.app/r916FMdTQ4b
D.Cavanaugh o0.5 RBI+425
1u
@DerekCarty ⭐️⭐️⭐️ https://myaction.app/r916FMdTQ4b
Grant Neiffer
Grant Neiffer
Last 30d: 16-87-4 (-5.4u)
R.Devers o0.5 HR+400
0.25u
Brian Bitler
Brian Bitler
Last 30d: 48-60-0 (-34.3u)
Under 7+110
3u
Zense
Zense
Last 30d: 16-12-4 (+0.4u)
SEA -152
1u
JOIN MY TELEGRAM CHANNEL LINK IN BIO FOR MORE PICKS
Sean Zerillo
Sean Zerillo
Last 30d: 117-122-8 (-3.0u)
SEA -146
0.73u
Bet to -160
Frank Ammirante
Frank Ammirante
Last 30d: 350-392-5 (-36.6u)
Under 7+100
1u
B.Miller o5.5 Ks-114
1.14u

Giants vs. Mariners Previews & Analysis

  • Kenny's Pick for Giants vs Mariners article feature image

    Kenny's Pick for Giants vs Mariners

    Kenny Ducey•
    Jul 17, 2026 UTC
  • Adam Trigger's Triple-A Baseball Bets for Friday article feature image

    Adam Trigger's Triple-A Baseball Bets for Friday

    Adam Trigger•
    Jul 17, 2026 UTC
  • Opening Pitch: Zerillo's MLB Projection for Friday's Slate article feature image

    Opening Pitch: Zerillo's MLB Projection for Friday's Slate

    Sean Zerillo•
    Jul 16, 2026 UTC
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Prop Odds Comparison

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Line Movement Tracker

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Giants vs. Mariners Public Betting Percentages

Away Logo

Giants

Public

Home Logo

Mariners

6%

Bets%

94%

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 17-33 in their road games against the spread
  • The totals have gone OVER in 3 of Mariners' last 5 games
  • The totals have gone OVER in 22 of Mariners' 47 last games at home

Matchup History

Against the Spread (ATS) History

overallhomeawayfavoriteunderdog
Mariners		36-6119-2817-3331-513-10
Giants		44-5222-2522-2716-2128-30

Over/Under History

overallhome o/uaway o/ufavorite o/uunderdog o/u
Mariners		46-47-422-24-124-23-339-40-37-5-1
Giants		44-46-621-24-223-22-419-15-324-31-3

Straight-Up (ML) History

overallhomeawayfavoriteunderdog
Mariners		48-4927-2021-2943-393-10
Giants		41-5522-2519-3018-1923-35

Last 5 Matchups

dateopponentscorespreadover/undermoneyline
Jul 12th@TBW 8-2+1.5 WO 8SEA +125
Jul 11th@TBL 1-6-1.5 LU 7TB -109
Jul 10th@TBL 2-7+1.5 LO 8.5TB +109
Jul 9th@MIAL 4-8-1.5 LO 8MIA -130
Jul 8th@MIAL 0-2-1.5 LU 8.5MIA -128

Mariners vs. Giants Injury Updates

Mariners Injuries

    Giants Injuries

    • Hayden Birdsong
      SP

      Birdsong is out with arm

      Out

    See more MLB Injuries Right Arrow
    Giants vs. Mariners Starting Lineups
    Giants Starting Lineup
    Projected
    PITCHERW-LERAWHIPK/9
    Landen Roupp logoRL.Roupp, P6-84.271.3099.65
    HITTERSAVGOBPSLGHR
    Luis Arraez logo1L.Arraez, 2B.330.369.4604
    Bryce Eldridge logo2B.Eldridge, DH.271.364.4688
    Casey Schmitt logo3C.Schmitt, 3B.280.308.49719
    Rafael Devers logo4R.Devers, 1B.249.319.47919
    Heliot Ramos logo5H.Ramos, LF.275.311.4688
    Jung Hoo Lee logo6J.Lee, RF.302.333.4295
    Willy Adames logo7W.Adames, SS.230.281.42015
    Drew Gilbert logo8D.Gilbert, CF.237.318.3744
    Drew Cavanaugh logo9D.Cavanaugh, C.219.324.2190
    Mariners Starting Lineup
    Projected
    PITCHERW-LERAWHIPK/9
    Bryce Miller logoRB.Miller, P4-32.190.83210.14
    HITTERSAVGOBPSLGHR
    J.P. Crawford logo1J.Crawford, 3B.218.334.35910
    Randy Arozarena logo2R.Arozarena, LF.286.380.45811
    Dominic Canzone logo3D.Canzone, DH.264.335.52915
    Cal Raleigh logo4C.Raleigh, C.169.271.3109
    Josh Naylor logo5J.Naylor, 1B.252.317.3548
    Cole Young logo6C.Young, 2B.253.313.39411
    Luke Raley logo7L.Raley, RF.229.288.45314
    Victor Robles logo8V.Robles, CF.216.267.2470
    Colt Emerson logo9C.Emerson, SS.201.275.3967

    Giants vs. Mariners Odds Comparison

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    Giants at Mariners Team Totals

    MatchupOverUnder
    Giants
    41-55
    N/A
    N/A
    Mariners
    48-49
    N/A
    N/A