Turn your sports knowledge into winning predictions
21+ or 18+ in Certain Locations. 19+ in ON. Please Play Responsibly. Gambling Problem? Call 1-800-GAMBLER. Visit connexontario.ca or Call 1-866-531-2600 in ON.
No Code Needed

Athletics vs. Mariners Odds & Betting Predictions - April 21, 2026

Athletics at Mariners

1:40 am • NBCS-CA

Athletics

38-40
6
6 - 4

Seattle Mariners

40-39
4
Starting Pitchers
pitcherteameraw-l
Emerson Hancock logoE.HancockSeattle Mariners logo3.605-4
J.T. Ginn logoJ.GinnAthletics logo3.165-4

Athletics at Mariners Odds

Spread, Total, Moneyline

MatchupOpenSpreadTotalMoneyline
Athletics
38-40
+1.5
+1.5-170
o8-116
+124
Mariners
40-39
u8.5
-1.5+147
u8-106
-149
location pinTuesday 1:40 a.m.
April 21, 2026
T-Mobile ParkSeattle
Athletics vs. Mariners Expert Picks
Player Prop Savant
Player Prop Savant
Last 30d: 104-75-0 (+24.6u)
Over 7.5 (Live)-140
1u
Under 9.5 (Live)-110
1.1u
Sir Lockselot
Sir Lockselot
Last 30d: 14-20-0 (-3.4u)
ATH +124
3.72u
📚Onyx
OldSchool0909
Last 30d: 21-18-1 (+6.4u)
ATH +125
1.25u
Top Shelf Action 🥃
Top Shelf Action 🥃
Last 30d: 7-12-2 (-3.7u)
E.Hancock o5.5 Ks+140
0.41u
#EV Circa +125 BM +122 BO +115
Matt Trollo
Matt Trollo
Last 30d: 74-82-9 (-9.6u)
SEA -135 (F5)
0.5u
(B365) A bit high - Ginn has some difficulty with LHBs, also see notes on F5 for Hancock
Sean Zerillo
Sean Zerillo
Last 30d: 153-129-9 (+4.1u)
Under 8-102
0.51u
Bet to 7.5 (-105)
Wags Wins
Wags Wins
Last 30d: 161-162-0 (-24.8u)
Under 8-102
1.25u
ATH +126
1.26u
Picks Office
Picks Office
Last 30d: 142-142-13 (-11.0u)
ATH +130
1.3u
Join Discord. All picks posted before 8am https://discord.gg/HjKxYKdSUy
Kenny Ducey
Kenny Ducey
Last 30d: 8-4-0 (+5.3u)
Under 8.5-120
1.2u
Grant Neiffer
Grant Neiffer
Last 30d: 37-119-3 (+9.8u)
N.Kurtz o0.5 HR+375
0.94u
S.Langeliers o0.5 HR+433
1.08u
Payoff Pitch Podcast
Payoff Pitch Podcast
Last 30d: 54-96-11 (-13.7u)
ATH +126
0.63u
@Tannerstruth ⭐️⭐️ https://myaction.app/CL26XueLu2b
Ryan Minion
Ryan Minion
Last 30d: 293-289-17 (+54.0u)
Under 0.5 (1st Inn)-115
$1.15
Frank Ammirante
Frank Ammirante
Last 30d: 329-277-11 (+55.5u)
Under 4.5 (F5)-105
1u
Doug Ziefel
Doug Ziefel
Last 30d: 161-189-11 (-4.3u)
E.Hancock u17.5 Outs+100
0.5u
J.Ginn u4.5 Ks-115
0.58u
Matt Trollo
Matt Trollo
Last 30d: 74-82-9 (-9.6u)
Under 8-105
1.05u
Ginn just 6.4 K-BB% this year (17.3% LY), but keeps the ball on the ground (50%) with weak contact (3.06 xERA), Hancock legit improved (2.77 SIERA/2.80 xERA) - most negative run environment, cool temps.

Athletics vs. Mariners Previews & Analysis

  • A's vs Mariners: Kenny's Over/Under Pick for Tonight article feature image

    A's vs Mariners: Kenny's Over/Under Pick for Tonight

    Kenny Ducey•
    Apr 20, 2026 UTC
  • Grant's 5 Home Run Bets for Monday article feature image

    Grant's 5 Home Run Bets for Monday

    Grant Neiffer•
    Apr 20, 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

Athletics vs. Mariners Public Betting Percentages

Away Logo

Athletics

Public

Home Logo

Mariners

16%

Bets%

84%

Money%

MLB Public Betting Right Arrow

Betting Trends

  • Mariners are 2-3 in their last 5 games.
  • Mariners are 2-3 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 2 of Mariners' last 5 games
  • The totals have gone OVER in 19 of Mariners' 41 last games at home

Matchup History

Against the Spread (ATS) History

overallhomeawayfavoriteunderdog
Mariners		30-4915-2615-2328-452-4
Athletics		41-3718-2323-1412-1728-19

Over/Under History

overallhome o/uaway o/ufavorite o/uunderdog o/u
Mariners		37-39-319-21-118-18-235-35-32-4
Athletics		38-37-324-15-214-22-113-14-224-22-1

Straight-Up (ML) History

overallhomeawayfavoriteunderdog
Mariners		40-3922-1918-2038-352-4
Athletics		38-4018-2320-1714-1523-24

Last 5 Matchups

dateopponentscorespreadover/undermoneyline
Apr 19thTEXW 5-2-1.5 WU 7.5SEA -140
Apr 18thTEXW 7-3-1.5 WO 7SEA -141
Apr 18thTEXL 0-5-1.5 LU 6.5TEX -131
Apr 17th@SDL 2-5-1.5 LU 8.5SD -122
Apr 16th@SDL 6-7-O 8SD -111

Mariners vs. Athletics Injury Updates

Mariners Injuries

    Athletics Injuries

    • Gunnar Hoglund
      SP

      Hoglund is out with back

      Out

    See more MLB Injuries Right Arrow
    Athletics vs. Mariners Box Score
    Athletics Player Stats
    Projected
    PITCHERPCIPKER
    J.T. Ginn logoRJ.Ginn, P925.163
    Hogan Harris logoLH.Harris, P251.220
    Mark Leiter logoRM.Leiter, P19110
    Joel Kuhnel logoRJ.Kuhnel, P10101
    HITTERSH-ABRHRRBI
    Nick Kurtz logo1N.Kurtz, 1B1-4111
    Shea Langeliers logo2S.Langeliers, C1-5111
    Carlos Cortes logo3C.Cortes, DH4-5111
    Tyler Soderstrom logo4T.Soderstrom, LF2-5100
    Jacob Wilson logo5J.Wilson, SS2-4100
    Jeff McNeil logo6J.McNeil, 2B1-3100
    Max Muncy logo7M.Muncy, 3B0-2001
    Lawrence Butler logo8L.Butler, RF2-4002
    Zack Gelof logo9Z.Gelof, CF0-4000
    Denzel Clarke logo9D.Clarke, CF0-0000
    Mariners Player Stats
    Projected
    PITCHERPCIPKER
    Emerson Hancock logoRE.Hancock, P85533
    Jose A. Ferrer logoLJ.Ferrer, P19100
    Matt Brash logoRM.Brash, P15110
    Casey Legumina logoRC.Legumina, P23103
    Cooper Criswell logoRC.Criswell, P9100
    HITTERSH-ABRHRRBI
    J.P. Crawford logo1J.Crawford, SS0-4000
    Cal Raleigh logo2C.Raleigh, C1-5111
    Julio Rodriguez logo3J.Rodriguez, CF2-4100
    Josh Naylor logo4J.Naylor, 1B3-4001
    Randy Arozarena logo5R.Arozarena, LF0-4000
    Luke Raley logo6L.Raley, DH0-2000
    Rob Refsnyder logo6R.Refsnyder, PH0-2000
    Rob Refsnyder logo6R.Refsnyder, DH0-2000
    Dominic Canzone logo7D.Canzone, RF2-4111
    Cole Young logo8C.Young, 2B1-4100
    Leo Rivas logo9L.Rivas, 3B1-4001

    Athletics vs. Mariners Odds Comparison

    Right Arrow

    Could not load odds

    See more MLB Odds Right Arrow

    Athletics at Mariners Team Totals

    MatchupOverUnder
    Athletics
    38-40
    N/A
    N/A
    Mariners
    40-39
    N/A
    N/A