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The upcoming MLB game on April 21, 2026, features the Athletics vs Seattle Mariners at T-Mobile Park in Seattle, WA. Broadcasted on Seam, this matchup offers insightful betting tips. Seattle's predicted score is 3.89 against Athletics' 3.57, with Athletics favored to cover the +1.5 spread at a 63.1% probability. Seattle's hitters perform better against right-handed pitchers, which could influence the game's dynamics. Our prediction model has demonstrated a strong hit rate in point spread markets over the last 10 games, adding value to these picks. For detailed analysis, visit our MLB picks and predictions page.
PITP. Skenes (R) 41-40100% -201BetOnline | |||||||
![]() DETK. Montero (R) 34-47100% -114BetAnything | |||||||
BALT. Rogers (L) 38-44100% -128BetOnline | |||||||
![]() TORP. Corbin (L) 39-4267% +102Everygame | |||||||
NYMUndecided 34-47- +142BetOnline | |||||||
BOSP. Tolle (L) 33-46100% +106Everygame | |||||||
![]() CLEJ. Cantillo (L) 42-39100% -108BetOnline | |||||||
TBN. Martinez (R) 45-33- -131Bookmaker | |||||||
![]() CWSD. Sandlin (R) 41-38- -135MyBookie | |||||||
MILJ. Misiorowski (R) 49-29- -255BetOnline | |||||||
![]() MINT. Bradley (R) 38-440% -157Bet105 | |||||||
STLM. McGreevy (R) 42-3633% -109Bookmaker | |||||||
LAAW. Ureña (R) 34-48100% +112BetOnline | |||||||
![]() SDW. Buehler (R) 42-3750% +135Everygame |