Rubuta ci gaba ga wannan sakin layi - Miller ya fara wasan farko na farko a ranar 3 ga Oktoba, a kan Cincinnati Reds. Miller ya buga wasanni shida, yana ba da dama guda ɗaya, kuma ya buga bakwai. Ya bayyana sau biyu a cikin taimako ga Cardinals a lokacin 2012 National League Championship Series
(NLCS) a kan San Francisco Giants, yana ba da izini huɗu da gudu biyu a cikin innings. A wannan kakar, Miller ya kammala wasannin da aka haɗu a cikin babban gasar zakarun na yau da kullun, postseason da ƙananan wasannin.