Ku qor sii wadida sadarkani - Saddex wareeg oo playoff ah sanadkii 2004, Walker wuxuu isku daray inuu garaacay.293 /.379 /.707 oo leh labo guri oo guryo ah tartan kasta, isagoo dhigay rikoor xayeysiis ah oo loogu talagalay guryaha guryaha lagu garaacay ee uu garaacay qof bidix ah oo garaacaya hal xilli ciyaareed. Walker wuxuu ciyaartii ugu horeysay ee playoff-ka la ciyaaray Cardinals kulankii 1aad ee NLDS ee ka dhanka ahaa Dodgers, isagoo laba jeer dhaliyay laba gool wuxuuna dhaliyay afar gool guul 8-3 Cardinals. Wuxuu noqday Cardinalkii ugu horreeyay ee ciyaar badan oo ciyaar ah ku leh ciyaarta LDS. Ciyaarta 1aad ee tartanka horyaalka qaranka
(NLCS) oo ay Houston Astros, uu ahaa home run gaaban garaacaya for wareegga.