Dhameystir weedha soo socota: Kadib laba xilli ciyaareed oo guul leh oo aan lahayn muuqaal ciyaareed, Astros waxay ahaayeen kuwa ugu horreeya ee doorbidaya inay ku guuleystaan 2004 NL pennant. Waxay ku darsadeen xiddiga Andy Pettitte liiska xiddigaha oo ay horay ugu jireen xiddigo caan ah sida Lance Berkman iyo Jeff Kent iyo sidoo kale halyeeyada Bagwell iyo Biggio. Roger Clemens, oo ka fariistay ka dib xilli ciyaareedkii New York Yankees, ayaa ogolaaday inuu ku biiro saaxiibkii hore ee Pettitte ee Astros 2004. Heshiiska hal sano ah waxaa ku jiray shuruudo gaar ah, sida ikhtiyaarka Clemens inuu guriga ku sii joogo Houston safarada wadada ee la xushay markii uusan qorsheyneynin inuu tuuro. In kasta oo saadaasha hore ee guusha, Astros waxay lahaayeen rikoor dhexdhexaad ah 44 <unk> 44 inta lagu gudajiray nasashada All-Star. Dhibaatooyinka ugu waaweynaa waxaa ka mid ahaa in aanay ciyaartoyda ciyaarta ku badneyn iyo in ay ciyaartoyda ciyaarta ku badneyd ay ciyaarta ku badnaayeen. Ka dib markii lagu aflagaadeeyay ciyaartii 2004 All-Star Game ee lagu qabtay Houston, tababare Jimy Williams ayaa shaqada laga eryay waxaana lagu beddelay Phil Garner, oo xiddig ka ahaa kooxdii ku guuleysatay horyaalka 1986 Astros. Astros waxay ku raaxaysteen rikoor 46-26 qeybtii labaad ee xilli ciyaareedkii Garner waxayna ku guuleysteen booska NL wild-card. Astros ayaa 3-2 kaga adkaatay Braves horyaalka Division Series, laakiin waxay lumin doonaan
Horyaalka Qaranka ee St. Louis Cardinals todobo kulan gudihiis. Clemens wuxuu kasbaday abaalmarinta toddobaad ee Cy Young Award sanadkii 2004. Intaa waxaa dheer, ku darista bartamihii xilli ciyaareedka ee Carlos Beltrán oo ku ganacsanaya Kansas City Royals ayaa Astros si weyn uga caawisay orodkooda playoff. In kasta oo wararka xanta ah ee isweydaarsiga xilli-ciyaareedka, Beltrán wuxuu caddeyn doonaa inuu wax ku ool u yahay rajada kooxda, isagoo garaacaya sideed guri oo ku yaal xilli-ciyaareedka. In kasta oo uu ku dooday inuu doonayo inuu la sii joogo Astros, Beltrán wuxuu heshiis muddo dheer ah la saxiixday New York Mets bishii Janaayo 9, 2005.