▁FIFA ▁World ▁Cup . ▁After ▁the ▁World ▁Cup ▁the ▁club ▁gradually ▁increased ▁home ▁games ▁in ▁S ait ama ▁Stadium ▁and ▁in ▁ 2 0 0 3 ▁the ▁stad ium ▁was ▁formally ▁designated ▁as ▁the ▁home ▁stad ium . ▁In ▁ 2 0 0 8 , ▁only ▁two ▁games ▁were ▁held ▁at ▁Kom aba ▁Stadium . ▁ ▁Fac ilities ▁U raw a ▁Red s ▁uses ▁Oh ara ▁City ▁Field ▁for ▁training . ▁In ▁addition ▁to ▁this ▁facility , ▁the ▁club ▁opened ▁Red s land ▁in ▁ 2 0 0 5 , ▁which ▁has ▁three ▁grass ▁fields , ▁one ▁artificial ▁tur f ▁field , ▁one ▁baseball ▁field , ▁fut sal ▁courts ▁and ▁tennis ▁courts . ▁Red s land ▁is ▁opened ▁to ▁the ▁public ▁and ▁club ▁members ▁can ▁use ▁the ▁facilities ▁at ▁relatively ▁cheap ▁fe es . ▁ ▁R ival ries ▁U raw a ▁Red ▁Diam onds ▁has ▁a ▁local ▁der by ▁with ▁O mi ya ▁Ar d ija , ▁from ▁ Ō mi ya - ku , ▁S ait ama ▁city . ▁They ▁first ▁met ▁in ▁the ▁ 1 9 8 7 ▁Emperor ' s ▁Cup , ▁with ▁M its ub ishi ▁defe ating ▁N TT ▁K anto ▁by ▁ 5 ▁to ▁ 0 ▁at ▁N ish iga oka ▁National ▁Stadium . ▁The ▁der by ▁first ▁took ▁place ▁in ▁the ▁JS L ▁Second ▁Division ▁in ▁the ▁ 1 9 8 9 – 9 0 ▁season , ▁and ▁it ▁wouldn ' t ▁take ▁place ▁until ▁the ▁ 2 0 0 0 ▁season ▁when ▁U raw a