▁State ' s ▁blue ▁and ▁orange ▁colors . ▁ ▁Id aho ▁State ▁The ▁University ▁of ▁Id aho ▁enjo ys ▁another ▁in - state ▁rival ry ▁with ▁Id aho ▁State ▁University . ▁Kn own ▁as ▁the ▁Battle ▁of ▁the ▁Dom es , ▁the ▁rival ry ▁was ▁at ▁its ▁most ▁compet itive ▁in ▁the ▁ 1 9 7 0 s ▁and ▁ 1 9 8 0 s , ▁with ▁neither ▁team ▁three - pe ating ; ▁the ▁most ▁recent ▁conference ▁game ▁was ▁in ▁ 1 9 9 5 , ▁IS U ' s ▁last ▁win . ▁Id aho ▁has ▁won ▁eleven ▁of ▁the ▁last ▁twelve ▁and ▁leads ▁the ▁overall ▁series ▁at ▁. ▁The ▁last ▁meeting ▁was ▁in ▁ 2 0 0 8 , ▁but ▁the ▁series ▁was ▁rev ived ▁in ▁ 2 0 1 8 ▁when ▁Id aho ▁dropped ▁back ▁to ▁FC S ▁and ▁rejo ined ▁the ▁Big ▁Sky ▁Conference ▁in ▁football ▁( its ▁other ▁sports ▁rejo ined ▁in ▁ 2 0 1 4 ). ▁ ▁The ▁" B attle ▁of ▁the ▁Dom es " ▁theme ▁began ▁in ▁ 2 0 1 7 , ▁and ▁is ▁applied ▁to ▁multiple ▁sports . ▁Id aho ▁State ▁was ▁the ▁first ▁of ▁the ▁pair ▁to ▁play ▁its ▁home ▁games ▁ind o ors , ▁opening ▁the ▁Hol t ▁Arena ▁( origin ally ▁AS IS U ▁Min id ome ) ▁ ▁in ▁ 1 9 7 0 . ▁The ▁K ib bie ▁D ome ▁in ▁Moscow ▁was ▁en closed ▁in ▁ 1 9 7 5 , ▁after ▁four ▁years ▁as ▁an