▁of ▁the ▁three ▁officials ▁must ▁agree ▁( us ually , ▁the ▁ref eree ▁and ▁either ▁the ▁judge ▁or ▁the ▁mat ▁chairman ). ▁ ▁Period ▁format ▁In ▁Gre co - R oman ▁and ▁fre est yle , ▁the ▁format ▁is ▁now ▁two ▁three - min ute ▁periods . ▁Before ▁each ▁match , ▁each ▁wrest ler ' s ▁name ▁is ▁called , ▁and ▁the ▁wrest ler ▁takes ▁his ▁place ▁at ▁the ▁corner ▁of ▁the ▁mat ▁assigned ▁to ▁his ▁color . ▁The ▁ref eree ▁then ▁calls ▁them ▁to ▁his ▁side ▁at ▁the ▁center ▁of ▁the ▁mat , ▁sh akes ▁hands ▁with ▁them , ▁inspect s ▁their ▁app arel , ▁and ▁checks ▁for ▁any ▁pers p iration , ▁o ily ▁or ▁gre asy ▁subst ances , ▁and ▁any ▁other ▁inf ra ctions . ▁The ▁two ▁wrest lers ▁then ▁gre et ▁each ▁other , ▁sh ake ▁hands , ▁and ▁the ▁ref eree ▁blow s ▁his ▁wh ist le ▁to ▁start ▁the ▁period . ▁ ▁A ▁wrest ler ▁wins ▁the ▁match ▁when ▁he ▁has ▁won ▁two ▁out ▁of ▁three ▁periods . ▁For ▁example , ▁if ▁one ▁compet itor ▁were ▁to ▁win ▁the ▁first ▁period ▁ 1 - 0 ▁and ▁the ▁second ▁period ▁ 1 - 0 , ▁the ▁match ▁would ▁be ▁over . ▁However , ▁if ▁the ▁other ▁compet itor ▁were ▁to ▁win ▁the ▁second ▁period , ▁then ▁a ▁third ▁and ▁dec iding ▁period ▁would ▁result . ▁Only ▁a ▁fall , ▁injury ▁default , ▁or ▁dis qual ification ▁termin ates ▁the ▁match ; ▁all ▁other ▁modes ▁of ▁victory ▁result