0 1 1 ▁in ▁Rio ▁de ▁Janeiro , ▁Brazil . ▁ ▁U mp ires ▁Below ▁are ▁the ▁ 1 1 ▁u mp ires ▁appointed ▁by ▁the ▁Pan ▁American ▁Hockey ▁Federation : ▁ ▁Daniel ▁Bas to ▁River o ▁( ME X ) ▁Sebast i án ▁B ust am ante ▁( CH I ) ▁G av in ▁Cal dec ott ▁( C AN ) ▁N ku ▁Davis ▁( T RI ) ▁Feder ico ▁García ▁( UR U ) ▁D uv aug hn ▁Hen lon ▁( J AM ) ▁Grant ▁H und ley ▁( USA ) ▁Il ang go ▁Kan ab ath u ▁( MA S ) ▁And rés ▁L edes ma ▁( AR G ) ▁R ag hu ▁Pr as ad ▁( IND ) ▁Don ovan ▁Sim m ons ▁( BER ) ▁ ▁Results ▁All ▁times ▁are ▁Eastern ▁Day light ▁Time ▁( UTC − 0 4 : 0 0 ) ▁ ▁P ools ▁were ▁based ▁on ▁FI H ▁Men ' s ▁Out door ▁Rank ings ▁as ▁of ▁ 1 3 ▁August ▁ 2 0 1 2 . ▁ ▁First ▁round ▁Uruguay ▁and ▁Tr in idad ▁and ▁Tob ago ▁faced ▁travel ing ▁hur d les ▁that ▁required ▁to ▁alter ▁the ▁competition ▁schedule . ▁Both ▁teams ' ▁opening ▁matches ▁were ▁moved ▁to ▁Monday ▁ 1 2 ▁August , ▁while ▁the ▁remainder ▁of ▁the ▁schedule ▁was ▁moved ▁down ▁a ▁day . ▁ ▁Pool ▁A ▁ ▁Pool ▁B ▁ ▁Fif th ▁to ▁e ighth ▁place ▁classification ▁▁ 5 – 8 th ▁place ▁semi - final s ▁ ▁Se vent