sending results of the system game played at one or more of {HEAD ~ the plurality} of {TAIL ~ gaming machines} to the rewards server with the system game history ID 
of
sending results of the system game played at one or more of { HEAD ~ the plurality } of { TAIL ~ gaming machines } to the rewards server with the system game history ID
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH