Patent ID: 8419528

Claim:
A method including: (a) on one of multiple computer devices in an electronic gaming system, maintaining a first gaming activity network data structure holding first data regarding a first linked series of gaming system events associated with a player anonymous to the gaming system, the first data describing an initial cash in event and multiple sets of one or more gaming system play events separated by voucher issue and voucher in events, the first data being associated with a first network data structure identifier which is unique to the first gaming activity network data structure, the first data including both a total amount wagered for the first gaming activity network data structure and a total credit value added or a total cash in for the first gaming activity network data structure, the first data being sufficient to define an activity network characteristic for the first gaming activity network data structure; (b) on one of the multiple computer devices in the electronic gaming system, maintaining a second gaming activity network data structure for holding second data regarding a second series of linked gaming system events and comprising at least a cash in event, one set of one or more gaming system play events, and a voucher issue event, the second data being associated with a second network data structure identifier which is unique to the second gaming activity network data structure, the gaming activity data for the second gaming activity network data structure including both a total amount wagered for the second gaming activity network data structure and a total credit value added or a total cash in for the second gaming activity network data structure, and being sufficient to define an activity network characteristic for the second gaming activity network data structure; (c) determining that the first and second gaming activity network data structures are related to each other; and (d) in response to determining such relationship, merging the first and second data to detect possible occurrence of a predetermined event.