An entertainment device comprises means to obtain a set of GPS co-ordinates describing the location of the device, means to initiate reverse geocoding responsive to the co-ordinates to obtain a hierarchy of geographical names, means to request, from a leaderboard server, leaderboard data corresponding to one of the hierarchy of geographical names, and means to display some or all of the leaderboard. A leaderboard server comprises means to host multiple leaderboards either linked together according to a geographical hierarchy or each associated with a geographical name, means to obtain a hierarchy of geographical names generated by reverse geocoding, means to identify one or more leaderboards either in a hierarchical sequence corresponding to one or more of the geographical names or whose associated geographical name matches one or more of the geographical names in the hierarchy of geographical names, and means to provide to the client data of selected identified leaderboards.