All events satisfying all four of these retrospective selection criteria — restricted to amateurs, international participation, open to all competitors and without handicapping — are now regarded as Olympic events, except for those in one sport — ballooning. Croquet, motorboating and boules satisfied three criteria (all had only French players). Only croquet has been accorded Olympic status. (One of the ten croquet players, Marcel Haëntjens, had been thought to have been Belgian. Thus the croquet events were considered as international. Despite the Flemish name, Haëntjens was French.) Like all the Olympic events widely regarded as official, there were other events conducted during the 1900 World's Fair.