▁vast ▁t ours : ▁the ▁European , ▁Amer icas ▁and ▁Asian ▁bow ling ▁t ours . ▁The ▁Masters ' ▁is ▁worked ▁out ▁at ▁the ▁end ▁of ▁the ▁three ▁t ours , ▁the ▁European , ▁Amer icas ▁( not ▁' American ', ▁although ▁it ▁does ▁cover ▁the ▁US ) ▁and ▁Asian ▁t ours . ▁ ▁The ▁last ▁World ▁Rank ing ▁Masters ▁was ▁conducted ▁by ▁W T BA ▁in ▁ 2 0 0 9 . ▁ ▁Organisation ▁ ▁It ▁was ▁divided ▁into ▁the ▁following ▁ge ographical ▁Z ones / T ours : ▁ ▁American ▁Bow ling ▁Federation ▁▁ ▁which ▁consists ▁of ▁North ▁and ▁South ▁America ▁and ▁has ▁the ▁Amer icas ▁Bow ling ▁Tour . ▁Asian ▁Bow ling ▁Federation ▁▁ ▁which ▁consists ▁of ▁Asia , ▁Australia , ▁Western ▁Pacific ▁and ▁has ▁the ▁Asian ▁Bow ling ▁Tour . ▁European ▁Ten pin ▁Bow ling ▁Federation ▁( ET BF ) ▁ ▁which ▁consists ▁of ▁Europe ▁and ▁South ▁Africa ▁and ▁is ▁host ▁to ▁the ▁European ▁Bow ling ▁Tour ▁( EB T ) ▁( similar ▁to ▁that ▁of ▁the ▁P BA ' s ▁Tour ) ▁ ▁When ▁all ▁three ▁vast ▁t ours ▁are ▁complete ▁the ▁top ▁ 8 ▁bow lers ▁over ▁the ▁three ▁t ours ▁are ▁invited ▁each ▁year ▁to ▁the ▁World ▁Rank ing ▁Masters . ▁ ▁For ▁example , ▁with ▁the ▁E B T , ▁the ▁list ▁can ▁be ▁found ▁on ▁the ▁official ▁E TB F ▁website ▁. ▁It ▁is ▁also ▁reported ▁on ▁in ▁the ▁leading ▁Ten pin ▁news ▁site ▁. ▁ ▁The ▁World ▁Rank ing ▁Masters ▁is ▁played ▁on