▁tour ▁to ▁have ▁had ▁a ▁best - of - five ▁match ▁at ▁any ▁round ▁of ▁the ▁competition . ▁It ▁was ▁the ▁first ▁time ▁since ▁the ▁ 1 9 0 1 ▁U . S . ▁National ▁Championships ▁that ▁the ▁best - of - five ▁format ▁was ▁used ▁in ▁women ' s ▁matches . ▁In ▁ 1 9 9 9 , ▁the ▁final ▁revert ed ▁to ▁being ▁a ▁best - of - three - sets ▁match . ▁From ▁the ▁ 2 0 1 4 ▁edition ▁the ▁doubles ▁draw ▁was ▁increased ▁from ▁four ▁to ▁eight ▁teams . ▁ ▁The ▁singles ▁winner ▁of ▁the ▁tournament ▁since ▁ 2 0 1 4 ▁receives ▁the ▁Bill ie ▁Jean ▁King ▁Tro phy . ▁ ▁Official ▁names ▁The ▁event ▁has ▁a ▁more ▁than ▁ 4 0 - year ▁history ▁of ▁corpor ate ▁spons or ship ▁with ▁the ▁final s ▁named ▁after ▁the ▁spons oring ▁company . ▁ ▁Loc ations ▁▁ ▁W TA ▁Final s ▁are ▁moving ▁to ▁Sh enz hen ▁beginning ▁ 2 0 1 9 ▁on wards , ▁making ▁ 2 0 1 8 ▁the ▁last ▁W TA ▁Final s ▁event ▁to ▁be ▁held ▁in ▁Singapore . ▁ ▁List ▁of ▁final s ▁ ▁Singles ▁ ▁Dou bles ▁ ▁Final ▁appearances ▁by ▁country ▁ ▁Singles ▁▁ 1 ▁— ▁March ▁ 2 ▁— ▁November ▁ ▁Final ▁appearances ▁by ▁player ▁ ▁Singles ▁▁ 1 ▁— ▁March ▁ 2 ▁— ▁November ▁ ▁Dou bles ▁▁ 1 ▁— ▁March ▁ 2 ▁— ▁November ▁ ▁See ▁also ▁ ▁Toy ota ▁Championships ▁ ▁W TA ▁Tour ▁Championships