Jadwal Championship Series, Agenda Persiapan

championship seriesChampionship series merupakan tahap kedua dari sistem kompetisi yang mulai dijalankan pada La 1 musim ini. Fase ini akan bergulir setelah faseThe Grand Prix Super Series [1] of men's tennis tournaments was part of the Grand Prix and World Championship Tennis tours between 1978 and 1989, sometimes also referred to as