Grand Slam events Tier I tournaments Tier II tournaments Tokyo Indoor (S , D )Washington (S , D )Indian Wells (S , D )Boca Raton (S , D )Amelia Island (S , D )Hamburg (S , D )Eastbourne (S , D )Manhattan Beach (S , D )Tokyo (S , D )Zurich (S , D )Filderstadt (S , D )Brighton (S , D )Oakland (S , D )Worcester (S , D )Tier III tournaments Tier IV tournaments Brisbane (S , D )Wichita (S , D )Oklahoma City (S , D )Tokyo (S , D )Singapore (S , D )Barcelona (S , D )Geneva (S , D )Strasbourg (S , D )Birmingham (S , D )Albuquerque (S , D )Paris (S , D )Scottsdale (S , D )Dorado (S , D )Nashville (S , D )Indianapolis (S , D )Tier V tournaments Guarujá (S , D )Auckland (S , D )Wellington (S , D )Taranto (S , D )Båstad (S , D )Palermo (S , D )Estoril (S , D )Schenectady (S , D )Kitzbühel (S , D )Athens (S , D )Bayonne (S , D )Moscow (S , D )Team events