▁Davis ▁Cup , ▁Olympics ) ▁toward ▁their ▁ranking . ▁To ▁count ▁their ▁best ▁six ▁( 6 ), ▁players ▁must ▁have ▁ful filled ▁their ▁commit ment ▁to ▁ 5 0 0 ▁events ▁– ▁ 4 ▁total ▁per ▁year ▁( at ▁least ▁ 1 ▁after ▁the ▁US ▁Open ). ▁Additionally , ▁commit ment ▁players ▁will ▁no ▁longer ▁need ▁to ▁enter ▁the ▁ 5 0 0 ▁events ▁ 1 2 ▁weeks ▁in ▁advance ▁but ▁instead ▁go ▁back ▁the ▁normal ▁ 6 - week ▁entry ▁dead line . ▁ ▁If ▁el ig ible ▁to ▁play ▁in ▁one ▁of ▁the ▁Grand ▁S lam ▁or ▁ATP ▁World ▁Tour ▁Masters ▁ 1 0 0 0 ▁tournament s , ▁a ▁player ▁must ▁count ▁the ▁points ▁from ▁these ▁tournament s , ▁even ▁if ▁it ▁is ▁' a ▁zero ▁pointer ' ▁because ▁he ▁missed ▁the ▁event . ▁Just ▁as ▁in ▁Formula ▁One ▁and ▁numerous ▁other ▁sports , ▁if ▁a ▁compet itor ▁miss es ▁a ▁race ▁or ▁an ▁event , ▁he ▁los es ▁his ▁chance ▁to ▁ear n ▁points . ▁Play ers ▁with ▁direct ▁accept ance ▁who ▁do ▁not ▁play ▁an ▁ATP ▁World ▁Tour ▁Masters ▁ 1 0 0 0 ▁tournament ▁will ▁be ▁susp ended ▁from ▁a ▁subsequent ▁ATP ▁World ▁Tour ▁Masters ▁ 1 0 0 0 ▁event , ▁which ▁will ▁be ▁the ▁next ▁highest ▁points ▁earned ▁ATP ▁World ▁Tour ▁Masters ▁ 1 0 0 0 ▁event ▁within ▁the ▁next ▁ 1 2 ▁months . ▁If ▁an ▁injured ▁player ▁is ▁on ▁site ▁within ▁the ▁first ▁three ▁days ▁of ▁a ▁tournament ▁to ▁conduct ▁prom ot