4 2 , 0 0 0 ▁= ▁ 3 ▁matches ▁ 3 ▁ 3 ▁Pro - r ated ▁on ▁a ▁per - match ▁basis : ▁$ 2 7 , 0 0 0 ▁= ▁ 1 ▁match , ▁$ 5 0 , 0 0 0 ▁= ▁ 2 ▁matches , ▁$ 7 1 , 0 0 0 ▁= ▁ 3 ▁matches ▁ ▁Qual ification ▁The ▁top ▁eight ▁players ▁( or ▁teams ) ▁with ▁the ▁most ▁count able ▁points ▁accum ulated ▁in ▁Grand ▁S lam , ▁ATP ▁World ▁Tour , ▁and ▁Davis ▁Cup ▁tournament s ▁during ▁the ▁year ▁qual ify ▁for ▁the ▁ 2 0 1 3 ▁ATP ▁World ▁Tour ▁Final s . ▁Count able ▁points ▁include ▁points ▁earned ▁in ▁ 2 0 1 3 , ▁plus ▁points ▁earned ▁at ▁the ▁ 2 0 1 2 ▁Davis ▁Cup ▁final ▁and ▁the ▁late - season ▁ 2 0 1 2 ▁Ch alleng ers ▁played ▁after ▁the ▁ 2 0 1 2 ▁ATP ▁World ▁Tour ▁Final s . ▁To ▁qual ify , ▁a ▁player ▁who ▁finished ▁in ▁the ▁ 2 0 1 2 ▁year - end ▁top ▁ 3 0 ▁must ▁comp ete ▁in ▁four ▁Grand ▁S lam ▁tournament s ▁and ▁eight ▁ATP ▁World ▁Tour ▁Masters ▁ 1 0 0 0 ▁tournament s ▁during ▁ 2 0 1 3 . ▁They ▁can ▁count ▁their ▁best ▁six ▁( 6 ) ▁results ▁from ▁ATP ▁World ▁Tour ▁ 5 0 0 , ▁ATP ▁World ▁Tour ▁ 2 5 0 ▁and ▁other ▁events ▁( Ch alleng ers , ▁Fut ures ,