I V. WORLD CHAMPIONSHIPS I V. WORLD CHAMPIONSHIPS 6) Any team who withdraws from any round robin match after the first round shall not  be eligible for the single elimination competition. v)  If (i), (ii), (iii) or (iv) produce one (1) superior team (first place), or one (1)  inferior team (third place), and the two (2) remaining teams are tied, the  tie between those two (2) teams shall be broken by head-to-head record Comment 1: 1 team has 3 wins and the other 3 teams have 1 win. Of the  3 teams with 1 win, 1 team has only played in 2 matches while the other 2  teams have played 3 matches. The team who has only played 2 matches  is eliminated and then the 2 remaining teams revert back to head-to-head  results with the winner of their match advancing to the semi-finals. Comment 2: 1 team has 3 wins and the other 3 teams have 1 win and  they all have played 3 matches. The tie-break for % of sets won has  1 team with a better % than the other two. This team advances to the  semi-final round. Comment 3 : 3 teams have 2 wins and the other team has 0 wins. The  team with 0 wins is eliminated. Of the 3 teams with 2 wins, they are or - dered by their % of sets won. This produces a 1, 2 & 3 order and the  teams finishing 1 and 2 move to the semi-final round and the team finish - ing 3 in % of sets won is eliminated. The team with the best % of sets won  is the winner of the group. Comment 4: 3 teams have 2 wins and the other team has 0 wins. The  team with 0 wins is eliminated. Of the 3 teams with 2 wins, 1 team’s sets  won-loss is 5-2 for 71.43%; the other 2 teams both have a 4-3 record in  sets for 57.14%. In this case there is 1 superior team (71.43%) and the  remaining 2 teams are tied; it now reverts to the head to head result of the  2 remaining teams with the winning team advancing as group runner-up. Comment 5: 3 teams have 2 wins and the other team has 0 wins. The  team with 0 wins is eliminated. Of the 3 teams with 2 wins, 2 have set  won-loss records of 5-3 (62.5%) while the other team is 4-3 (57.14%). In  this case we have 1 inferior team (57.14%) and this team is eliminated.  The remaining two teams both advance to the semi-finals with the winner  of their head-to-head match advancing as the group winner. Comment 6: 3 teams have 2 wins and the other team has 0 wins. The  team with 0 wins is eliminated. Of the 3 teams with 2 wins, all have played  3 matches and all 3 have set won-loss records of 5-4 (55.56%). In this  case we move to % of games won. The % of games won breaks down  like this: 44-40 for 52.38%, 45-43 for 51.14% and 44-43 for 50.57%. This  produces a 1, 2 and 3 order of the group and the number 1 team in  % of games won is the group winner while the team finishing 2nd in %  of games won advances to the semi-finals as the group runner-up. The  team with the 3rd best % of games won is eliminated. 4)  In applying the tie-breaking procedures, a conduct default or retirement shall  count as a straight-set win or loss. However, games won or lost in matches with  the defaulting or retiring team shall not be counted in the application of subsection  3.d. (iii) above. A team who retires during the round robin because of illness or  injury may continue in the competition if it is approved by the tournament Doctor. 5)  Any team who is defaulted pursuant to ATP Code during the round robin com - petition shall be defaulted from all other matches in the Championship and ATP  default provisions shall apply, except for the following circumstances: Comment : this prevents a scenario where a team knows he only needs to win 1  set to qualify for the semi-finals from retiring once he has won a set. a) The loss of physical condition; or b) Dress and Equipment. 56 D.Single Elimination Competition 1)  The winner of each group shall be placed in separate semi-final brackets. The  runner-up of each group shall be placed in the semi-final bracket with the winner  of the opposite group. 3)  There shall be no playoff for the third and fourth-place positions. 2)  The event shall be completed with a single elimination competition for the semi-fi - nals and final. E. Prize Money and Points Final standings at the end of the tournament shall determine the prize-money and FedEx ATP Doubles Rankings points earned. 4.03 ATP Cup The  ATP Cup is the official team competition of the ATP Tour. A.Round Robin Competition 1) The official ATP Cup is a competition for twelve (12) teams, each team composed  of a minimum of three (3) players and a maximum of five (5)* players from the  same country. The team criteria shall be: a) The two (2) highest ranked singles players; then b) The highest FedEx ATP Ranking (Singles or Doubles) of the next three (3)  players; and c) If a team has selected five (5)* players, then a minimum of three (3) players  must have a current FedEx ATP Ranking (Singles). d) All players must have a FedEx ATP Ranking (singles or doubles). * 5th player team option to be confirmed prior to 2nd January 2021. 2) A player’s nationality as of the entry date shall be used to determine team entry.  All player nationality determinations are subject to ATP approval. 3)  The competition shall be a Round Robin format with four (4) groups of three (3)  teams each. All singles matches shall be the best of three (3) tie-break sets. All  doubles matches shall be two (2) tie-break sets with a deciding Match Tie-Break  (10 point) at one (1) set all. 4)  Each team shall play each other in its group to determine the top team in each  group. The top team in each group shall advance to the Semi-Finals of the knock- out stage. B.Player Nationality / Change of Nationality 1) Nationality . A player’s nationality on the date of that country’s acceptance to the  ATP Cup shall determine the player’s eligibility to compete for that country. 2) Change of Nationality. a)  Player must submit a copy of his passport issued by the country he is re - questing a change. b) Passport must have been valid for a minimum of one (1) year. 57