as the preliminary round of the NBA Playoffs as a 'play-in tournament' to determine the seventh and eighth seeds for the main playoff tournament, with seeds 7 and 8 playing, then seeds 9 and 10, with the winner of the 7/8 game being the seventh seed, and the loser of the 7/8 game and winner of the 9/10 game competing for the eighth seed. The systems Page–McIntyre system The Page–McIntyre system features four teams. In the first round of the Page–McIntyre system, the highest two ranked teams play each other, with the winner going straight through to the grand final and the loser going through to the preliminary final. The lowest two ranked teams play each other, and the winner advances to the preliminary final. The winner of preliminary final gets through to the grand final. In this system, the top two teams are able to lose a match and still qualify for the grand final, this is referred to as a 'double chance'. Assuming that each team has an even chance of winning each match, the probability for both the highest ranked teams winning the competition is 37.5%, compared to 12.5% for the third and fourth placed teams. McIntyre final five system As its name states, the McIntyre final five system features five teams. From the second round the McIntyre final five system is the same as the Page–McIntyre system; however, in the first round the lowest two ranked teams play to eliminate one team and the second and third ranked teams determine which match they will play in the second round. The highest ranked team has a bye in the first round. In this case, if all teams have an even chance of winning each match, the highest ranked team has a 37.5% chance, ranks two and three have a 25% chance and the lowest two ranked teams have a 6.25% chance of winning the competition. First McIntyre final six system The first McIntyre final six system was also the same as the Page–McIntyre system from the second round. In this case, two of the four lowest ranked teams are eliminated in the first round, while the top two determine which match they will play in the second round. Under this system the top two teams receive a double chance, as does the winner of match B. Second McIntyre final six system This adaptation of the first McIntyre