The NBA's format calls for the winner of the first-round series between the first and eighth seeds within each of the two conferences the league has to face the winner of the first-round series between the fourth and fifth seeds in the next round, even if one or more of the top three seeds had been upset in their first-round series; critics have claimed that this gives a team fighting for the fifth and sixth seeding positions near the end of the regular season an incentive to tank deliberately lose games, so as to finish sixth and thus avoid a possible matchup with the top seed until one round later.
MLB does not have enough teams 10 in its playoff tournament where re-seeding would make a large difference in the matchups; MLS and NFL are at the minimum, which is six from each conference [or league in MLB] for a total of The single-elimination format enables a relatively large number of competitors to participate. Often it's called the round of sixteenlast sixteenor in South Asia pre quarter-finals. A good example of this occurring was when World No. Variations such as the double-elimination tournament allow competitors a single loss while remaining eligible for overall victory. The NCAA originally called the First Four the first round, making the rounds of 64 and 32 the second and third rounds respectively; in it announced that from it would revert to calling the rounds of 64 and 32 the first and second rounds.