While it is technically possible to make a perfect March Madness bracket, the odds are overwhelmingly against it–no one in the history of the NCAA tournament has ever made a verifiably perfect bracket to date.
The big dance has had 68 teams competing in its field since 2011. Eight of those teams compete in the “First Four," or play-in games that take place before the first round of the tournament. Most bracket pools disregard these games and only count games starting with the official first round of March Madness, when 64 teams tip off.
Beginning with the first round through the championship, there are 63 games in a standard NCAA tournament bracket.