March Madness is about to get even bigger. The NCAA has officially approved expansion to a 76-team men's tournament, and the new format is set to debut this upcoming season. For fans filling out brackets and teams fighting for a spot, understanding how the bracket will change is key.

Under the new system, eight additional teams will join the field. These teams will compete in the newly named "Opening Round," which expands on the traditional First Four play-in games. Instead of just four games, the Opening Round will now feature 24 teams battling for a spot in the Round of 64.

Here's how it breaks down: The Opening Round will include the 12 lowest-seeded automatic qualifiers (conference tournament champions) and the 12 lowest-seeded at-large teams. That means eight 16-seeds and four 15-seeds from the automatic qualifiers will play their way in, while the last 12 at-large teams will also need to win to advance.

In practical terms, every region's 12-seed and 16-seed will now come from Opening Round winners. Additionally, there will be play-in games to determine two of the 11-seeds and two of the 15-seeds. Everything from the Round of 64 onward remains unchanged from what fans know and love.

To help visualize the impact, here's how the bracket would have looked if the 76-team field were in place for the 2026 tournament. The new Opening Round games are highlighted for clarity.

The at-large teams that would have been added to the field include: 11-seed New Mexico, 11-seed Oklahoma, 11-seed Auburn, 11-seed Indiana, 12-seed San Diego State, 12-seed Cincinnati, 12-seed Tulsa, and 12-seed Seton Hall. Meanwhile, automatic qualifiers that previously held 11-15 seeds would have been bumped down a seed line.

With more teams and more games, the road to the Final Four just got a little longer—and a lot more exciting. We'll have to wait until March to see how these changes play out on the court.