When people ask “when are brackets due” right now in March 2026, they almost always mean March Madness NCAA Tournament brackets, which lock right before the first Round of 64 games tip off.

Quick Scoop: When Are Brackets Due?

For the 2026 NCAA basketball tournaments, the key bracket deadlines are:

  • Men’s March Madness bracket due:
    By Thursday, March 19, 2026, at 12:00 p.m. ET , when the first Round of 64 game is scheduled to start.
  • Women’s March Madness bracket due:
    By Friday, March 20, 2026, at 11:00 a.m. ET , at tipoff of the first women’s Round of 64 game.

Once that first game of each main tournament tips off, brackets close on the major platforms and you can’t submit a new one or make changes.

Think of it like a door that stays wide open through Selection Sunday…and then slams shut the moment the first full-round game actually begins.

Why Those Dates?

  • Selection Sunday: The full 68‑team men’s field is revealed on Sunday, March 15, 2026 , in the evening.
  • First Four: The play‑in games happen March 17–18, 2026 , but most bracket contests don’t require you to pick those separately; your bracket is usually built around the Round of 64.
  • Round of 64 start times:
    • Men: games begin March 19, 2026 , around midday (12 p.m. ET).
* Women: games begin **March 20, 2026** , late morning (11 a.m. ET).

Most popular bracket games follow this same pattern: deadline = tipoff of the first full-round game for that tournament.

Mini Timeline (2026 March Madness)

  • March 15 (Sun): Brackets released on Selection Sunday in the evening.
  • March 17–18 (Tue–Wed): First Four games in Dayton (play‑ins).
  • March 19 (Thu) noon ET: Men’s Round of 64 starts → men’s bracket submissions close.
  • March 20 (Fri) 11 a.m. ET: Women’s Round of 64 starts → women’s bracket submissions close.

Quick HTML Table (Brackets Due)

html

<table>
  <thead>
    <tr>
      <th>Tournament</th>
      <th>Year</th>
      <th>Bracket Deadline</th>
      <th>Trigger Event</th>
      <th>Time Zone</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>Men's March Madness</td>
      <td>2026</td>
      <td>March 19, 12:00 p.m.</td>
      <td>First Round of 64 tipoff</td>
      <td>ET</td>
    </tr>
    <tr>
      <td>Women's March Madness</td>
      <td>2026</td>
      <td>March 20, 11:00 a.m.</td>
      <td>First Round of 64 tipoff</td>
      <td>ET</td>
    </tr>
  </tbody>
</table>

(Exact times can vary slightly by platform, but they all effectively close when the first main‑round game starts.)

One Last Tip

Because sites get busy and slow near the deadline, it’s smart to finish your brackets the night of Selection Sunday or at least a full day before tipoff , so you’re not locked out by technical glitches right at the buzzer.

Information gathered from public forums or data available on the internet and portrayed here.