when can you make a march madness bracket

You can make a March Madness bracket as soon as the official NCAA tournament field is revealed on Selection Sunday, and you usually have until just before the first round games tip off to finalize it.

When brackets open

• Brackets typically open on Selection Sunday , right after the 68‑team field and seeding are announced on TV.

• In 2026, Selection Sunday is March 15, which is when the men’s and women’s brackets are revealed and most major sites activate their bracket games.

• Major platforms (ESPN, CBS, Yahoo, NCAA, etc.) generally post blank brackets within minutes of the reveal so you can start filling them out that evening.

When brackets are due

• Brackets usually lock just before the first game of the main tournament (the round of 64), not at Selection Sunday.

• For 2026, the round of 64 starts Thursday, March 19, so most contests will close sometime that morning or right before the first tip.

• Some sites let you include or ignore the First Four games; if they count them, your bracket might lock by Tuesday or Wednesday instead.

Practical example

• In a typical online pool: you can start your bracket on Sunday night, tweak it Monday–Wednesday, then it freezes once Thursday’s opening game begins.

• Private office or friend pools may set their own due time, but they almost always match that “before the first game” rule for fairness.

Quick answer to your key phrase

If you’re wondering “when can you make a March Madness bracket” , the practical answer is:

• Start: Right after Selection Sunday when the bracket is announced.

• Finish: Before the first round tips off (check your specific site or pool for the exact cutoff time each year).

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