Free tournament bracket generator. Not affiliated with the NCAA, Challonge, or any tournament management service. Brackets are stored in your browser and in the shareable URL. No account, no tracking beyond standard analytics.

128-Team Tournament Bracket Generator

128 teams is the largest bracket this tool supports. 7 rounds, 127 matches, no byes since 128 is a power of two. This is a major multi-day event: large esports opens, national qualifiers, and big charity or office mega-pools. Matches usually run on several courts or servers at once. Enter team names below and click Generate to build your bracket.

128-Team Bracket Facts

128

Teams

7

Rounds

127

Total Matches

0

Byes

Suggested Formats

Single elimination across multiple days, or Swiss (7 rounds) when you need a full ranking of all 128 entrants without running 127 elimination matches. Pool play into a knockout stage is common for live events with limited venue time.

Estimated Time

Multiple days for live events; a few hours online with simultaneous matches

128-Team Seeding and Bracket Layout

Standard 128-team single elimination pairs Seed 1 vs Seed 128, Seed 2 vs Seed 127, and so on, with the bracket arranged so the top seeds meet only in the later rounds. Many large events split the field into 8 regions of 16 and seed each region 1 through 16.

How to Run Your 128-Team Tournament

  1. 1.Enter all 128 team names in the field above (one per line or comma-separated).
  2. 2.Click Generate Bracket. Your bracket appears instantly with all matches structured.
  3. 3.Click Share URL and send the link to participants before the tournament starts.
  4. 4.As matches complete, click each match cell to enter the score. Winners advance automatically.
  5. 5.Print the bracket (click Print) for a clean paper copy to post at the venue.
  6. 6.After the final match, share the completed bracket URL as a permanent record.

Related Bracket Sizes

Updated 11 May 2026