Filling a Bracket

The bracket picker is interactive. You click a team to pick them, and that pick propagates downstream automatically - if your pick wins their region, they appear in the Sweet 16 slot you have to fill next. If you change a Round-1 pick, every downstream pick that depended on the old pick clears.

The flow

A round at a time

On a phone the picker shows one round at a time, and the whole bracket is one tap away when you want the shape of it. Each game is two full-width rows with a gap between them, so a thumb that misses one does not land on the other, and the row you picked is marked by more than colour. Every pick that changes the bracket raises a message with Undo, which puts the bracket back as it was, later picks it cleared included.

The cascade

When you click a team to advance them, three things happen:

1. Your pick is recorded for that game
2. The game this feeds into has your pick fill that slot
3. Downstream picks are cleared if they depended on the team you just replaced

Example: you originally picked Team A to win the Round-1 game and then picked Team A again in the Round-2 game. If you change your Round-1 pick to Team B, your Round-2 pick gets cleared - Team A is not there anymore. The cascade prevents stale picks.

Live preview

As you pick, the bracket SVG updates on the right side. This is the actual rendering that will go on-chain when you submit. It is drawn by the same renderer that draws the final edition.

The preview is debounced - it does not regenerate on every click, only when you pause typing or picking, so the UI stays responsive even on large brackets.

Saving your work

Your picks are kept in your browser as you go. If you close the tab and come back, they are still there. The picks are not committed on-chain until you submit.

Submitting

When you are ready, click submit. The flow:

1. Your picks are packed into the on-chain submission
2. Your wallet signs it
3. It confirms in seconds
4. Your numbered edition appears in your collection

Your bracket is now part of the public record. Other entrants can see it on the brackets gallery for the tournament.

What submission costs

The tournament defines an entry fee at creation time. The fee splits according to the tournament's pre-configured revenue model - typically a share to the organizer, a share to a prize pool, and a share to the style artist who designed the bracket template.

Editing after submit

You cannot edit a submitted bracket - that is the point. The on-chain record is what gets scored. If you change your mind, you can submit a new bracket (it gets a new edition number) and the leaderboard scores both.