Marble Battle Random Picker

Marble Battle turns up to 500 candidate names into head-to-head marble matches until one champion remains.

Use it for large groups, tournaments, classrooms, streams, giveaways, or any decision that deserves a knockout bracket.

Game guide

Candidates: 2–500

Marble Battle builds a tournament from the entered names. Choose a match-size setting from 2 to 8, then start the tournament. Marbles compete in an arena; survivors advance until a champion remains. The bracket shows the route through the rounds.

The setup accepts up to 500 distinct names. Empty entries and repeated names, ignoring letter case, are removed. For a round with eight or fewer remaining candidates, everyone enters one match. Larger rounds are grouped around your selected size; groups are adjusted to avoid a one-person match, so an individual match can differ from the chosen size.

Marble Battle

Before you start

Review the candidate list before starting. Each game has its own capacity; a large saved preset may contain more names than this game accepts.

Results and fairness

These are entertainment simulations. Outcomes are not certified equal-probability draws or audited selections. Agree on the meaning of a result before playing.

Names, images and privacy

The candidate editor stores names and custom images in this browser. Clear the list or browser site data to remove them. A shared or downloaded clip can reveal the names and images shown on screen.

Technical help

Use a current browser with JavaScript and canvas support. If a game is slow, reduce the candidate count. Recording support varies by browser; downloaded clips currently contain video only.