RandomZone Guide
How to Create Fair Random Teams
Random teams are useful when the objective is to remove manual preference from group assignment. The key is to decide whether you care more about the number of teams or the maximum number of people in each team.
Choose the team rule first
If you need exactly four teams, use the number-of-teams mode. If a room, activity or facilitator can handle at most five people per team, use the players-per-team mode instead.
Clean the participant list
Use one participant per line and remove accidental duplicates. A duplicate entry effectively gives that participant more than one place in the input, which may be inappropriate unless it is intentional.
Understand uneven group sizes
Not every participant count divides evenly. A fair random team generator should keep the size difference as small as possible rather than silently dropping people. A group may therefore contain one more participant than another.
Random does not mean skill-balanced
Pure randomization removes manual selection bias, but it does not know each participant's skill, role, age or experience. If you need competitively balanced teams, first define skill tiers or other constraints and use an appropriate constrained assignment method rather than treating pure randomness as skill balancing.