Best for groups of 30+
Below 30 people, ten teams becomes tiny pairs and triples — consider 5 or 6 teams instead. Above 30, ten gives a comfortable size of 3–10 per team without any single team dominating.
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Split your list into 10 teams
Pasting a roster of 30–100 people and splitting it into ten balanced squads is a job for a generator, not a clipboard.
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When to use this
Common at company off-sites, large classroom projects, multi-court tournaments and youth tournaments where ten coaches each need a small group. Ten is also the natural size for a league night with two-person tables.
Step by step
- 1
Paste your roster
One name per line works best.
- 2
Generate
Ten teams appear instantly.
- 3
Export
Copy as text, CSV or send to bracket.
Pair with a 16-team bracket
Add two byes and you can drop the ten teams straight into a 16-team single-elimination bracket. The generator handles the byes for you.
What 'fair' actually means here
When we say a split is fair we mean two specific things. First, team sizes differ by at most one — never by two — regardless of how the headcount divides. Second, in skill-balanced mode the total rating per team stays within roughly one rating point of the average. Those are mathematical guarantees of the algorithm, not marketing language. If you want to verify, generate the same input twice with different seeds: the per-team totals will land in the same narrow band each time. Pure-random mode trades that balance for surprise — useful when the ratings are noisy or the activity is recreational. Read the full algorithm description on the methodology page if you want the snake-draft maths.
Practical tips before you paste
Three small habits make the output noticeably better. (1) Strip leading numbers and bullets from your list — paste plain names, one per line, so the parser doesn't treat '1. Alex' as a name. (2) If you have ratings, append them after the name with a space, e.g. 'Alex 4'. The generator accepts integers and decimals from 1 to 10. (3) Decide up-front whether absentees should be excluded or kept as ghosts. Excluding gives tighter teams; keeping them lets you swap names back in later without regenerating. The 'Copy as text' button preserves your line order so you can edit and re-paste.
FAQ
Frequently asked questions
Can I add ratings?
Yes — append a number after each name (e.g. "Alex 4") and switch on balanced mode.
Is anything sent to your servers?
No. The team generator runs entirely in your browser using JavaScript. The names you paste are kept in component memory only and are never transmitted, logged, or persisted unless you explicitly export them. Closing the tab clears the data. See the privacy and methodology pages for the technical detail.
Can I lock specific people onto the same team?
Yes. After generating, click any name to swap it with another, or use drag and drop in the team panel. For one-off groupings (siblings, carpool partners) this is the fastest path. For repeated locks across many regenerations, give the locked group a shared rating that's slightly above average and use balanced mode — they'll cluster together most of the time.
Why do I sometimes get the same split twice?
On very small inputs (under ~10 names) there are only a handful of mathematically distinct splits, so repeats are inevitable. The shuffle is cryptographically random — it's just that the space of valid outputs is small. Either add more names or accept the duplicate; either is fine.
Keep exploring
Related tools & guides
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Eight teams is the cleanest single-elimination size — three rounds, no byes, perfect symmetry.
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OpenSkill-balanced team generator
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Ready to run your event?
Free forever for basic use. No signup required. The free version really does do the job.
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