← All formatsGroups + PO
Groups + playoff
Group stage guarantees matches, playoff delivers drama.
- formula
- G × k(k−1)/2 + PO
- complexity
- medium
- best for
- 12–32 players
How it works
Players are split into groups of 3–5. Each group plays a mini round robin. Top 1–2 from each group advance to a single-elimination playoff. This is the format used by the FIFA World Cup, UEFA Champions League, and most ESL tournaments.
Pros and cons
Pros
- Guaranteed 3–4 matches in the group stage for everyone
- 8–16 player playoff is clean and watchable
- Balance of fairness and speed
- One loss doesn't eliminate weaker players
Cons
- Needs at least 8 players for meaningful groups
- Takes two days minimum: groups then playoff
- Dead rubber matches after qualification is decided
- More complex bracket design
When to pick it
- 01Club championship, amateur league, esports
- 0212–32 participants
- 03Two game days are available
- 04You want both group stats and a climactic final
How many matches
Match and round count by participant number — plan your courts and schedule.
formulaG × k(k−1)/2 + PO
G groups of k players give G × k(k−1)/2 group matches. Playoff adds matches from single elimination.
| Participants | Matches | Rounds |
|---|---|---|
| 8 | 16 | 5 |
| 12 | 22 | 5 |
| 16 | 28 | 6 |
| 24 | 42 | 7 |
| 32 | 56 | 7 |