Structures available on Toornament

Updated 2 months ago ​by Geoffroy "Vomact" Piot

As Toornament offers a vast array of competition structures, here’s a quick and useful guide on what each of them do best. Must read, if you need to pick the format that suits you best! 
Each format is detailed, with the maximum number of participants available for this kind of stage, and the improved limit, for Toornament Partners, and organizers who request it.

Single Elimination

Limit: 256 Partner: 512
  • Pitch: The most used format, where the winner of each match advances forward and meets another winner,until one final victor remains.

  • Duration: Moderate. Each round is 50% shorter than the previous one.

  • Capacity: Can accommodate a wide range of participants.

  • Level: Beginner.

  • Pros: easy to handle and understand, straightforward.

  • Cons: no room for error, weaker participants will only play one single match.

  • Pick Bracket if: you want to rely on a quick, solid format known by everybody. Perfect for a first competition.

Double Elimination

Limit: 256 Partner: 512
  • Pitch: The Double Bracket adds a "Loser Bracket" welcoming all the participants who lost a match. You then have to lose twice to be eliminated.

  • Duration: Average. Be aware that this format more than doubles the time needed for a tournament compared to the Single Elimination.

  • Capacity: Can accommodate a wide range of participants, but the Loser Bracket can get loaded at times.

  • Level: Intermediate.

  • Pros: Greater match variety, possibility for comebacks.

  • Cons: Hard to understand, leads to confusing situation due to variants (like the Double Grand Finals), timing issues between the two brackets.

  • Pick Double Bracket if: you want to provide a flexible experience for all your participants, where a single lose doesn't mean elimination.


Limit: 256 Partner: 1024
  • Pitch: Dispatches the participants into smaller pools where they will face the other members of their group.

  • Capacity: Limited. Groups are designed to keep a relatively low number of participants, but you can spawn numerous groups.

  • Duration : Depends on the group size, but generally quite short.

  • Level: Beginner.

  • Pros: Easy to understand and to set up, good to separate seeds, flexibility as each group is independent from the others.

  • Cons: Doesn’t work well as a standalone structure, better when followed by an Elimination-type structure.

  • Pick Groups if: you have numerous participants from different skill levels and you want to have several matches played simultaneously.

Bracket Groups

Limit: 256 Partner: 4096
  • Pitch: Each group is a bracket. Widely used by the GSL (4 participants in a Double Bracket), giving the name "GSL Groups".

  • Capacity: Usually small, but tournaments like the Vainglory League and March Madness use 64 participants Bracket Groups.

  • Duration: A bit shorter than regular groups, as there is no need for participants to face all their opponents to determine who's qualified.

  • Level: Advanced.

  • Pros: All matches are important, no participant has won or lost until he has played all his matches.

  • Cons: Weaker participants play very few matches, harder to understand than the regular Groups.

  • Pick Bracket Group if: the average participants’ skill level is consistent. Great for high level tournaments.


Limit: 128 Partner: 128
  • Pitch: Same as the Round-Robin. Usually a Standalone stage, the participant with the most points at the end wins.

  • Capacity: Accommodates with any number of participants, but better for small to medium size.

  • Duration: Long, as each participant plays all his opponents. Some leagues even use Double-Robin format.

  • Level: Beginner. The League format is straightforward. Its main difficulty lies in the workload involved and its points system.

  • Pro: flexible schedule, lots of matches for everybody, rewards the most consistent performing participant.

  • Cons: Stretches over a long duration and can become boring for the weaker participants who already know they can’t win.

  • Pick League if: you want to create a continuous stream of matches for all your participants. Works well for online competitions.

Swiss System

Limit: 256 Partner: 1024
  • Pitch: The System pairs participants with equal or close level, based on their previous results, getting more and more accurate as rounds go by.

  • Duration: Variable, but not exponentially long like a League, as you can choose the number of rounds.

  • Capacity: Works well with any number of participants.

  • Level: Advanced. The pairing and tiebreaking algorithm are somewhat complicated, but Toornament handles everything on its own!

  • Pros: Most match-ups are well balanced for everyone.

  • Cons: Abandons are possible, but not that impactful, as dropped-out participants are simply not paired anymore.

  • Pick Swiss System if: you want to entertain participants with various skill level. Only the first rounds can be random.


Limit: 256 Partner: 4096
  • Pitch: All the structures explained above can be combined freely: Groups to Bracket, League to Playoffs, Groups to Groups to Bracket etc.

  • Duration: A little bit tricky but keep this in mind: a complex structure takes more time than the addition of its two sub-structures.

  • Capacity: Depends on the combination.

  • Level: Intermediate, Advanced.

  • Pros: More variety in match ups and match values, can suit any situation, with qualifying or seeding rounds into Elimination.

  • Cons: There are no real con except the added workload.

  • Pick a combination of formats if: you want to offer an exhaustive experience to your participants and your audience.

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