All informations about Worldwide Combos tournaments.

Tournaments on Worldwide Combos is the most competitive feature on Worldwide Combos. At regular periods of the year, they let players play several matches against various opponents, first in pools of at least 4 or 5 players, then in a single elimination bracket, until there is only one player left. Such tournaments usually last 4 weeks, with at most two matches played per week in average.

In order to let all kind of players have fun, tournaments are often splitted into several divisions, either before or after the pool round. There are always two or three single elimination brackets in the end, so that even players who are not pros still have a chance to win.

In order to sign up for a tournament, one has to meet the following requirements:

- have a validated account on Worldwide Combos;
- having played at least 10 Ghostbuster or Multiplayer rounds.

Until now all tournaments have been open to everyone. People could choose in which division to register, when there were several divisions. In the future, tournaments will probably be splitted between "open" tournaments (one pool division, everyone can register), and "division-based" tournaments (with several divisions from the pool round). In the latter case, access to all divisions except the last one will be restricted to people who either have the required Tournament points, or got a Wild Card.

In order to register, one has to click on Compete in the Dashboard, then select the tournament in the list, then click on the "Register" button at the top of the tournament page. You will be asked to provide ways of contacting you during the tournament (typically, you will have to either make your e-mail address or your Discord username public). Once you're done with it, click on "Register" at the bottom of the registration page. It is possible to unregister from a contest while it hasn't started. Registration closes when the tournament starts.

For each division, players are seeded according to the following criteria:

- Tournament points, in decreasing order;
- Multiplayer rating, in decreasing order;
- Ghostbuster rating, in decreasing order;
- Survivor personal best, in decreasing order;
- Sprint personal best, in increasing order;
- Sprint10 ranking, in increasing order;
- Tournament registration date, in increasing order.

The number of pools is `1 + floor((n-1)/k)`

, where `n`

is the number of
participants, and `k`

is the maximum number of people in a pool (usually 5). Let
`l`

be the number of pools. The pools are made as follows: players with seed from
`1`

to `l`

are put in pools 1, 2, ..., l, then players with seeds `l+1`

to `2*l`

are put in pools l, l-1, ..., 1, and so on until all players are in a pool.

In every pool, all players face all other players once, in a first to 5 win by 1 match. The matches'
starting dates and times are determined by the server, yet players can play at another time as long
as they both agree and the deadline hasn't passed yet. Note that the match has to end *before*
the deadline.

If one of the two players doesn't show up for a match while the other did, then the player who showed up wins 5-0, all rounds being won 3-0, 0-0. If none of the players show up, then the match results in a tie, yet the server will consider that both players lost their match, when computing the pool rankings.

When the pool round has ended, an overall ranking is made, according to the following criteria:

- the victory rate;
- the difference between the number of rounds won and the number of rounds lost;
- the number of rounds won;
- the difference between the number of KOs for and against a given player;
- the number of KOs a given player got;
- the difference between the number of lines sent and received by a given player;
- the number of lines a given player sent;
- the initial seeding (before the randomization was made).

People in the bottom of the pool rankings might be eliminated: the number of people who advance to the single elimination stage is always determined before the tournament starts.

In a single Elimination bracket, matches are first to 7, win by 2. People who lose are eliminated, and bracket keeps going until one player is left. The bracket is completely determined from the beginning, that is, given two players, it's always possible to determine at which stage they might play against each other, assuming they both win their early matches if there are any.

The bracket's seeding is based on the pool rankings. However, in order to avoid two players from a same pool playing against each other on the first elimination round, some changes might be done to the bracket. Such changes are made in a deterministic way, by the server itself.

As for the pool round, the matches' starting dates and times are determined by the server,
yet players can play at another time as long as they both agree and the deadline hasn't
passed yet. Note that the match has to end *before* the deadline.

If one of the two players doesn't show up for a match while the other did, then the player who showed up wins 7-0, all rounds being won 3-0, 0-0. If none of the players show up, then the player with the best seed wins 7-0, all rounds being won 3-0, 0-0. This player can still show up for the next match and play it, as long as the deadline for this next match has not passed.

If the tournament is splitted into several divisions from the very start (before the pool round begins), then these divisions have separate rankings. If a division is splitted into several brackets after the pool round has ended, then the rankings for these brackets are merged: the players from the first brackets are ranked, then the players from the next bracket, and so on. People who were eliminated without playing single elimination matches are ranked after the players of the last bracket.

For every bracket, the ranking is made as follows:

- the bracket winner is first;
- other players are first ranked according to the stage at which they got eliminated (people who were out at a later stage have a better ranking);
- players who were eliminated at the same stage are ranked according to their bracket seeding.

All participants win tournament points. These tournament points are used for the Tournament ranking, as well as the initial seeding for pools. When a player wins some points at a tournament, these points are counted until one year has passed since that tournament started.

A player who was ranked `C`

th wins `K*(1.01-log(C)/log(N))`

points truncated
to two decimals, where `K`

is the coefficient of the tournament, and `N`

is the
number of participants that are either in the player's division or in a lower division. Usually the
coefficient is divided by 2 when going from a division to the next lower one.

Apart from this, bracket winners win a Div.1 / Div. 2 / Div. 3 winner role on the Discord server. For special occasions the winner might also win a special role related to that event.

If there are extra prizes for a tournament, then the tournament rules will state so before the tournament starts.

Worldwide Combos 0.10.21 - Noël Nadal - logo by Legitimate Ted

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