Here, on FIDE Online Arena we organise Arena and Swiss Tournaments.
If you’d like to participate in Tournament with a specific system, you can choose it in the Tournaments bar.
And here is more on systems:
Arena Tournament
A win has a base score of 2 points, a draw 1 point, and a loss will still not be awarded any points. If you win two games consecutively you will start a double point streak, represented by a flame icon. The following games will continue to be worth double points until you fail to win a game. That is, a win will be worth 4 points, a draw 2 points, and a loss will still not award any points.
For example, two wins followed by a draw will be worth 6 points.
The player(s) with the most points at the conclusion of the tournament's set time limit will be announced winner(s).
When two players have the same number of points, the tournament performance is the tie break.
Swiss Tournament
At the beginning of the tournament, players are paired based on their ratings.
A win has a base score of 1 point, a draw 0,5 point, and a loss is worth no points.
The player(s) with the most points at the conclusion of the tournament's set time limit will be announced winner(s).
When two players have the same number of points, the tournament performance is shown in the final standings.