Multi-day sports competitions usually consist of a ‘single round robin’, with one team playing on its home field in each round of matches.
Using mytournament.info, you can easily realise such a tournament. . . . . .

Often, a tournament with final rounds has no resit options: a defeat results irrevocably in elimination of the losing team.
In contrast, a double-elimination tournament is one where a competitor is excluded from the final only after losing two games.. . . . . .

A single-elimination tournament (also called a knockout tournament) is a tournament format in which a team or player is immediately eliminated in case of a loss.
When you win, you advance to the next round. If you lose, you are out of the tournament.. . . . . .

MyTournament.info offers two specific tournament schedules that, after the group phase, produce a final ranking per 8 teams with a maximum of 3 additional matches:

• Groups, quarter finals and third place play-off per 8 teams
• Groups, quarter finals and third place play-off per 8 teams (12, 20, 28 teams: group 9-12, 17-20, 25-28)

These two schemas are identical, except when 4 teams remain. . . . . .