Swiss system online

Swiss System Online is a web-based tournament management application designed to facilitate online chess and other game tournaments. Accessible via https://swisssystem.org/, it stores all tournament data online and features a FIDE-compatible pairing engine for accurate and official tournament pairings.

Users can organize tournaments using either the Round Robin system with Sonneborn–Berger scoring or the Swiss System with Buchholz scoring (Dutch version). Key features include bulk player creation, sorting by Buchholz or Berger score, tournament sharing with players, and flexible point assignment to support various games such as soccer, tennis, and darts. Although optimized for chess, it also supports games like Go and Draughts that involve black and white sides.