Whether you are a newcomer to tournament chess who has been drafted to direct an elementary school championship, or an experienced organizer looking for software to make everything run smoothly at a high-stakes event, SwissSys is up to the job.
It makes pairings for Swiss system (and round robin) tournaments, following all USCF or FIDE rules for alternation of color, transposition of players--the whole business. It lets you print out pairings, standings, wall charts, upset results, new ratings, certificates, and lots more. In fact, there isn't much it can't do for you except make the coffee. (And we're working on that.)
Version 10 now provides a free, easy-to-use hosted service for posting your tournament charts online.
SwissSys can import player registration information from member databases published by the USCF, the CFC, FIDE, or your own custom player lists.
SwissSys is extremely flexible and customizeable, making it the ideal assistant for all levels of competition. On top of that, the customer service is unbeatable.