Diamond Scheduler

Diamond Scheduler is a sports league scheduling program that takes the work out of round robin league pairings.
It works well for most sports leagues that pair teams or individuals; it offers a choice among a variety of customized pairing methods, allowing the user to control for early/late distribution, no-play times, days rest, run of days in a row, games per week, games per day, games per season, back-to-back pairings, and more. Schedules can be exported to HTML and text files. It includes extensive introductory tutorials both in print and online movies.