Round Robin Scheduler 

Use the Round Robin Scheduler by Galactix Software to quickly create round robin schedules for your sports league. Some of the features include automatic schedule generation; prioritized field usage; multi-division scheduling; and standings support.
league scheduling team scheduling maker builder round robin software scheduler baseball soccer hockey basketball darts bowling

Advanced Team Scheduler 

Advanced Team Scheduler ($32) is a shareware application and is targeted for experienced sport schedulers who are looking for a program that will quickly put together a schedule modeled by the contraints imposed by day to day scheduling problems.
tournaments round robins