Chess Database and Toolkit program
Excel based scoring system for Science Olympiad tournaments
A free Chess program for Windows with a large set of features
Program for tournament management.
Software to help people run and organize tournaments.
Chess pairing program for run through and round robin tournaments
Play old LAN games across the world!
Bridge duplicate tournament card play program
A badminton tournament planner spreadsheet
Kicker tournament manager
A very simple program for tournament scheduling (football...).