Go Draw (version 3)

GoDraw is a piece of Tournament Directing Software which is written by Geoff Kaniuk and used regularly in BGA tournaments in the United Kingdom. It runs on Windows only, unless you count running it on windows emulators. It has been available since 1991.

See more at BritishGoJournal 89 http://britgo.org/files/bgj/bgj089.pdf