Our good friend Campbell Dunstan at Tweed Heads PCYC has created this Judo Scoreboard. It is the best one available worldwide, and it is free! Have a play with it, it will help you understand more about  a Judo bouts progression, and will enable you to help out and do the scoring at competitions.

Go to this link: 

 http://www.scorejudo.com/st.php?uv=368I0I1I0I

and download this version:

ScoreJudo Version 4.1 - 2009 IJF rules edition - Latest Release !    08/02/20090