It is in Java using Swing. I have tested it on Windows 2000, Windows XP, Red Hat Linux, Apple Power Books w/OSX all seem to run great.
I have also integrated Hypersonic a Java Database so that the Boys can register ahead of time and the race results can be saved.
The features that I have added so far are:
1) Registration for racers (Boy's name, Car Name)
2) Schedule (Input # of Lanes and Rounds and you get a race schedule i.e. who is in what lane for which heat) I followed Young and Pope Partial Perfect N (http://members.aol.com/StanDCmr/ppngen.html)
3) Integration with the Judge