I have decided to compile a list of resources on the most common rules and regulations for common martial sports. The links are by no means universally accepted, and your first job if you are entering a competition is to FIND OUT THE PARTICULAR COMPETITION'S RULES.
However, hopefully this will give you a general picture of how different competition types are run:Point Sparring:http://www.ninefistwarriors.com/rules.htmWTF: http://www.wtf.org/site/rules/competition.htmITF: http://www.itf-information.com/information10a.htmJudo: http://www.judoinfo.com/rules1.htmMMA: http://www.mmaweekly.com/absolutenm/templates/dailynews.asp?articleid=1370&zoneid=18Amateur Boxing: http://www.ababoxing.com/articles.php?cat_id=19Wrestling: http://www.fila-wrestling.com/download/reglean0306.pdfMuay Thai: http://www.ikfkickboxing.com/RulesMT.htm
If a link is broken, please PM me and I will update it. If there is a rules set that you feel should be included, please PM me.