I keep track of RC onroad racing with this component and you can pretty much do the same for any form of racing sports. Its unique, you cannot find anything like it for Joomla or any other CMS and it is getting refined all the time. This latest version (0.3 Rev108) has the workflow ironed out better, integrates beautifully with CB (and now begging Julien to the same for JomSocial) plus the three modules that come with it are awesome!

Julien spends time responding to user requests and answers to problems with good solutions. Sometimes when he is on a roll, he'll even email you with solutions, not wanting to wait for you to go to the forums to check his replies. Now that is excellent!