Here's a template I like:http://www.templatemonster.com/wordpress-themes/26249.html but you would have to modify it quite a bit for your needs. This place here used a template from elegantthemes.com and integrated it really well for a bjj website: http://www.jiujitsuct.com I actually train bjj and am working on my academy's website using a template from elegantthemes.com, do you train at this place or are you just doing their website?
I have this martial arts theme may have other will need to look. http://geoffreyfoggon.com/index.php/wordpress/sports/