Sports Pool Software/Website

Im looking for someone to build me some software for a website I am creating, ideally I would LOVE IT if it could be used as a wordpress plugin or addon as Im fairly familir with Wordpress. I want a duplicate of http://loserpool.ca. Im not concerned about the design of the website as I can handle that, more so the databasing and programming of such a program. The way it works is as follows Every Saturday you pick a team to lose. If you are correct you login the next week and make your next weeks pick. Everything should be run online and to get a better idea feel free to browse the site I listed above ([login to view URL]) I'd also love it if it could be used for more then just one sport. I apologize for the vague details but if you feel you can do this or need to ask me any questions please feel free to contact me.