Football World Cup guess score game - browser

I need a new website. I need a site where players sign up, login and Pick what they think the score of each game is going to be for the upcoming football World Cup. Similar to this - [login to view URL] but it's World Cup teams not premier league. It would be good if it was customisable to use for other things once World Cup is over. Ie names and logo are easily changeable. Players will only be able to place predictions one day at a time. Ie they need login every game day The site will need to have a way for me to easily post results as admin and once I confirm the results, the leaderboard automatically updates. It needs to have an updats area on the main page and reminder email to all players 4 hours before the first game of the day kicks off. It also needs a way for me to manually send bulk communication to all players via their registration email address