At big sport tournaments where multiple games are played simultaneously on a large number of fields, it is difficult as spectator to keep an overview of who is playing whom at the moment, and what the current scores are.
In particular, the website should do the following:
fetch the game schedule and field map via an API from a server.
display the current games to the user, possibly taking into account the current location of the smartphone user.
allow the user to add extra information about the game such as the current game score, colors of the shirts the teams are using etc.
synchronize the user-provided information, both to other users and back to the server.