Abstract: A scoreboard control system is provided for enabling web-based access and real-time control of a scoreboard display associated with a particular venue, by users that can use their personal computing devices. The scoreboard is provided with a scoreboard computer adapter, operatively connected to a hosted web application server. The web server may send messages to specified users prompting them to access the system, or may passively receive messages from users seeking access rights to operate the scoreboard. The web server, upon authenticating an end user computing device with respect to the venue and a specified event, generates a web interface on the end user device display that is customized with respect to an associated scoreboard profile, and transmits scoreboard commands received via the web interface to the scoreboard computer adapter. The adapter directs updating of the display in accordance with the respective scoreboard commands and in real time.