Tourney Scoreboards on CC are very limited as to what they can achieve.
But with Google Sheets the path is open for CRRAAAZZZZYYYIIILLYYY COMPLICATED TOURNAMENTS!
With good communication between Tournament Organisers (By CC Mail) and Players. You can distribute a link to all players playing in your Tournament which will taken them directly to your Scoreboard. Now, Google Sheets is not Excel, but for the purposes of Scoreboards, it's not far off it!
Best example I can give of the capability is the Super League:
With the requirement to run 26 Leagues of 10 Players with a scoring system awarding 3 points for a 4-0 win, 2 points for a 3-1 won, 1 point for a 2-2 win, zero for a defeat, players taking rest seasons, players being kicked, goal difference it is a very complicated Scoreboard for the Tournament to say the least. But to give you some idea of what can be achieved in your Tournaments, go here. Note, there are 3 Tabs on the Scoreboard!:
Hopefully that gives Tournament Organisers some inspiration!