If your tournament is using the Player Scorekeeping feature,
You can download the CompuSport App on your application store.
Create a log in. (Use your first and last name, like the tournament would)
Find your tournament, by clicking on Tournament or under the Current league or tournament section.
Your match will be the first on top:
Click on Enter Score.
Click on Enter Score Again: (or scoresheet)
Your scoresheet will open, you can start entering names, points, ERO's. Whatever is needed.
Once that is filled, Click on Finish Match.