Use the Arbiter tool to schedule your volunteer work as a referee.
Link to the Arbiter tool:Arbiter

For instructions to assign yourself to a game and to record the game score, see
Arbiter Instructions for self-assigning and recording game scores

The center referee must record the game score in the Arbiter tool.
The center referee must also record which players scored goals and the number of goals scored by each player. For instructions to record which players scored, see How2ReportGameScores.pdf