What is the typical role of a fourth official in an AYSO match?

The role of the fourth official in an AYSO match primarily involves assisting the referee with various administrative tasks related to the game. This includes managing player substitutions, allowing teams to make changes in a structured manner, and ensuring that these substitutions happen in accordance with the rules. The fourth official is also responsible for timekeeping responsibilities, which include tracking the match duration and the amount of stoppage time to be added.

This support is crucial for the smooth operation of the match, as it allows the central referee to focus on the on-field action, ensuring that the game flows properly without unnecessary interruptions. In addition, the fourth official can help communicate any issues or adjustments needed between the teams and officials.