What are the four regular substitution opportunities in AYSO matches according to the National Rules and Regulations?

The four regular substitution opportunities in AYSO matches are specifically designed to ensure that teams have the chance to rotate players effectively while maintaining the flow of the game. These opportunities occur midway through each half, at halftime, and during stoppages for injuries.

Midway through each half allows teams to utilize substitutions as a strategic element while also giving players a brief respite. The halftime substitution gives teams the ability to adjust their lineup based on performance during the first half or to substitute players who may need rest or are less effective. Additionally, allowing substitutions for injuries prioritizes player safety and health, permitting coaches to replace players who cannot continue to play.

This structured approach to substitutions not only supports the game's competitive balance but also ensures players can be refreshed and engaged throughout the match. The other answer choices either limit the options for substitutions or suggest a level of flexibility not permitted in AYSO matches, which emphasizes the importance of adhering to established guidelines in youth soccer for both the fairness of the competition and player welfare.