Not sure how that relates to Arujau, who graduated in 2023. In any case, in the Ivy League there really is no such thing as an "Olympic red shirt," just as there is no such thing as a generic red shirt. If you are enrolled, your eligibility clock is running. In addition, you have five years after graduating HS to get your four Ivy years of eligibility; that was modified to four in *six* due to the lost COVID year.