Sum of all scores needs to be a minimum of 68. Your SAT score minimum needs to be 820. However, if your G.P.A. is 2.0 your minimum act score is 86 and your SAT score needs to be 1010. You are allowed five years to play four years. A red shirt year is simply one year of the five you practiced with the team but did not participate in competition.
Most red shirts occur during the freshman year.
It may be in your best interest to understand that those scholarships are only good when they are presented. Also, be aware that coaches are still recruiting. This means if a better player comes along, the coach can change his mind and offer your scholarship to someone else. This does happen multiple times. Please do not forget Junior College athletes that transfer.