|Hometown:||Aguas Buenas, Puerto Rico|
|High School:||Colegio Adianez|
Llinas used his redshirt in 2013.
Llinas attended Colegio Adianez in Guaynabo, Puerto Rico where he was the 2012 Adianez Invitational Tournament MVP. In 2011 he led his Puerto Rican Junior National team to a 15th place finish at the Boys' Youth World Championships. He also competed in the backstroke for his high school's swimming team. Academically, he was the Academic Athlete of the Year at Colegio Adianez.
Giovanni is the son of José and Sally Rosa, he has two siblings Naomi and Soeli. He plans to study Engineering Physics at Pacific. When not competing Giovanni enjoys going to the beach and mall, and hanging out with his friends.