Agassi was born and raised in Tangerang, a city located in the west outskirt of Jakarta.

He improved vastly during his junior year and led his team in scoring with 16 points per game while shooting 45 percent.

Agassi again improved during his senior year as he led Walnut High to the semi-final of the Glendora Basketball Tournament.

Agassi was called to represent Indonesia during 2018 Asian Games 3x3 Basketball where he and his team finished third on their pool which consisted of teams from China, Thailand, Indonesia, Sri Lanka and Vietnam.

He was called to join the national team for the 2021 FIBA Eastern Region Pre-Qualifiers where he and his team successfully secured a spot at FIBA Asia Cup 2021 Qualifiers which is scheduled to be held in November 2019.