Alex Obert grew up in Loomis, California and attended Del Oro High School, where he excelled in water polo, basketball, and swimming.

[citation needed] In his first season at Pacific, Obert flashed tremendous potential in his role as a two-meter defender.

He finished his freshman year with eight goals, nine steals, three assists, thirteen drawn ejections, and four field blocks.

He scored twice in the Tigers’ sudden death loss to University of California, Irvine at the Mountain Pacific Sports Federation Tournament.

[citation needed] Obert moved to the center position in his sophomore year at Pacific with the ability to be one of the nations top two-meter players.

His status was cemented as he earned Second Team All-America honors from the ACWC after racking up fifty-one goals on the season and averaging 2.32 scores per game, ranking ninth in the conference.

[citation needed] Obert earned Second Team All-America honors from the AWPCA after scoring forty-four goals in twenty-eight games, which ranked seventeenth in the MPSF.

From August 19–24, he participated with the US Men's National Team over the summer of 2014 at the FINA World Cup in Almaty, Kazakhstan, where he scored six goals, helping the US to a fourth-place finish.

[citation needed] Obert's sister Isabelle played collegiate volleyball and basketball at Butler University.