As a 6-foot-6-inch All-American forward for the Utah State Aggies, Estes was the fourth-leading scorer in Utah State history, with 2,001 points and the fourth-leading rebounder (893). He holds school records for career points per game (26.7), free throws made in a career (469), consecutive 10-point games (64), points in a season (821), points per game in a season (33.7), points in a game (52), and rebounds in a game (28). He was the second leading scorer in the nation in 1965, just behind Rick Barry.

Estes passed tragically after scoring 48 points in his final game.

Estes was posthumously given All-American honors by the Associated Press and also earned a posthumous consensus Second Team All-American distinction. His number of #33 was posthumously retired by the Aggies.

Died February 8, 1965