Marcelo Aguiar, a seasoned mixed martial artist, competed with a record of 2-3-1, primarily in the welterweight division at 170 lbs. Known for his orthodox stance, Aguiar demonstrated an average ELO rating of 985 during his career. In terms of performance statistics, Aguiar averaged zero significant strikes per minute and maintained a striking accuracy of 0%, absorbing an equal number of strikes per minute while boasting a strike defense of 0%. His takedown attempts were also minimal, with no successful takedowns or submission attempts recorded during his UFC career. Aguiar's most notable achievement came in the form of several victories outside the UFC, but within the Octagon, he faced adversity, losing his only UFC bout to Matt Hughes via KO/TKO on June 9, 2000. This marked the end of Aguiar's active fighting career, as no further fights are recorded in his recent history.