He is a two-weight ISKA World champion and one-time Wu Lin Feng Tournament winner.
Gallardo fought a rematch with Yetkin Ozkul in the tournament final, which he won by a first-round technical knockout.
Gallardo was scheduled to face Cedric Castagna at Nuit Des Champions on February 24, 2018, for the ISKA World -65 kg title.
He lost the fight by a first-round technical knockout, succumbing to a series of hooks in the third minute of the round.
[6] Gallardo's losing streak extended to four fights, after he dropped a decision to Yannick Reine at Nuit Des Gladiateurs 10 on January 19, 2019.
[8] Gallardo was scheduled to fight Zheng Junfeng in the semifinals of the 2019 Wu Lin Feng Contender Tournament.