[1][2] Queiroz was at the 2018 Summer Youth Olympics held in Buenos Aires, Argentina, finishing in 5th place in the Boys' Greco-Roman 92 kg category.

[3] At the 2021 Pan American Wrestling Championships held in Guatemala City, he won a bronze medal in the 97 kg category.

[5][6][7] As a result, he directly qualified to compete in the 97 kg event at the 2023 Pan American Games in Santiago, Chile.

In the next round, Basar was beaten 3-1 by the Armenian Artur Aleksanian and prevented Igor from returning to the repechage.

[11] At the 2023 Pan American Wrestling Championships held in Buenos Aires, Argentina, Queiroz won a bronze medal in the 97 kg category.