[3] On May 7, 2022, Aguirre won a 4-man tournament at Buenos Aires Top Fight 4.
In the semifinals he defeated Bruno Marques from Brazil by second-round technical knockout.
In the quarterfinals he defeated reigning Wu Lin Feng -65 kg champion Meng Gaofeng by unanimous decision after scoring a knockodown.
[8] He advanced to the semifinals where he faced Krush champion Shu Inagaki who defeated him by unanimous decision after Aguirre suffered a knockdown.
[10] Aguirre faced Yuzuki Satomi at K-1 World MAX 2025 on February 9, 2025.