Parrilla played Boys U14 Singles at the 2011 International Racquetball Federation (IRF) World Junior Championships in Santo Domingo, Dominican Republic, where he lost in the quarterfinals to Bolivia's Marcelo Vargas, 15–11, 15–14.

[1] He next played at World Juniors in 2013, when Parrilla won Boys U16 Singles in Sucre, Bolivia, where he defeated Coby Iwaasa in the semi-finals, 15–5, 15–6, and Rodrigo Montoya, 15–9, 15–11.

[3] While still a teenager, Parrilla made his first appearance with the Mexico National Team at the 2014 Pan American Racquetball Championships in Santa Cruz, Bolivia in Men's Singles.

He reached the final by beating Bolivia's Carlos Keller in the quarterfinals, 7–15, 15–11, 11–6, and Canada's Vincent Gagnon, 15–10, 15–9, in the semi-finals, and lost to USA's Jose Rojas, 15–4, 15–11.

[12] Then in October, Parrilla won the 2017 Casino Racquetball Open in Mexicali, Mexico by defeating Alejandro Landa in the semi-finals, 15–8, 15–11, and Álvaro Beltrán in the final, 15–9, 15–9.

[5] Parrilla made his second appearance on the Mexico National Team at the 2018 Pan American Racquetball Championships in Temuco, Chile, where he earned a bronze medal in Men's Singles after losing to USA's David Horn in the semi-finals, 15–13, 15–14.

At the Open, Parrilla beat Samuel Murray in the Round of 16, 15–8, 15–8, and Alejandro Landa in the quarterfinals, 6–15, 15–10, 11–5, and then lost to Kane Waselenchuk in the semis, 15–3, 15–12.

He defeated Ramon De Leon of the Dominican Republic, 15–6, 15–4, in the Round of 16, but lost to Bolivia's Conrrado Moscoso, 15–12, 15–14, in the quarterfinals.

[19] En route to the title, he defeated Sebastian Franco, 15–10, 15–11, in the quarterfinals, Daniel de la Rosa, 7–15, 15–10, 11–7, in the semi-finals, and then came back from a game down to beat Kane Waselenchuk, 14–15, 15–2, 11–10.