Avendaño won the silver medal at the 2018 Central American and Caribbean Games held in Barranquilla, Colombia in the men's 77 kg event.

[2] At the 2019 Pan American Wrestling Championships held in Buenos Aires, Argentina, he won the gold medal in the men's 87 kg event.

[3] In 2018, he won the gold medal in the men's 82 kg event at the Pan American Wrestling Championships held in Lima, Peru.

[4] At the 2019 Pan American Games held in Lima, Peru, he won the gold medal in the men's 87 kg event.

[9] Avendaño won the silver medal in his event at the 2024 Pan American Wrestling Championships held in Acapulco, Mexico.