Duilio Beretta

Duilio Beretta Avalos (born February 25, 1992) is a Peruvian professional tennis player.

He won the finals stage of Boys' Doubles events on the French Open and US Open with Ecuadorian tennis player Roberto Quiroz in 2010. They defeated Argentinian pair Facundo Argüello and Agustín Velotti in France and won against Oliver Golding and Jiří Veselý in the United States.

Evolution in the ATP ranking (singles)
Changes in the ranking ATP to the end of the season.

Evolution in the ATP ranking (doubles)
Changes in the ranking ATP to the end of the season.