Duilio Beretta Avalos (; born 25 February 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 the Argentinian pair Facundo Argüello and Agustín Velotti in France and won against Oliver Golding and Jiří Veselý in the United States.
ATP Challenger and ITF Futures finals
Singles: 8 (2–6) Legend (singles)ATP Challenger Tour (0–0)ITF Futures Tour (2–6)Finals by surfaceHard (0–0)Clay (2–6)Grass (0–0)
ResultW–LDateTournamentTierSurfaceOpponentScoreLoss0–1Chile F2FuturesClay Guillaume Rufin2–6, 2–6Loss0–2Venezuela F3FuturesClay David Souto2–6, 3–6Win1–2Paraguay F2FuturesClay Marco Trungelliti4–6, 7–6(7–2), 6–3Loss1–3Argentine F8FuturesClay Facundo Argüello6–3, 2–6, 6–7(4–7)Loss1–4Peru F1FuturesClay Maximiliano Estévez6–7(2–7), 6–7(3–7)Loss1–5Peru F3FuturesClay Agustín Velotti2–6, 4–6Loss1–6Peru F1FuturesClay Renzo Olivo5–7, 6–3, 1–6Win2–6Peru F6FuturesClay Jorge Aguilar5–7, 6–3, 7–5
Doubles: 26 (18–8) Legend (doubles)ATP Challenger Tour (1–2)ITF Futures Tour (17–6)Finals by surfaceHard (2–1)Clay (16–7)Grass (0–0)
ResultW–LDateTournamentTierSurfacePartnerOpponentsScoreLoss0–1Chile F5, SantiagoFuturesClay Sergio Galdós Federico Zeballos4–6, 4–6Win1–1Ecuador F2, GuayaquilFuturesHard Roberto Quiroz Christopher Racz6–4, 6–4Win2–1Chile F2, SantiagoFuturesClay Sergio Galdós Rodrigo Pérez5–7, 7–6(7–5), [10–5]Win3–1Chile F3, SantiagoFuturesClay Roberto Quiroz Miguel Ángel Reyes-Varela6–4, 7–5Win4–1Peru F1, ArequipaFuturesClay Sergio Galdós Guido Pella6–4, 6–0Loss4–2Peru F1, ChosicaFuturesClay Sergio Galdós Renzo Olivo3–6, 6–7(8–10)Loss4–3Peru F6, LimaFuturesClay Sergio Galdós Renzo Olivo4–6, 3–6Win5–3Manta, EcuadorChallengerHard Renzo Olivo Víctor Estrella João Souza6–3, 6–0Win6–3Colombia F2, MedellínFuturesClay Ariel Behar Michael Quintero2–1 ret.Win7–3Ecuador F3, QuitoFuturesClay Sergio Galdós Guillermo Rivera Aránguiz6–2, 6–1Win8–3Chile F8, CoquimboFuturesClay Gustavo Sterin Guillermo Rivera Aránguiz6–4, 7–5Loss8–4Argentina F4, CalamuchitaFuturesClay Sergio Galdós Mauricio Perez Mota1–6, 1–6Win9–4Argentina F6, Río CuartoFuturesClay Sergio Galdós Jose Angel Carrizo4–6, 6–4, [10–1]Loss9–5Argentina F7, Bell VilleFuturesClay Sergio Galdós Guillermo Durán3–6, 4–6Win10–5Argentina F8, ArroyitoFuturesClay Sergio Galdós Pablo Galdón6–0, 7–5Win11–5Ecuador F1, GuayaquilFuturesClay Roberto Quiroz Rodrigo Sánchez6–1, 6–3Loss11–6Ecuador F2, GuayaquilFuturesHard Nicolas Alvarez Roberto Quiroz1–6, 4–6Win12–6Peru F1, ArequipaFuturesClay Rodrigo Sánchez Iván Endara6–2, 6–4Win13–6Peru F2, LimaFuturesClay Rodrigo Sánchez Cristóbal Saavedra Corvalán6–3, 5–7, [10–2]Loss13–7Quito, EcuadorChallengerClay Martín Cuevas Marcelo Demoliner João Souza4–6, 4–6Win14–7Dominican Republic F2FuturesClay Hugo Dellien Thiago Monteiro3–6, 6–4, [10–8]Win15–7Dominican Republic F3FuturesClay Hugo Dellien Manuel Sánchez6–7(9–11), 6–4, [10–4]Win16–7Chile F4, SantiagoFuturesClay Jorge Aguilar Alexandre Tsuchiya6–1, 6–4Win17–7Chile F5, SantiagoFuturesClay Jorge Aguilar Mariano Kestelboim6–2, 6–2Loss17–8Barranquilla, ColombiaChallengerClay Mauricio Echazú Marcelo Arévalo Sergio Galdós1–6, 4–6Win18–8Peru F6, TrujilloFuturesClay Andrea Collarini Jaume Pla Malfeito6–4, 6–3
Junior Grand Slam finals Doubles: 2 (2 titles) ResultYearTournamentSurfacePartnerOpponentsScoreWin2010French OpenClay Roberto Quiroz Facundo Argüello Agustín Velotti6–3, 6–2Win2010US OpenHard Roberto Quiroz Oliver Golding Jiří Veselý6–1, 7–5
Evolution in the ATP ranking (singles) Changes in the ranking ATP to the end of the season. Year20082009201020112012Singles ranking 1480 943 811 392 394
Evolution in the ATP ranking (doubles) Changes in the ranking ATP to the end of the season. Year2009201020112012 Doubles ranking 1256 944 473 240
Notes
External links