Hugo Dellien Velasco (; born 16 June 1993) is a Bolivian professional tennis player. He has a career-high ATP singles ranking of No. 64, achieved on 1 August 2022, becoming the highest-ranked Bolivian since Mario Martínez (No. 60) in November 1983. Hugo Dellien Bio He is the current No. 1 Bolivian tennis player. He also has a career-high ATP doubles ranking of No. 185 achieved on 2 February 2015. In juniors, Dellien had a career-high combined ranking of No. 2 in March 2011.
Professional career 2019–2022: ATP, Major debuts and first wins, Olympics and top 65 debuts He made his ATP debut at the 2019 Córdoba Open as a lucky loser. At the 2019 Rio Open, Dellien defeated Carlos Berlocq in qualifying competition, Guido Andreozzi in the first round, and Roberto Carballés Baena in the second to reach the quarterfinals recording his first ATP main draw wins. Hugo became the first Bolivian player with an ATP win since Martínez at the French Open in 1984, trailing 3–1 in both sets before performing a comeback against Andreozzi to secure a historic achievement for both him and his country.
Ranked No. 128 at the 2021 Italian Open Dellien qualified for the main draw and recorded his second Masters win over world No. 36 Adrian Mannarino.
At the 2022 French Open he defeated Dominic Thiem to record his second Rolland Garros win. He reached a new career-high ranking of No. 64 on 1 August 2022 following the 2022 Wimbledon Championships.
2023: ATP semifinal, Struggling with form, out of top 150 He entered the 2023 Australian Open using protected ranking having not competed on the ATP Tour since July 2022. At the 2023 Córdoba Open, Argentina he reached again the quarterfinals as a qualifier defeating two Argentines, fifth seed Pedro Cachin and Guido Pella. Next he defeated 2021 champion Argentine Juan Manuel Cerundolo in three sets to reach his first ATP semifinal in his career. He became the first Bolivian tour-level semifinalist since Martínez in Washington in 1983. At the same tournament partnering in doubles with Pella, he lost to Nicolás Barrientos/Ariel Behar in a close match. Next he entered the 2023 Argentina Open using protected ranking. At the 2023 Rio Open, also using a protected ranking, he reached the quarterfinals for a second time in four years at this tournament with a win over ninth seed Alex Molčan in the round of 16. As a result, he moved back into the top 100 at No. 96 on 27 February 2023.
In March, due to struggling with form, he dropped out of the top 100. In May 2023, he dropped further out of the top 150. He used protected ranking to enter the 2023 Italian Open and the 2023 Geneva Open. He also entered the main draw at the 2023 French Open and at the 2023 Wimbledon Championships using the same type of ranking.
2024-2025: Three Challengers, back to top 100, Masters third round He won his eleventh Challenger title and first of the season at the 2024 Iași Open in Romania, defeating Javier Barranco Cosano and becoming the first brothers with Murkel to win a Challenger title in the same season since the Cerúndolos in 2022.
He returned to the top 100 on 21 April 2025 at world No. 99. Ranked No. 103 at the Masters 1000, the 2025 Italian Open in Rome, Dellien replaced 26th seed Félix Auger-Aliassime directly into the second round, as a lucky loser, and defeated qualifier Thiago Seyboth Wild to reach a Masters third round for the first time in his career.
National representation Dellien qualified to represent Bolivia at the 2020 Summer Olympics.
Dellien has represented Bolivia at the Davis Cup with a W/L record of 26–10.
Personal life His younger brother Murkel Dellien is also a professional tennis player who formerly played at Wichita State University. Their father, Hugo Eduardo Dellien, represented Beni Department as a substitute member of the Chamber of Deputies for the Social Democratic Power alliance from 2006 to 2010.
Dellien owned an ice cream business alongside his father, Hugo Sr., purchased with some of his early career earnings.
Dellien is married to retired tennis player Liz Camila Giangreco Campiz; the couple share a daughter.
Performance timelines
Singles
Tournament201720182019202020212022 2023 202420252026SRW–LWin %Grand Slam tournamentsAustralian OpenAA1R1RA1RQ2Q3Q10 / 30–3French OpenQ22R1RQ32R1RQ11R0 / 52–5WimbledonQ11RNHQ21R1RQ21R0 / 40–4US OpenQ12R1RQ2A1RQ11R0 / 41–4Win–loss0–02–30–30–11–20–40–00–30–00 / 163–16National representationSummer OlympicsNH1RNHNH0 / 10–1ATP Masters 1000Indian Wells MastersAANHAAAAA0 / 00–0Miami OpenAQ1NHAAAAA0 / 00–0Monte Carlo MastersAANHA1RAAA0 / 10–1Madrid OpenA2RNHA1RAAQ20 / 21-2Italian OpenAAQ22RQ21RA3R0 / 32–3Canadian OpenAANHAAAA1R0 / 10–1Cincinnati MastersAAAAAAA1R0 / 10–1Shanghai MastersAANHAAA0 / 00–0Paris MastersAAAAAAAA0 / 00–0Win–loss0–00–01–10–01–10–20–10–01–30–00 / 83–8Career statistics 201720182019202020212022202320242026|SRW–LWin (%)Tournaments00167510123Total: 53Overall win-loss8–62–112–164–72–65–11 5–12 2–40 / 5340–63Win (%) Year-End Ranking12275111119117112124
Doubles
Tournament20182019202020212022SRW–LWin %Australian OpenAA1RAA0 / 10–10%French OpenAAAA1R0 / 10–10%WimbledonQ11RNHA0 / 10–10%US OpenAAAA0 / 00–00%Win–loss0–00–10–10–00–10 / 30–30%
ATP Challenger and ITF Tour finals
Singles: 47 (32 titles, 15 runner-ups) Legend (singles)ATP Challenger Tour (16–10)ITF Futures Tour (16–5)Titles by surfaceHard (0–0)Clay (32–15)
ResultW–LDateTournamentTierSurfaceOpponentScoreLoss0–1Bolivia F2, TrinidadFuturesClay Juan-Pablo Amado2–6, 1–6Win1–1Chile F1, SantiagoFuturesClay Gonzalo Lama6–4, 6–7(6–8), 7–6(7–2)Win2–1Argentina F3, Villa del DiqueFuturesClay Gabriel Alejandro Hidalgo7–6(7–3), 2–6, 6–3Win3–1France F13, Saint-GervaisFuturesClay Johan Sébastien Tatlot6–4, 5–7, 6–3Loss3–2Bolivia F3, CochabambaFuturesClay Chase Buchanan2–6, 3–6Win4–2Bolivia F4, La PazFuturesClay Chase Buchanan7–6(7–3), 2–6, 6–4Win5–2Bolivia F5, Santa CruzFuturesClay Ryusei Makiguchi6–1, 6–1Loss5–3Morocco F1, SafiFuturesClay Gianluigi Quinzi2–6, 2–6Win6–3Bolivia F3, Santa CruzFuturesClay Christopher Díaz Figueroa6–3, 6–4Loss6–4Montevideo, UruguayChallengerClay Pablo Cuevas2–6, 4–6Loss6–5 F3, Santo DomingoFuturesClay Fabiano de Paula6–7(4–7), 2–6Win7–5Germany F10, WetzlarFuturesClay Jan Choinski6–3, 6–3Win8–5Austria F6, VogauFuturesClay Omar Giacalone6–4, 2–6, 6–2Win9–5USA F5, WestonFuturesClay Dominik Köpfer6–2, 7–5Loss9–6Sweden F1, KarlskronaFuturesClay Jan Choinski5–7, 6–4, 2–6Win10–6Sweden F2, BåstadFuturesClay Yannick Vandenbulcke6–4, 5–7, 6–2Win11–6Turkey F22, IstanbulFuturesClay Mario Vilella Martínez6–2, 1–6, 6–2Win12–6Turkey F23, IstanbulFuturesClay Antoine Hoang6–3, 6–2Win13–6Romania F9, BucharestFuturesClay Dragoș Dima6–2, 6–4Win14–6Bolivia F2, CochabambaFuturesClay Felipe Mantilla6–4, 6–2Win15–6Bolivia F3, Santa CruzFuturesClay Juan Carlos Sáez6–4, 6–2Win16–6Italy F3, Santa Margherita di PulaFuturesClay Martín Cuevas6–4, 7–6(7–3)Win17–6Sarasota, USAChallengerClay Facundo Bagnis2–6, 6–4, 6–2Win18–6Savannah, USAChallengerClay Christian Harrison6–1, 1–6, 6–4Win19–6Vicenza, ItalyChallengerClay Matteo Donati6–4, 5–7, 6–4Loss19–7Marburg, GermanyChallengerClay Juan Ignacio Londero6–3, 5–7, 4–6Win20–7Santiago, ChileChallengerClay Wu Tung-lin5–7, 7–6(7–1), 6–1Win21–7Milan, ItalyChallengerClay Danilo Petrović7–5, 6–4Loss21–8Guayaquil, EcuadorChallengerClay Thiago Seyboth Wild4–6, 0–6Win22–8Lima, PeruChallengerClay Camilo Ugo Carabelli6–3, 7–5Win23–8Montevideo, UruguayChallengerClay Juan Ignacio Londero6–0, 6–1Loss23–9Florianópolis, BrazilChallengerClay Igor Marcondes2–6, 4–6Win24–9Santiago, ChileChallengerClay Alejandro Tabilo6–3, 4–6, 6–4Loss24–10Concepción, ChileChallengerClay Tomás Martín Etcheverry3–6, 2–6Win25–10Santiago, ChileChallengerClay Thiago Seyboth Wild3–6, 6–3, 6–3Loss25–11Lüdenscheid, GermanyChallengerClay Duje Ajdukovic5–7, 4–6Win26–11Curitiba, BrazilChallengerClay Oliver Crawford7–6(8–6), 4–6, 7–6(7–1)Win27–11Iași, RomaniaChallengerClay Javier Barranco Cosano6–1, 6–1Win28–11Liberec, Czech RepublicChallengerClay Elmer Møller5–7, 6–4, 6–1Win29–11Bonn, GermanyChallengerClay Maximilian Marterer7–6(7–2), 6–0Loss29–12Uruguay Open, UruguayChallengerClay Tristan Boyer2–6, 4–6Loss29–13Rosario, ArgentinaChallengerClay Camilo Ugo Carabelli6–3, 3–6, 2–6Win30–13Prostějov, Czech RepublicChallengerClay Tseng Chun-hsin6–3, 6–4Loss30–14São Leopoldo, BrazilChallengerClay Facundo Díaz Acosta7–5, 2–6, 4–6Win31–14Santa Cruz, BoliviaChallengerClay Juan Carlos Prado Ángelo6–4, 7–5Win32–14Trieste, ItalyChallengerClay Matej Dodig5–7, 6–4, 6–2Loss32–15Porto, PortugalChallengerClay Facundo Mena6–7(4–7), 4–6
Doubles: 38 (18 titles, 20 runner-ups) Legend (doubles)ATP Challenger Tour (1–6)ITF Futures Tour (17–14)Titles by surfaceHard (0–1)Clay (18–19)Grass (0–0)Carpet (0–0)