Hugo Dellien

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. 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.

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. 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. 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.

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. 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

Doubles

ATP Challenger and ITF Tour finals

Singles: 46 (32 titles, 14 runner-ups) Legend (singles)ATP Challenger Tour (16–9)ITF Futures Tour (16–5)Titles by surfaceHard (0–0)Clay (32–14)

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)

Davis Cup

Participations: (26–10)

Group membershipWorld Group (0–0)WG play-off (0–0)Group I (0–0)Group II (14–10)Group III (12–0)Group IV (0–0)Matches by surfaceHard (2–6)Clay (24–4)Grass (0–0)Carpet (0–0)Matches by typeSingles (18–7)Doubles (5–3) indicates the outcome of the Davis Cup match followed by the score, date, place of event, the zonal classification and its phase, and the court surface.

Record against top 10 players

Dellien's match record against those who have been ranked in the top 10 is as follows (former #1 in bold):

Ernests Gulbis 1–0 Gilles Simon 1–0 Dominic Thiem 1–0 Janko Tipsarević 1–0 Novak Djokovic 0–1 Richard Gasquet 0–1 Karen Khachanov 0–1 Daniil Medvedev 0–1 Rafael Nadal 0–1 Kei Nishikori 0–1 Cameron Norrie 0–1 Fernando Verdasco 0–1 Stefanos Tsitsipas 0–1 Hubert Hurkacz 0–2 Casper Ruud 0–2 Alexander Zverev 0–2