| Challenger Campinas | 10/01 21:30 | 25 | [105] Hugo Dellien v Thiago Seyboth Wild [453] | 1-6,7-5,4-6 | |
| Challenger Como | 08/28 11:00 | 25 | [351] Facundo Arguello v Hugo Dellien [105] | 6-4,6-3 | |
| US Open | 08/22 15:00 | 44 | [105] Hugo Dellien v Daniel Elahi Galan [184] | 1-6,6-7 | |
| Challenger Sopot | 08/02 15:00 | 26 | [100] Hugo Dellien v Tommy Robredo [216] | 2-6,6-3,3-6 | |
| Challenger Sopot | 07/31 13:00 | 25 | Hugo Dellien v Vladyslav Manafov | Retired | |
| Challenger Tampere | 07/28 12:30 | 28 | [106] Hugo Dellien v Juan Ignacio Londero [136] | 4-6,2-6 | |
| Challenger Tampere | 07/27 14:05 | 27 | [106] Hugo Dellien v Kamil Majchrzak [203] | 6-7,6-3,6-1 | |
| Challenger Tampere | 07/26 13:30 | 26 | [106] Hugo Dellien v Jelle Sels [373] | 6-4,7-5 | |
| Challenger Tampere | 07/24 10:00 | 25 | Hugo Dellien v Kenneth Raisma | Retired | |
| Challenger Braunschweig | 07/12 12:15 | 27 | [254] Arthur De Greef v Hugo Dellien [120] | 6-4,6-1 | |
| Challenger Braunschweig | 07/11 11:00 | 26 | [120] Hugo Dellien v Jurgen Zopp [107] | 6-2,3-6,6-1 | |
| Challenger Braunschweig | 07/10 15:05 | 25 | [227] Tobias Kamke v Hugo Dellien [120] | 1-6,3-6 | |
| Challenger Marburg | 07/07 13:00 | 29 | [170] Juan Ignacio Londero v Hugo Dellien [120] | 3-6,7-5,6-4 | |
| Challenger Marburg | 07/06 14:00 | 28 | Hugo Dellien v Julian Lenz | 6-3,6-3 | |
| Challenger Marburg | 07/05 10:00 | 27 | [164] Andrej Martin v Hugo Dellien [120] | 2-6,1-6 | |
| Challenger Marburg | 07/04 13:25 | 26 | [274] Thomaz Bellucci v Hugo Dellien [120] | 6-3,3-6,6-7 | |
| Challenger Marburg | 07/03 16:15 | 25 | [420] Tristan Lamasine v Hugo Dellien [120] | 2-6,2-6 | |
| Wimbledon Qual | 06/25 12:20 | 44 | [113] Hugo Dellien v Go Soeda [180] | 4-6,2-6 | |
| Challenger L'Aquila | 06/18 12:45 | 25 | [113] Hugo Dellien v Martin Cuevas [291] | 6-3,6-7,6-7 | |
| Challenger Almaty | 06/12 04:00 | 25 | Alen Avidzba v Hugo Dellien | 6-4,6-4 | |
| Challenger Shymkent | 06/08 05:00 | 28 | [292] Roberto Cid Subervi v Hugo Dellien [145] | 6-7,6-4,6-1 | |
| Challenger Shymkent | 06/07 05:00 | 27 | [272] Aleksandr Nedovyesov v Hugo Dellien [145] | 6-3,1-6,0-6 | |
| Challenger Shymkent | 06/06 10:10 | 26 | [274] Ante Pavic v Hugo Dellien [145] | 2-6,4-6 | |
| Challenger Shymkent | 06/05 09:40 | 25 | [290] Roberto O-Olmedo v Hugo Dellien [145] | 6-3,6-7,0-6 | |
| Challenger Vicenza | 06/03 09:15 | 29 | [145] Hugo Dellien v Matteo Donati [236] | 6-4,5-7,6-4 | |
| Challenger Vicenza | 06/02 11:30 | 28 | [295] Gian Marco Moroni v Hugo Dellien [145] | 4-6,4-6 | |
| Challenger Vicenza | 06/01 11:30 | 27 | [145] Hugo Dellien v Roberto Quiroz [239] | 6-1,6-0 | |
| Challenger Vicenza | 05/31 09:00 | 26 | [145] Hugo Dellien v Marc Polmans [177] | 6-4,6-2 | |
| Challenger Vicenza | 05/29 14:40 | 25 | Hugo Dellien v Enrique Lopez-Perez | 6-0,5-7,6-0 | |
| French Open Qual | 05/23 12:05 | 45 | [185] Adam Pavlasek v Hugo Dellien [139] | 6-3,6-1 |
Wikipedia - Hugo Dellien
Hugo Dellien Velasco (Spanish pronunciation: [ˈuɣo ðeˈljen]; 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. 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.