| Challenger Florianopolis | 12/08 19:45 | 26 | [327] Hernan Casanova v Hugo Dellien [119] | 0-6,3-6 | |
| Challenger Florianopolis | 12/07 13:00 | 25 | [247] Federico Zeballos v Hugo Dellien [119] | 6-7,2-6 | |
| Challenger Sao Paulo | 12/03 13:00 | 27 | [160] Nicolas Jarry v Hugo Dellien [119] | 7-6,7-6 | |
| Challenger Sao Paulo | 12/01 12:30 | 26 | [401] Daniel Dutra Da Silva v Hugo Dellien [119] | 6-4,1-6,3-6 | |
| Challenger Sao Paulo | 11/29 16:05 | 25 | [286] Matheus P De Almeida v Hugo Dellien [119] | 3-6,5-7 | |
| Challenger Brasilia | 11/25 14:00 | 26 | [342] Hernan Casanova v Hugo Dellien [119] | 6-4,6-4 | |
| Challenger Brasilia | 11/22 18:05 | 25 | [160] Nicolas Jarry v Hugo Dellien [119] | 3-6,6-3,5-7 | |
| Challenger Montevideo | 11/14 20:00 | 29 | [130] Hugo Dellien v Juan Ignacio Londero [159] | 6-0,6-1 | |
| Challenger Montevideo | 11/13 22:00 | 28 | [70] Federico Coria v Hugo Dellien [130] | 6-2,6-7,6-7 | |
| Challenger Montevideo | 11/12 19:30 | 27 | [78] Facundo Bagnis v Hugo Dellien [130] | Retired | |
| Challenger Montevideo | 11/11 21:30 | 26 | [262] Timofey Skatov v Hugo Dellien [130] | 4-6,6-4,3-6 | |
| Challenger Montevideo | 11/09 16:00 | 25 | Francisco Llanes v Hugo Dellien | 2-6,4-6 | |
| Challenger Guayaquil | 11/03 18:05 | 26 | [129] Hugo Dellien v Jesper De Jong [232] | 1-6,0-6 | |
| Challenger Guayaquil | 11/02 17:10 | 25 | [129] Hugo Dellien v Pedja Krstin [307] | 6-4,6-2 | |
| Challenger Lima | 10/29 21:10 | 27 | [128] Hugo Dellien v Juan Manuel Cerundolo [94] | 6-7,7-6,4-6 | |
| Challenger Lima | 10/27 20:00 | 26 | [128] Hugo Dellien v Nicolas Kicker [250] | 6-2,6-0 | |
| Challenger Lima | 10/26 19:50 | 25 | [128] Hugo Dellien v Goncalo Oliveira [299] | 0-6,6-2,6-2 | |
| Challenger Buenos Aires | 10/23 14:00 | 27 | [128] Hugo Dellien v Juan Manuel Cerundolo [102] | 6-2,5-7,6-7 | |
| Challenger Buenos Aires | 10/20 17:15 | 26 | [128] Hugo Dellien v Felipe M R Alves [187] | 3-6,7-5,7-6 | |
| Challenger Buenos Aires | 10/18 17:35 | 25 | [128] Hugo Dellien v Facundo D Acosta [338] | 4-6,6-0,6-1 | |
| Challenger Santiago | 10/08 18:00 | 27 | [128] Hugo Dellien v Nicolas Jarry [217] | 6-7,4-6 | |
| Challenger Santiago | 10/07 21:10 | 26 | [128] Hugo Dellien v Camilo Ugo Carabelli [220] | 6-2,4-6,6-2 | |
| Challenger Santiago | 10/05 15:35 | 25 | [128] Hugo Dellien v Lucas Catarina [350] | 4-6,6-3,6-3 | |
| Challenger Lima | 10/03 17:00 | 29 | [140] Hugo Dellien v Camilo Ugo Carabelli [245] | 6-3,7-5 | |
| Challenger Lima | 10/02 18:50 | 28 | [380] Johan Nikles v Hugo Dellien [140] | 7-6,4-6,2-6 | |
| Challenger Lima | 10/01 16:25 | 27 | [286] Nicolas Kicker v Hugo Dellien [140] | 5-7,2-6 | |
| Challenger Lima | 09/29 15:00 | 26 | [248] Facundo Mena v Hugo Dellien [140] | 4-6,4-6 | |
| Challenger Lima | 09/27 17:25 | 25 | [356] Nick Hardt v Hugo Dellien [140] | 3-6,2-6 | |
| Challenger Ambato | 09/21 15:00 | 25 | Hugo Dellien v Pedro Sakamoto | Cancelled | |
| Davis Cup | 09/19 16:40 | - | [144] Hugo Dellien v Michael Geerts [289] | 4-6,6-4,2-6 |
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.