| ATP Buenos Aires | 02/27 15:10 | 14 | Hugo Dellien v Pedro Sakamoto | Walkover | |
| ATP Cordoba | 02/23 18:30 | 25 | [112] Hugo Dellien v Marco Cecchinato [87] | 2-6,6-4,1-6 | |
| Challenger Concepcion | 02/19 16:45 | 27 | [312] Sebastian Baez v Hugo Dellien [112] | 6-1,6-1 | |
| Challenger Concepcion | 02/18 15:00 | 26 | [379] Hernan Casanova v Hugo Dellien [112] | 1-6,3-6 | |
| Challenger Concepcion | 02/16 17:25 | 25 | [235] Felipe M R Alves v Hugo Dellien [112] | 0-6,6-7 | |
| Australian Open | 02/08 06:40 | 23 | [68] Dominik Koepfer v Hugo Dellien [112] | 7-5,6-2,6-4 | |
| ATP Great Ocean Road Open | 02/02 07:00 | 24 | [112] Hugo Dellien v Cedrik-Marcel Stebe [128] | 4-6,4-6 | |
| Australian Open | 01/13 10:35 | 19 | [111] Hugo Dellien v Carlos Alcaraz [141] | 2-6,3-6 | |
| Australian Open | 01/12 12:50 | 15 | [111] Hugo Dellien v Andrew Harris [232] | 6-4,7-6 | |
| Australian Open | 01/11 09:40 | 60 | [111] Hugo Dellien v Alejandro Tabilo [167] | 6-1,6-0 | |
| French Open | 09/29 11:30 | 23 | [104] Hugo Dellien v Ricardas Berankis [66] | 1-6,4-6,4-6 | |
| ATP Rome | 09/13 11:15 | 19 | [97] Hugo Dellien v Giulio Zeppieri [357] | 6-7,6-3,0-6 |