| UTR Pro Atlanta | 04/15 19:00 | - | Eli Stephenson v Villarruel, Santiago | 6-1,6-3 | |
| UTR Pro Atlanta | 04/15 01:00 | - | Villarruel, Santiago v Suresh, Dhakshineswar | 2-6,1-6 | |
| UTR Pro Atlanta | 04/12 18:00 | - | Villarruel, Santiago v Pane, Lautaro | 3-6,6-7 | |
| UTR Pro Atlanta | 04/11 22:15 | - | Villarruel, Santiago v Winter, Edward | 0-6,3-6 | |
| UTR Pro Atlanta | 04/10 23:31 | - | Samuel Reeve v Villarruel, Santiago | 2-6,2-5 | |
| ITF Bolivia F3 | 10/03 23:25 | 25 | Villarruel, Santiago v 아레체, 니콜라스 알베르토 | 7-5,2-6,4-6 | |
| ITF Bolivia F3 Qual | 10/02 20:00 | 62 | Villarruel, Santiago v 리베이로, 에듀알도 | 7-6,4-6,6-2 | |
| ITF Bolivia F3 Qual | 10/01 18:35 | 62 | Villarruel, Santiago v 비안치, 니콜라스 | 6-0,7-5 | |
| ITF Bolivia F3 Qual | 09/30 13:30 | 62 | Villarruel, Santiago v 브루나, 니콜라스 | 6-2,3-6,6-4 | |
| ITF Bolivia F2 Qual | 09/23 13:30 | 62 | Villarruel, Santiago v Valero, Luis | 1-6,5-7 | |
| ITF Bolivia F1 | 09/18 17:40 | 25 | Villarruel, Santiago v 아레체, 니콜라스 알베르토 | 6-3,2-6,3-6 | |
| Tunisia F19, Singles Qualifying | 05/15 11:30 | 44 | Villarruel, Santiago v 브로빌, 맥센스 | 3-6,1-6 | |
| Tunisia F19, Singles Qualifying | 05/14 09:00 | 44 | Villarruel, Santiago v 파타르, 아나스 | 1-6,6-3,6-3 | |
| Tunisia F18, Singles Qualifying | 05/11 13:20 | 26 | Linzer, Michael v Villarruel, Santiago | 6-2,6-3 | |
| Tunisia F18, Singles Qualifying | 05/09 10:25 | 25 | Villarruel, Santiago v Allemby, James | 2-6,6-1,6-2 | |
| Tunisia F18, Singles Qualifying | 05/08 09:00 | 62 | Villarruel, Santiago v 데르도이, 펠리프 | 7-5,6-2 | |
| Tunisia F18, Singles Qualifying | 05/07 11:00 | 62 | Villarruel, Santiago v Mercuri, Fabio | 3-6,6-4,6-4 | |
| ITF Tunisia F8 | 02/26 10:00 | 62 | Semmler, Miguel v Villarruel, Santiago | 6-1,6-1 | |
| ITF Tunisia F8 | 02/25 08:00 | 62 | Villarruel, Santiago v Mercuri, Fabio | 7-6,6-2 | |
| ITF Tunisia F7 | 02/20 08:30 | 62 | Carli, Cristian v Villarruel, Santiago | 6-1,6-3 | |
| ITF Tunisia F7 | 02/19 12:30 | 62 | Villarruel, Santiago v Tinelli, Matteo | 6-1,6-1 | |
| Tunisia F6, Singles Qualifying | 02/12 08:00 | 62 | 베네데티, 지울리아노 v Villarruel, Santiago | 4-6,6-3,6-2 | |
| Tunisia F6, Singles Qualifying | 02/11 08:00 | 62 | Banov, Danail v Villarruel, Santiago | 3-6,0-6 | |
| ITF Tunisia F5 | 02/06 08:00 | 62 | Villarruel, Santiago v 베레티니, 야코포 | 4-6,2-6 | |
| ITF Tunisia F5 | 02/05 10:00 | 62 | Villarruel, Santiago v 트레스카, 지우세프 | 7-5,6-1 | |
| ITF Tunisia F5 | 02/04 12:00 | 62 | Villarruel, Santiago v Kumar, Anupam | 6-1,6-1 | |
| ITF Tunisia F33 | 11/23 11:00 | 25 | 마르토스 고르네스, 세르지오 v Villarruel, Santiago | 6-1,6-1 | |
| ITF Tunisia F32 | 11/15 08:30 | 25 | Villarruel, Santiago v 올리베이라, 곤칼로 | 4-6,7-5,6-7 | |
| ITF Tunisia F32 | 11/14 08:30 | 44 | Villarruel, Santiago v Preka, Roberto | 6-1,6-2 | |
| ITF Tunisia F32 | 11/13 08:30 | 44 | Villarruel, Santiago v Soares Valinho, Johann | 6-1,6-1 |