Stadium: Court 5 Round: 62 Ground: Clay
| ITF M15 Bad Waltersdorf | 2021/08/23 07:00 | Gonzalo Achondo v Philip Bachmaier | 0-6,3-6 |
| ITF M15 Warmbad-Villach | 2021/08/16 12:30 | Philip Bachmaier v Gonzalo Achondo | 6-1,6-3 |
| ITF M15 Warmbad-Villach | 2021/08/16 07:00 | Ivan Kazakov v Gonzalo Achondo | 6-3,0-6,8-10 |
| ITF M15 Xativa | 2021/08/02 07:00 | Francisco Andreu Garcia v Gonzalo Achondo | 6-3,6-1 |
| ITF USA F40 Qual | 2017/12/03 18:00 | Gonzalo Achondo v Mason Beiler | 3-6,0-6 |
| ITF USA F40 Qual | 2017/12/02 16:00 | Jack Vance v Gonzalo Achondo | 3-6,6-4,4-6 |
| ITF USA F39 Qual | 2016/11/26 18:00 | Noe Khlif v Gonzalo Achondo | 6-3,6-3 |
| ITF USA F32 Qual | 2016/10/17 17:25 | Julian Cash v Gonzalo Achondo | 6-1,6-2 |
| ITF M15 Monastir | 2021/08/22 07:30 | Lorenzo Gagliardo v Matas Vasiliauskas | 3-6,2-6 |
| ITF M15 Monastir | 2021/08/09 07:30 | Masamichi Imamura v Lorenzo Gagliardo | 6-3,6-2 |
| ITF M15 Monastir | 2021/08/08 07:30 | Lorenzo Gagliardo v Tobias Franco | 6-7,6-4,10-4 |
| ITF M15 Cairo | 2021/07/28 08:00 | Samuele Pieri v Lorenzo Gagliardo | 6-3,6-3 |
| ITF M15 Cairo | 2021/07/21 09:35 | Quentin Folliot v Lorenzo Gagliardo | 6-2,6-2 |
| ITF M15 Cairo | 2021/07/20 08:00 | Amr Asrawy v Lorenzo Gagliardo | 3-6,0-6 |
| ITF M15 Cairo | 2021/07/18 07:30 | Lorenzo Gagliardo v Sebastian Arcila | 2-6,6-2,10-8 |
| ITF Argentina F8 | 2018/11/06 17:00 | Lorenzo Gagliardo v Mariano Kestelboim | 3-6,2-6 |