Stadium: Center Court (5) Round: 26 Ground: Clay
| Tabarka, Singles Qualifying M-ITF-TUN-41A | 2019/03/19 08:30 | Roncalli, Simone v Nikolas Sanchez Izquierdo | 3-6,2-6 |
| ITF M25 Casinalbo | 2021/07/05 13:00 | Nikolas Sanchez Izquierdo v Rondoni, Pietro | 6-3,6-4 |
| ITF M25 Bourg-en-Bresse | 2021/07/01 10:20 | Damien Wenger v Nikolas Sanchez Izquierdo | 6-3,6-2 |
| ITF M25 Bourg-en-Bresse | 2021/06/30 13:30 | Eysseric, Jonathan v Nikolas Sanchez Izquierdo | 2-6,7-5,1-6 |
| Milan, Italy | 2021/06/20 12:55 | Nikolas Sanchez Izquierdo v Orlando Luz | 3-6,7-5,2-6 |
| Challenger - Aix en Provence | 2021/06/15 08:30 | Nikolas Sanchez Izquierdo v Manuel Guinard | 6-3,3-6,4-6 |
| Challenger - Aix en Provence | 2021/06/14 10:05 | Nikolas Sanchez Izquierdo v Michael Geerts | 6-7,6-4,6-2 |
| Challenger - Aix en Provence | 2021/06/13 11:15 | Nikolas Sanchez Izquierdo v Matos, Rafael | 6-2,6-2 |
| Lyon, France | 2021/06/06 09:30 | Esteve Lobato, Eduard v Nikolas Sanchez Izquierdo | 6-4,6-0 |
| ITF M25 Casinalbo | 2021/07/06 07:45 | Marcello Serafini v Roncalli, Simone | 2-6,2-6 |
| ITF M15 Bergamo | 2021/06/22 11:45 | Roncalli, Simone v Remy Bertola | 4-6,6-3,8-10 |
| ITF M15 Bergamo | 2021/06/21 09:40 | Roncalli, Simone v Juan Bautista Otegui | 6-3,6-2 |
| ITF M15 Skopje | 2021/06/12 08:00 | Miljan Zekic v Roncalli, Simone | 6-2,7-5 |
| ITF M15 Skopje | 2021/06/11 10:30 | Martin Damm v Roncalli, Simone | 3-6,0-6 |
| ITF M15 Skopje | 2021/06/10 11:30 | Roncalli, Simone v Cungu, Rrezart | 6-0,6-3 |
| ITF M15 Skopje | 2021/06/09 12:30 | Roncalli, Simone v Jotovski, Tomislav | 6-0,6-3 |
| ITF M15 Skopje | 2021/06/01 11:00 | Roncalli, Simone v Nicholas David Ionel | 3-6,2-6 |