Stadium: Court 1 Round: 26 Ground: Hardcourt outdoor
| ITF M25 Idanha-A-Nova | 2021/07/21 09:50 | Garrett Johns v Soares Klier, Gilbert | 5-7,1-6 |
| Sarajevo, Singles Main, M-ITF-BIH-05A | 2021/06/03 09:00 | Soares Klier, Gilbert v Matheus P De Almeida | 6-4,3-6,3-6 |
| Sarajevo, Singles Main, M-ITF-BIH-05A | 2021/06/02 09:00 | Soares Klier, Gilbert v Kristjan Tamm | 6-4,6-2 |
| ITF M25 Kiseljak | 2021/05/26 15:30 | Soares Klier, Gilbert v David Pichler | 4-6,3-6 |
| ITF M15 Brcko | 2021/05/21 09:00 | Soares Klier, Gilbert v Eric Vanshelboim | 6-2,4-6,0-6 |
| ITF M15 Prijedor | 2021/05/11 12:35 | Luca Giacomini v Soares Klier, Gilbert | 6-3,1-6,6-1 |
| ITF - M15 Monastir | 2021/04/30 08:25 | Yunseong Chung v Soares Klier, Gilbert | 6-2,3-6,6-1 |
| ITF - M15 Monastir | 2021/04/29 08:30 | Soares Klier, Gilbert v Zachary Svajda | 2-6,6-4,6-3 |
| ITF M25 Idanha-A-Nova | 2021/07/14 11:05 | Smith, Roy v Cacao, Tiago | 5-7,6-3,6-7 |
| ITF M15 Champaign | 2021/06/23 21:50 | Smith, Roy v Bellucci, Thomaz | 6-7,3-6 |
| ITF - M25 Santo Domingo | 2021/06/05 16:15 | Smith, Roy v Aidan Mchugh | 6-3,3-6,1-6 |
| ITF - M25 Santo Domingo | 2021/06/04 14:25 | Calvin Hemery v Smith, Roy | 4-6,2-6 |
| ITF - M25 Santo Domingo | 2021/06/03 16:45 | Smith, Roy v Yshai Oliel | 4-6,6-2,6-3 |
| ITF - M25 Santo Domingo | 2021/06/03 13:00 | Smith, Roy v Mora, Maxime | 6-0,6-0 |
| ITF - M15 Monastir | 2021/05/28 08:30 | Eliakim Coulibaly v Smith, Roy | 6-3,6-4 |
| ITF - M15 Monastir | 2021/05/27 13:15 | Arthur Bouquier v Smith, Roy | 2-6,6-7 |