Stadium: Court 12 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Edwardsville | 2019/08/07 17:10 | Ross, Gianni v Alexander Klintcharov | 6-4,6-4 |
| ITF M25 Edwardsville | 2019/08/06 16:40 | Alexander Klintcharov v Sorbo, Jonathan | 7-6,6-3 |
| ITF M25 Decatur | 2019/07/30 18:15 | Perez, Alfredo v Alexander Klintcharov | 6-4,6-3 |
| ITF M25 Champaign | 2019/07/23 15:00 | Alexander Klintcharov v Trey Hilderbrand | 2-6,6-4,8-10 |
| Iowa City, Singles Qualifying M-ITF-USA-22A | 2019/07/16 16:55 | Alexander Klintcharov v Gomes, Gui | 6-3,6-7,4-10 |
| ITF M15 Norman | 2019/07/11 14:00 | Alexander Klintcharov v Mark Whitehouse | 6-3,4-6,3-6 |
| ITF M15 Norman | 2019/07/10 15:45 | Alexander Klintcharov v Chadwell, Ian | 6-4,2-6,6-1 |
| Nonthaburi, Singles M-ITF-THA-01A | 2019/05/30 08:00 | Alexander Klintcharov v Congsup Congcar | 1-6,5-7 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2019/08/12 05:50 | Vuradin, Lucas v Liu, Shao-Fan | 3-6,6-3,7-10 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2019/08/09 02:30 | Vuradin, Lucas v Kuan-Yi Lee | 2-6,7-5,2-6 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2019/08/08 04:40 | Luca Castelnuovo v Vuradin, Lucas | 3-6,4-6 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2019/08/07 04:15 | Vuradin, Lucas v Susanto, David Agung | 6-0,6-4 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2019/08/06 02:30 | Vuradin, Lucas v Anthony Susanto | 6-0,6-3 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2019/08/05 06:15 | Vuradin, Lucas v Jesse Delaney | 6-4,6-3 |
| Nonthaburi, Singles M-ITF-THA-01A | 2019/07/31 04:40 | Siddharth Vishwakarma v Vuradin, Lucas | 6-3,6-4 |
| Nonthaburi, Singles M-ITF-THA-01A | 2019/07/30 04:20 | Vuradin, Lucas v Abhinav Sanjeev Shanmugam | 6-4,6-1 |