Stadium: Court 1 Round: 25 Ground: Clay
| ITF M25 Nonthaburi | 2019/07/31 06:20 | Marsel Ilhan v Daisuke Sumizawa | 6-4,6-2 |
| ITF M25 Nonthaburi | 2019/07/30 02:30 | Daisuke Sumizawa v Cameron Green | 6-4,5-7,10-8 |
| ITF M25 Nonthaburi | 2019/07/29 05:00 | Daisuke Sumizawa v Hao Yuan Ng | 2-6,6-3,10-6 |
| ITF M25 Nonthaburi | 2019/07/24 02:00 | Daisuke Sumizawa v Sergey Fomin | 3-6,1-6 |
| ITF M25 Nonthaburi | 2019/07/23 03:45 | Daisuke Sumizawa v Krittin Koaykul | 6-4,1-6,11-9 |
| ITF M25 Nonthaburi | 2019/07/22 08:50 | Daisuke Sumizawa v Saranpong Borisutpong | 6-2,6-4 |
| ITF M25 Qujing | 2019/07/11 03:20 | Rio Noguchi v Daisuke Sumizawa | 6-3,6-0 |
| ITF M25 Qujing | 2019/07/09 04:30 | Zhuoyang Qiu v Daisuke Sumizawa | 1-6,0-6 |
| Davis Cup | 2019/09/13 08:00 | Vladimir Ivanov v Robert Strombachs | 7-6,4-6,6-3 |
| Davis Cup | 2019/09/12 08:00 | Vladimir Ivanov v Rrezart Cungu | 6-1,6-3 |
| ITF M25 Irpin | 2019/08/27 07:30 | Jurgen Zopp v Vladimir Ivanov | 6-4,6-1 |
| ITF M15 Helsinki | 2019/08/23 10:40 | Vladimir Ivanov v Patrik Niklas-Salminen | 4-6,7-5,2-6 |
| ITF M15 Helsinki | 2019/08/22 10:00 | Vladimir Ivanov v Iiro Vasa | 6-3,6-3 |
| ITF M15 Helsinki | 2019/08/21 11:30 | Vladimir Ivanov v Gorazd Srbljak | 6-4,6-3 |
| ITF M15 Parnu | 2019/07/19 08:00 | Alexander Shevchenko v Vladimir Ivanov | 6-4,6-3 |
| ITF M15 Parnu | 2019/07/18 13:40 | Vladimir Ivanov v Denis Klok | 7-6,6-3 |