| Date | Category | Player | Score | Opponent | Tournament |
|---|---|---|---|---|---|
| 2019-07-07 | 12 | Daimu Izumi | 6-3 7-6(6) | Akihiro Toyoda | OP RAGUSE |
| 2019-07-06 | 12 | Daimu Izumi | 6-1 6-1 | Frano Sučić | OP RAGUSE |
| 2019-07-06 | 12 | Daimu Izumi | 6-1 6-1 | Lovre Bajo | OP RAGUSE |
| 2019-07-06 | 12 | Izumi/Kralj | 6-2 6-4 | Miyoshi/Primorac | OP RAGUSE |