| Slovenia Int. | 2019/05/16 16:40 | Adrian Dziolko v Minoru Koga | W | 0-2 |
| Denmark Int. | 2019/05/10 16:30 | Minoru Koga v Sergey Sirant | L | 1-2 |
| Osaka International | 2019/04/04 01:20 | Pengbo Ren v Minoru Koga | L | 2-0 |
| Tong Yun Kai Cup | 2019/03/21 12:00 | Minoru Koga v Ka Long Angus Ng | L | 1-2 |
| Giraldilla International - Gemischtes Doppel | 2019/02/24 07:00 | Minoru Koga v Kodai Naraoka | L | 0-2 |
| Giraldilla International - Gemischtes Doppel | 2019/02/23 07:20 | Minoru Koga v Kantawat Leelavechabutr | W | 2-0 |
| Giraldilla International - Gemischtes Doppel | 2019/02/22 06:40 | Minoru Koga v Yee Han Chong | W | 2-1 |
| Giraldilla International - Gemischtes Doppel | 2019/02/21 06:10 | Minoru Koga v Phakorn Chotphinit | W | 2-0 |
| Slovenia Int. | 2019/05/17 08:30 | Harsheel Dani v Christo Popov | W | 1-2 |
| Slovenia International - Qualifikation | 2019/05/15 13:45 | Christo Popov v Ditlev Jaeger Holm | W | 2-0 |
| Slovenia International - Qualifikation | 2019/05/15 11:00 | Adi Pratama v Christo Popov | W | 0-2 |
| Slovenia International - Qualifikation | 2019/05/15 07:00 | Christo Popov v Runze Yan | W | 2-0 |
| Polish Open - Qualifikation | 2019/03/28 09:00 | Feixiang Sun v Christo Popov | L | 2-0 |
| Orleans Masters | 2019/03/19 20:00 | Christo Popov v Yu Hsien Lin | L | 1-2 |
| Orleans Masters - Qualifikation | 2019/03/19 14:35 | Christo Popov v Chirag Sen | W | 2-0 |
| Orleans Masters - Qualifikation | 2019/03/19 08:00 | Vladimir Nikulov v Christo Popov | W | 0-2 |