Stadium: Court 14 Round: 26
| ITF Women Gimcheon | 2017/06/13 01:00 | Seung-Yeon Hong v Yeong Won Jeong | 5-7,6-4,7-5 |
| ITF Women Gimcheon | 2018/08/15 03:00 | Seung-Yeon Hong v Ai Kamiyoshihara | 6-3,6-0 |
| ITF Women Tianjin Qual | 2018/07/08 03:10 | Beatrice Gumulya v Seung-Yeon Hong | 6-0,7-6 |
| ITF Women Naiman | 2018/07/04 04:10 | Meiling Wang v Seung-Yeon Hong | 6-4,6-0 |
| ITF Women Naiman | 2018/07/02 03:55 | Seung-Yeon Hong v Kwan Yau Ng | 6-3,7-5 |
| ITF Women Naiman Qual | 2018/07/01 04:05 | Jiaxi Lu v Seung-Yeon Hong | 5-7,6-4,1-6 |
| ITF Women Naiman Qual | 2018/06/30 02:00 | Xinlei Guan v Seung-Yeon Hong | 2-6,0-6 |
| ITF Women Daegu Qual | 2018/06/19 01:00 | Kotomi Takahata v Seung-Yeon Hong | 6-4,3-6,6-3 |
| ITF Women Incheon Qual | 2018/05/13 01:00 | Zhibek Kulambayeva v Seung-Yeon Hong | 6-3,6-4 |
| ITF Women Gimcheon | 2018/08/14 02:45 | Yuka Hosoki v Yeong Won Jeong | 2-6,0-6 |
| ITF Women Daegu | 2018/06/20 02:50 | Yeong Won Jeong v Ya-Hsuan Lee | 0-6,7-6,2-6 |
| ITF Women Daegu Qual | 2018/06/19 01:00 | Sung-Hee Han v Yeong Won Jeong | 3-6,4-6 |
| ITF Women Daegu Qual | 2018/06/18 02:00 | You-Na Sul v Yeong Won Jeong | 3-6,1-6 |
| ITF Women Gyeongsan | 2018/06/13 05:55 | Chisa Hosonuma v Yeong Won Jeong | 4-6,3-6 |
| ITF Women Gyeongsan Qual | 2018/06/12 01:00 | Yeong Won Jeong v Mami Hasegawa | 6-4,7-6 |
| ITF Women Gyeongsan Qual | 2018/06/11 02:00 | Yeong Won Jeong v Da Hye Kim | 6-1,7-6 |
| ITF Women Sangju Qual | 2018/06/04 01:00 | Yeong Won Jeong v Eri Shimizu | 5-7,4-6 |