Stadium: Court 6 Round: 62 Ground: Hardcourt outdoor
| ITF - M15 Monastir | 2021/05/02 09:00 | Kim, Dong Ju v Masamichi Imamura | 2-6,3-6 |
| Gimcheon, Singles M-ITF-KOR-03A | 2019/06/19 06:10 | Park, Minjong v Kim, Dong Ju | 6-4,6-0 |
| Gimcheon, Singles M-ITF-KOR-03A | 2019/06/10 01:00 | Kim, Dong Ju v Park, Sung Jun | 3-6,4-6 |
| ITF M15 Daegu | 2019/06/06 03:25 | Hong, Seong Chan v Kim, Dong Ju | 6-3,6-2 |
| ITF M15 Daegu | 2019/06/04 05:05 | Koo, Taewoo v Kim, Dong Ju | 2-6,1-6 |
| Challenger Seoul | 2019/04/29 06:15 | Kim, Dong Ju v Jeamoon Lee | 2-6,2-6 |
| ITF Korea F5 | 2018/08/20 01:00 | Lee, Seounghun v Kim, Dong Ju | 6-1,6-1 |
| ITF Korea F5 | 2018/08/19 02:00 | Woobin Shin v Kim, Dong Ju | 1-6,1-6 |
| ITF - M15 Monastir | 2021/05/09 10:00 | Marquiselli, Victorio v Constantin Bittoun Kouzmine | 3-6,5-7 |
| ITF - M15 Monastir | 2021/05/06 13:00 | Constantin Bittoun Kouzmine v Yusuke Takahashi | 2-6,1-6 |
| ITF - M15 Monastir | 2021/05/05 10:25 | Constantin Bittoun Kouzmine v Sibille, Imran | 6-2,6-1 |
| ITF - M15 Monastir | 2021/05/04 08:00 | Alessandro Pecci v Constantin Bittoun Kouzmine | 5-7,6-7 |
| ITF - M15 Monastir | 2021/05/03 13:00 | Francois Musitelli v Constantin Bittoun Kouzmine | 1-6,7-5,7-10 |
| ITF - M15 Monastir | 2021/04/28 11:25 | Constantin Bittoun Kouzmine v Arthur Bouquier | 2-6,3-6 |
| ITF - M15 Monastir | 2021/04/26 12:30 | Lorenzo Bresciani v Constantin Bittoun Kouzmine | 5-7,3-6 |
| ITF - M15 Monastir | 2021/04/26 08:00 | Daiki Yoshimura v Constantin Bittoun Kouzmine | 3-6,3-6 |