Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Gimcheon | 2019/06/19 06:10 | Minjong Park v Dong Ju Kim | 6-4,6-0 |
| ITF M15 Gimcheon | 2019/06/10 01:00 | Dong Ju Kim v Sung Jun Park | 3-6,4-6 |
| ITF M15 Daegu | 2019/06/06 03:25 | Seong Chan Hong v Dong Ju Kim | 6-3,6-2 |
| ITF M15 Daegu | 2019/06/04 05:05 | TaeWoo Koo v Dong Ju Kim | 2-6,1-6 |
| Challenger Seoul | 2019/04/29 06:15 | Dong Ju Kim v Jeamoon Lee | 2-6,2-6 |
| ITF Korea F5 | 2018/08/20 01:00 | Seoung Hun Lee v Dong Ju Kim | 6-1,6-1 |
| ITF Korea F5 | 2018/08/19 02:00 | Woobin Shin v Dong Ju Kim | 1-6,1-6 |
| ITF Korea F3 Qual | 2018/06/16 02:00 | Ilsang Yoon v Dong Ju Kim | 6-2,6-2 |
| ITF M25 Trento | 2020/02/26 12:50 | Mattia Frinzi v Mick Veldheer | 1-6,4-6 |
| ITF M25 Trento | 2020/02/24 11:20 | Mattia Frinzi v Maris Sipkovs | 6-0,6-0 |
| ITF M15 Monastir | 2019/11/30 09:00 | Mattia Frinzi v Jan Satral | 6-7,3-6 |
| ITF M15 Monastir | 2019/11/29 08:30 | Kai Wehnelt v Mattia Frinzi | 3-6,5-7 |
| ITF M15 Monastir | 2019/11/28 10:20 | Gauthier Onclin v Mattia Frinzi | 2-6,3-6 |
| ITF M15 Monastir | 2019/11/27 10:35 | Mattia Frinzi v Francesco Forti | 6-4,6-2 |
| ITF M15 Monastir | 2019/11/25 13:00 | Guillaume Dermiens v Mattia Frinzi | 6-7,1-6 |
| ITF M15 Monastir | 2019/11/25 08:00 | Mohamed Anouar Braham v Mattia Frinzi | 2-6,1-6 |