Ground: Hardcourt outdoor
| ITF Korea F1 | 2014/04/25 04:40 | Lim, Yong-Kyu v Niki, Takuto | 6-4,6-3 |
| ITF Japan F3 | 2015/03/26 01:00 | Hong, Seong Chan v Lim, Yong-Kyu | 2-6,6-4,4-6 |
| ITF Japan F3 | 2015/03/24 01:00 | Lim, Yong-Kyu v Moritani, Soichiro | 7-6,6-3 |
| Coupe Davis | 2014/09/12 03:00 | Hung, Jui-Chen v Lim, Yong-Kyu | 2-6,2-6,0-6 |
| ITF Korea F1 Qual | 2014/05/03 03:35 | Lim, Yong-Kyu v Propoggia, Dane | 3-6,6-1,1-6 |
| ITF Korea F1 Qual | 2014/05/01 05:10 | Lim, Yong-Kyu v Duckhee Lee | 6-3,6-4 |
| ITF Korea F1 Qual | 2014/04/30 03:50 | Lim, Yong-Kyu v Nguyen, Daniel | 4-6,6-4,6-2 |
| ITF Korea F1 | 2014/04/27 03:00 | Lim, Yong-Kyu v Neuchrist, Maximilian | 7-6,6-3 |
| ITF Korea F1 | 2014/04/26 03:00 | Lim, Yong-Kyu v Chung, Hyeon | 7-5,6-3 |
| ITF Japan F3 | 2015/03/26 03:45 | Ehara, Hiroyasu v Niki, Takuto | 6-4,3-6,3-6 |
| ITF Japan F3 | 2015/03/25 01:00 | Jeamoon Lee v Niki, Takuto | 1-6,1-6 |
| ITF Japan F2 | 2015/03/22 02:00 | Niki, Takuto v Shintaro Imai | 6-7,6-4,6-2 |
| ITF Japan F2 | 2015/03/21 03:20 | Niki, Takuto v Ehara, Hiroyasu | 6-3,6-7,6-2 |
| ITF Japan F2 | 2015/03/20 03:00 | Niki, Takuto v Sasai, Masaki | 7-5,6-3 |
| ITF Japan F2 | 2015/03/17 03:00 | Niki, Takuto v Pancaldi, Luca | 7-6,6-4 |
| ITF Japan F1 | 2015/03/14 02:00 | Niki, Takuto v Ito, Yuichi | 7-6,6-3 |
| ITF Japan F1 | 2015/03/13 01:00 | Niki, Takuto v Chaplin, Jarryd | 7-6,6-3 |