Stadium: Court 4 Round: 45 Ground: Hardcourt outdoor
| Challenger Zhuhai Qual | 2018/03/03 06:55 | Slobodchikov, Ronald v Kim, Cheong-Eui | 6-4,7-6 |
| Yokohama, Japan, Qualifying | 2018/02/24 01:00 | Wishaya Trongcharoenchaikul v Kim, Cheong-Eui | 6-4,7-6 |
| Challenger Kyoto Qual | 2018/02/18 06:20 | Kim, Cheong-Eui v Blake Ellis | 3-6,6-4,6-7 |
| Challenger Kyoto Qual | 2018/02/17 06:55 | Kim, Cheong-Eui v Onozawa, Arata | 2-6,6-3,6-4 |
| ITF Turkey F5 | 2018/02/06 09:00 | Kim, Cheong-Eui v Cipolla, Flavio | 2-6,7-5,3-6 |
| ITF Turkey F4 | 2018/02/01 09:05 | Ji Hoon Son v Kim, Cheong-Eui | 6-4,6-4 |
| ITF Turkey F4 | 2018/01/30 09:05 | Suluoglu, Sefa v Kim, Cheong-Eui | 0-6,0-6 |
| ITF Turkey F3 | 2018/01/27 07:30 | Delic, Mate v Kim, Cheong-Eui | 6-4,5-7,6-1 |
| Challenger Zhuhai Qual | 2018/03/05 02:00 | Banes, Maverick v Granollers, Gerard | 6-3,6-2 |
| Challenger Zhuhai Qual | 2018/03/04 03:45 | Grills, Jacob v Granollers, Gerard | 2-6,6-4,2-6 |
| Challenger Zhuhai Qual | 2018/03/03 03:20 | Ruikai Wang v Granollers, Gerard | 5-7,4-6 |
| Challenger - Chennai | 2018/02/14 07:10 | Antoine Escoffier v Granollers, Gerard | 7-6,6-2 |
| Challenger - Chennai | 2018/02/12 04:30 | Mukund Sasikumar v Granollers, Gerard | 3-6,2-6 |
| Launceston, Australia | 2018/02/02 23:00 | Granollers, Gerard v Prashanth, N. Vijay Sundar | 6-3,2-6,3-6 |
| Challenger - Burnie | 2018/01/31 00:50 | Granollers, Marcel v Granollers, Gerard | 6-3,6-4 |
| Challenger - Burnie | 2018/01/29 06:00 | Granollers, Gerard v Petrovic, Danilo | 4-6,7-6,7-6 |