| Challenger - Gwangju | 04/16 04:20 | 25 | [258] Arthur Fery v Fajing Sun [436] | 6-4,3-6,6-3 | |
| Challenger - Gwangju | 04/15 04:00 | 19 | [441] Fajing Sun v Altug Celikbilek [409] | 4-6,7-5,6-4 | |
| Challenger - Gwangju | 04/14 01:30 | 14 | [340] Hiroki Moriya v Fajing Sun [441] | 3-6,1-6 | |
| Challenger - Busan | 04/08 02:15 | 19 | [440] Fajing Sun v Paul Jubb [423] | 3-6,5-7 | |
| Challenger - Busan | 04/07 06:20 | 14 | [336] Egor Gerasimov v Fajing Sun [440] | 5-7,2-6 | |
| ITF - M25 - Toulouse | 03/20 09:30 | 25 | Alexey Vatutin v Fajing Sun | 6-2,6-0 | |
| ITF - M25 - Créteil | 03/16 14:30 | 28 | Alexey Vatutin v Fajing Sun | 7-5,6-4 | |
| ITF - M25 - Créteil | 03/15 14:30 | 27 | Fajing Sun v Lucas Poullain | Walkover | |
| ITF - M25 - Créteil | 03/14 16:15 | 26 | Fajing Sun v Antoine Ghibaudo | 2-6,6-3,6-1 | |
| ITF - M25 - Créteil | 03/13 11:35 | 25 | Fajing Sun v Louis Larue | 6-1,6-3 | |
| ITF - M15 - Villena | 02/29 11:20 | 26 | Sergio Callejon Hernando v Fajing Sun | 4-6,7-6,6-1 | |
| ITF - M15 - Villena | 02/28 12:45 | 25 | Diego F Flores v Fajing Sun | Retired |
Sun Fajing (chinesisch 孙发京, Pinyin Sūn Fājīng; * 3. Oktober 1996 in Shanxi) ist ein chinesischer Tennisspieler.