Stadium: Center Court Round: 25 Ground: Hardcourt outdoor
| Challenger Lexington | 2018/08/04 19:50 | Yunseong Chung v Stefano Napolitano | 5-7,3-6 |
| Challenger Lexington | 2018/08/02 14:00 | Wolf, Jeffrey John v Yunseong Chung | 3-6,7-6,5-7 |
| Challenger Lexington | 2018/08/01 01:15 | Yunseong Chung v Bushamuka, William | 6-2,6-3 |
| Binghamton, USA | 2018/07/25 14:30 | Jay Clarke v Yunseong Chung | 6-1,7-6 |
| Gatineau, Canada | 2018/07/18 17:20 | Klahn, Bradley v Yunseong Chung | 7-5,6-4 |
| Gatineau, Canada | 2018/07/17 20:55 | Yunseong Chung v Mitchell Krueger | 7-6,6-4 |
| Challenger Gatineau Qual | 2018/07/16 16:30 | Boulais, Justin v Yunseong Chung | 2-6,1-6 |
| Challenger Gatineau Qual | 2018/07/15 18:50 | Gomez, Alejandro v Yunseong Chung | 3-6,6-7 |
| Jinan, China | 2018/08/05 03:45 | Niesten, Miliaan v Benjamin Lock | 6-4,6-3 |
| Challenger Chengdu Qual | 2018/07/28 05:10 | Mladenov, Vasko v Benjamin Lock | 6-4,6-4 |
| ITF Chinese Taipei F2 | 2018/07/27 02:00 | Yu Hsiou Hsu v Benjamin Lock | 6-3,7-6 |
| ITF Chinese Taipei F2 | 2018/07/26 02:45 | Ray Ho v Benjamin Lock | 6-7,3-6 |
| ITF Chinese Taipei F2 | 2018/07/25 02:00 | Sumit Sarkar v Benjamin Lock | 3-6,3-6 |
| ITF France F13 | 2018/07/10 09:45 | Benjamin Lock v Pontico, Hugo | 1-6,4-6 |
| ITF Portugal F10 | 2018/06/29 10:00 | Benjamin Lock v Tchoutakian, Maxime | 2-6,1-6 |
| ITF Portugal F10 | 2018/06/28 10:30 | Benjamin Lock v Pedro Araujo | 6-2,6-2 |