Stadium: Court 7 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Meitar | 2021/11/03 09:55 | Arnaud Bovy v Yunseong Chung | 6-4,3-6,6-4 |
| ITF M25 Meitar | 2021/11/02 08:00 | Joshua Luck v Yunseong Chung | 3-6,1-6 |
| Challenger Columbus | 2021/09/21 14:00 | Yunseong Chung v Ji Sung Nam | 6-3,4-6,6-7 |
| Challenger Columbus | 2021/09/20 14:00 | Alexis Galarneau v Yunseong Chung | 4-6,4-6 |
| Challenger Columbus | 2021/09/19 18:35 | Justin Boulais v Yunseong Chung | 6-7,3-6 |
| ATP Winston-Salem | 2021/08/21 20:10 | Yunseong Chung v Yosuke Watanuki | 3-6,6-7 |
| ITF M25 Decatur | 2021/08/06 17:10 | Yunseong Chung v Eliot Spizzirri | 4-6,4-6 |
| ITF M25 Decatur | 2021/08/05 17:55 | Jumpei Yamasaki v Yunseong Chung | 2-6,2-6 |
| ITF M25 Monastir | 2022/01/11 09:15 | Mhamed Affes v Skander Mezouar | 3-6,2-6 |
| ITF M15 Monastir | 2021/12/05 09:00 | Gabriele Pennaforti v Skander Mezouar | 6-2,6-3 |