Stadium: Court 6 Round: 26 Ground: Hardcourt outdoor
| ITF M15 Antalya | 2021/05/06 07:00 | Alexander Erler v Cheong-Eui Kim | 6-4,3-6,6-3 |
| ITF M15 Antalya | 2021/05/05 10:10 | Mathys Erhard v Cheong-Eui Kim | 4-6,6-2,4-6 |
| ITF M15 Antalya | 2021/05/04 07:00 | Dragos Nicolae Madaras v Cheong-Eui Kim | 6-4,4-6,8-10 |
| ITF M15 Antalya | 2021/05/03 07:00 | Valentin Vanta v Cheong-Eui Kim | 7-5,4-6,4-10 |
| ITF M15 Antalya | 2021/05/02 06:00 | Zura Tkemaladze v Cheong-Eui Kim | 7-6,5-7,12-14 |
| ITF M15 Antalya | 2021/04/25 07:00 | Francesco Maestrelli v Cheong-Eui Kim | 6-2,7-6 |
| ITF M15 Antalya | 2021/04/19 07:00 | Daniel Siniakov v Cheong-Eui Kim | 6-4,3-6,11-9 |
| ITF M15 Antalya | 2021/04/16 10:00 | Cheong-Eui Kim v Nicolae Frunza | 0-6,2-6 |
| Challenger Charlottesville | 2021/10/31 18:00 | Malek Jaziri v Dayne Kelly | 6-1,4-6,6-1 |
| Challenger Las Vegas | 2021/10/27 18:00 | Dayne Kelly v Mikael Torpegaard | 2-6,3-6 |
| Challenger Las Vegas | 2021/10/26 18:00 | Dayne Kelly v Christopher Bulus | 6-3,6-2 |
| Challenger Las Vegas | 2021/10/25 18:00 | Dayne Kelly v Aidan Mchugh | 6-4,6-3 |
| Challenger Las Vegas | 2021/10/24 19:10 | Malek Jaziri v Dayne Kelly | 1-6,2-6 |
| Challenger Columbus | 2021/09/22 14:00 | Nicolas Mejia v Dayne Kelly | 6-4,0-6,6-2 |
| Challenger Cary | 2021/09/15 18:35 | Mitchell Krueger v Dayne Kelly | 6-4,6-4 |
| Challenger Cary | 2021/09/13 18:10 | Nicolas Mejia v Dayne Kelly | 4-6,4-6 |