| UTR Pro Tennis Series Atlanta | 2021/12/07 20:55 | Jake Krug v Juan Pablo Cenoz | 6-2,2-6,6-1 |
| UTR Pro Tennis Series Atlanta | 2021/12/07 15:35 | Jake Krug v Luke Bracks | 3-6,6-4,2-6 |
| ITF M15 Naples | 2021/10/05 13:30 | Jake Krug v Nikolay Sysoev | 6-4,2-6,6-10 |
| ITF M15 Naples | 2021/10/04 14:00 | Benjamin Niv v Jake Krug | 4-6,5-7 |
| UTR Pro Tennis Series Dallas | 2021/08/03 17:30 | Jake Krug v Ryan Ybarra | 6-2,6-7,5-3 |
| UTR Pro Tennis Series Dallas | 2021/08/02 16:30 | Jake Krug v Matt Kuhar | 2-6,0-5 |
| UTR Pro Tennis Series Atlanta | 2021/07/08 14:30 | Alan Sau Franco v Jake Krug | 6-4,5-2 |
| UTR Pro Tennis Series Atlanta | 2021/07/07 13:00 | Maxwell Benson v Jake Krug | 6-4,6-1 |
| UTR Pro Tennis Series Atlanta | 2021/12/07 18:30 | Luke Bracks v Raphael Lambling | 1-6,6-3,1-6 |
| ITF M15 Castelo Branco | 2021/07/29 12:05 | Raphael Lambling v Luca Giacomini | 2-6,4-6 |
| ITF M15 Castelo Branco | 2021/07/28 17:15 | Raphael Lambling v Natan Rodrigues | 6-2,6-3 |
| ITF M15 Castelo Branco | 2021/07/27 08:30 | Sahar Simon v Raphael Lambling | 3-6,6-3,9-11 |
| ITF M15 Castelo Branco | 2021/07/26 11:00 | Afonso Portugal v Raphael Lambling | 3-6,1-6 |
| ITF M25 Idanha-A-Nova | 2021/07/20 08:00 | Garrett Johns v Raphael Lambling | 7-6,2-6,10-3 |
| ITF M25 Idanha-A-Nova | 2021/07/19 08:00 | Raphael Lambling v Fabio Coelho | 6-4,6-2 |
| ITF M25 Idanha-A-Nova | 2021/07/18 10:30 | Raphael Lambling v Osgar O'Hoisin | 1-6,6-3,10-7 |