Stadium: Court 2 Round: 26 Ground: Hardcourt outdoor
| ITF M25 Idanha-A-Nova | 2021/07/13 14:15 | Niki, Takuto v Rodrigues, Natan | 6-2,6-2 |
| ITF M15 Almada | 2021/07/08 11:15 | Diego F Flores v Niki, Takuto | 6-7,6-3,6-4 |
| ITF M15 Almada | 2021/07/07 08:30 | David Jorda Sanchis v Niki, Takuto | 2-6,2-6 |
| ITF - M15 Héraklion | 2021/06/09 11:10 | Cash, Julian v Niki, Takuto | 6-1,1-6,6-3 |
| ITF - M15 Héraklion | 2021/06/02 10:15 | Niki, Takuto v Zhang, Ze | 2-6,3-6 |
| ITF - M15 Héraklion | 2021/05/26 10:40 | Niki, Takuto v Federico Arnaboldi | 3-6,4-6 |
| ITF - M15 Héraklion | 2021/05/20 06:30 | Niki, Takuto v Zhang, Ze | 5-7,3-6 |
| ITF - M15 Héraklion | 2021/05/19 09:45 | Niki, Takuto v Mark Whitehouse | 6-3,6-3 |
| ITF M25 Idanha-A-Nova | 2021/07/14 09:50 | Pedro Araujo v Khan, Zane | 0-6,2-6 |
| Little Rock, USA | 2021/05/31 16:35 | Khan, Zane v Mitchell Krueger | 2-6,4-6 |
| ITF - M15 Tbilisi | 2021/05/21 06:00 | Khan, Zane v Yanki Erel | 2-6,4-6 |
| ITF - M15 Tbilisi | 2021/05/20 07:55 | Khan, Zane v Cash, Julian | 7-6,6-4 |
| ITF - M15 Tbilisi | 2021/05/19 08:35 | Khan, Zane v Cozbinov, Alexander | 3-6,6-4,6-0 |
| ITF M15 Jerusalem | 2021/05/16 06:55 | Edan Leshem v Khan, Zane | 3-6,4-6 |
| ITF M15 Jerusalem | 2021/05/14 07:30 | Khan, Zane v Marek Gengel | 7-5,7-6 |
| ITF M15 Jerusalem | 2021/05/13 08:30 | Khan, Zane v Cash, Julian | 7-6,6-4 |