Stadium: Court 5 Round: 26 Ground: Hardcourt outdoor
| ITF - M15 Tbilisi | 2021/05/18 07:00 | Aidan Mayo v Saba Purtseladze | 6-2,6-4 |
| ITF - M15 Jerusalem | 2021/05/13 10:15 | Aidan Mayo v Ben Patael | 4-6,3-6 |
| ITF - M15 Jerusalem | 2021/05/12 08:40 | Kelsey Stevenson v Aidan Mayo | 4-6,0-6 |
| ITF - M15 Ramat Hasharon | 2021/05/05 13:05 | Filip Bergevi v Aidan Mayo | 6-3,6-7,7-6 |
| UTR Pro Tennis Series - California | 2021/02/21 18:00 | Kyle Kang v Aidan Mayo | 3-6,6-2,6-4 |
| UTR Pro Tennis Series - California | 2021/02/20 20:30 | Colton Smith v Aidan Mayo | 6-1,6-7,3-6 |
| UTR Pro Tennis Series - California | 2021/02/19 21:30 | Connor Farren v Aidan Mayo | 3-6,6-4,6-6 |
| UTR Pro Tennis Series - California | 2021/02/18 17:30 | Keenan Mayo v Aidan Mayo | 7-5,3-6,5-7 |
| ITF - M15 Tbilisi | 2021/05/18 07:00 | Marat Deviatiarov v Marek Gengel | 1-6,4-6 |
| ITF - M15 Jerusalem | 2021/05/14 07:30 | Zane Khan v Marek Gengel | 7-5,7-6 |
| ITF - M15 Jerusalem | 2021/05/13 10:35 | Alexandros Skorilas v Marek Gengel | 2-6,1-6 |
| ITF - M15 Jerusalem | 2021/05/12 10:00 | Lorenzo Lorusso v Marek Gengel | 6-7,4-6 |
| Challenger Salinas 2 | 2021/04/27 17:20 | Hernan Casanova v Marek Gengel | 3-6,6-4,7-5 |
| Challenger Salinas 2 | 2021/04/26 21:00 | Gage Brymer v Marek Gengel | 4-6,7-5,2-6 |
| Challenger - Salinas | 2021/04/20 14:30 | Marek Gengel v Tak Khunn Wang | 2-6,3-6 |
| Challenger - Salinas | 2021/04/19 16:55 | Marek Gengel v Mathieu Perchicot | 6-3,3-6,7-5 |