Stadium: Court 3 Round: 44 Ground: Clay
| UTR Pro Tennis Series Florida | 2021/06/13 13:30 | Micah Braswell v Tristan McCormick | 7-5,6-3 |
| UTR Pro Tennis Series Florida | 2021/06/12 13:30 | Tristan McCormick v Ivan Yatsuk | 4-6,6-4,7-6 |
| UTR Pro Tennis Series Florida | 2021/06/11 13:00 | Gavin Young v Tristan McCormick | 2-6,1-5 |
| UTR Pro Tennis Series Florida | 2021/06/08 18:30 | Jake Beasley v Tristan McCormick | 4-6,0-0 |
| UTR Pro Tennis Series Florida | 2021/06/07 17:30 | Tristan McCormick v Matthew Segura | 7-6,4-6,3-6 |
| UTR Pro Tennis Series Florida | 2020/12/17 00:00 | Tristan McCormick v Garrett Johns | 4-6,1-6 |
| UTR Pro Tennis Series Florida | 2020/12/15 14:00 | Tyler Zink v Tristan McCormick | 7-6,6-4 |
| UTR Pro Tennis Series Florida | 2020/12/14 16:00 | Cannon Kingsley v Tristan McCormick | 7-5,6-6 |
| ITF M15 Monastir | 2021/06/13 11:30 | Lucas Cotler v Dong Ju Kim | 2-6,2-6 |
| ITF M15 Monastir | 2021/06/07 08:00 | Lucas Cotler v Ren Nakamura | 2-6,3-6 |
| ITF M15 Monastir | 2021/06/06 09:00 | Mohamed Amine Aissa Khelifa v Lucas Cotler | 4-6,3-6 |
| ITF M15 Monastir | 2021/05/31 08:00 | Uisung Park v Lucas Cotler | 6-0,6-1 |
| ITF M15 Monastir | 2021/05/30 09:00 | Lucas Cotler v Skander Ben Fraj | 6-3,6-2 |
| ITF M15 Monastir | 2021/05/23 09:00 | Bruno Nhavene v Lucas Cotler | 6-1,6-2 |
| ITF M15 Cordoba | 2021/04/05 16:30 | Lucas Cotler v Felipe Derdoy | 2-6,1-6 |
| ITF M15 Villa Maria | 2021/03/28 16:00 | Lucas Cotler v Esteban Bruna | 3-6,3-6 |