Stadium: Court 8 Round: 54 Ground: Clay
| ITF - M15 South Bend | 2022/06/20 13:00 | Christian Lakoseljac v Adam Walton | 3-6,2-6 |
| ITF - M25 Wichita | 2022/06/16 16:40 | Felix Corwin v Christian Lakoseljac | 6-0,6-4 |
| ITF - M25 Wichita | 2022/06/15 17:10 | Christian Lakoseljac v Sekou Bangoura | 6-4,7-6 |
| ITF - M15 Sunrise | 2022/04/11 15:00 | Alex Knaff v Christian Lakoseljac | 6-4,5-7,10-6 |
| ITF - M15 Poitiers | 2022/03/14 13:45 | Pierre Delage v Christian Lakoseljac | 6-0,6-2 |
| ITF - M15 Poitiers | 2022/03/13 17:30 | Julien De Cuyper v Christian Lakoseljac | 7-6,4-6,8-10 |
| ITF - M15 Creteil | 2022/03/08 11:50 | Christian Lakoseljac v Theo Papamalamis | 4-6,3-6 |
| ITF - M15 Creteil | 2022/03/07 11:00 | Leo Doukhan v Christian Lakoseljac | 1-6,2-6 |
| ITF - M15 South Bend | 2022/06/21 12:30 | Presley Thieneman v John Mercer | 6-3,6-4 |
| UTR Pro Tennis Series - Florida | 2021/12/15 15:30 | Matthew Segura v John Mercer | 6-1,6-3 |
| UTR Pro Tennis Series - Florida | 2021/12/13 17:00 | Shunsuke Mitsui v John Mercer | 6-1,6-0 |
| ITF - M15 East Lansing | 2021/11/16 15:00 | John Mercer v Nico Mostardi | 1-6,5-7 |
| ITF - M15 East Lansing | 2021/11/15 18:00 | Matthew Dellavedova v John Mercer | 6-7,2-6 |
| ITF M25 Fayetteville | 2019/10/22 14:45 | Murphy Cassone v John Mercer | 6-3,2-6,10-8 |
| ITF M25 Fayetteville | 2019/10/21 15:00 | John Mercer v Ian Chadwell | 6-4,6-4 |
| ITF - M15 Pittsburgh | 2019/07/01 14:00 | John Mercer v Andrew Zhang | 2-6,1-6 |