Stadium: Court 6 S Round: 54 Ground: Hardcourt outdoor
| ITF - M25 Tulsa | 2021/06/15 15:55 | Ryan Shane v Joshua Ortlip | 5-7,6-4,10-5 |
| ITF - M25 Tulsa | 2021/06/14 18:00 | Nicholas Bybel v Joshua Ortlip | 3-6,3-6 |
| ITF - M25 Wichita | 2021/06/10 14:50 | Joshua Ortlip v Sho Shimabukuro | 6-3,3-6,3-6 |
| ITF - M25 Wichita | 2021/06/09 15:00 | Joshua Ortlip v Kento Takeuchi | 7-6,6-4 |
| UTR Pro Tennis Series - Kalifornia | 2021/05/29 15:00 | Joshua Ortlip v Nicolas Barrientos | 1-6,7-6,2-5 |
| UTR Pro Tennis Series - Kalifornia | 2021/05/28 15:00 | Aditya Gupta v Joshua Ortlip | 4-6,2-6 |
| UTR Pro Tennis Series - Kalifornia | 2021/05/26 16:30 | Joshua Ortlip v Spencer Johnson | 6-4,5-4 |
| UTR Pro Tennis Series - Kalifornia | 2021/05/25 18:45 | Joshua Ortlip v Alexander Stater | 6-2,6-4 |
| ITF - M25 Wichita | 2021/06/07 15:00 | Christian Lakoseljac v Nicholas Bybel | 5-7,5-7 |
| ITF - M15 East Lansing | 2019/11/20 22:10 | Michael Geerts v Christian Lakoseljac | 6-4,6-4 |
| ITF - M15 East Lansing | 2019/11/19 15:00 | David Fox v Christian Lakoseljac | 6-7,3-6 |
| ITF - M15 East Lansing | 2019/11/17 15:00 | Nils Ellefsen v Christian Lakoseljac | 6-7,4-6 |
| ITF - M15 Norman | 2019/07/11 16:40 | Christian Lakoseljac v Andrew Fenty | 1-6,6-2,6-7 |
| ITF - M15 Norman | 2019/07/09 15:00 | Alexander Brown v Christian Lakoseljac | 7-6,3-6,2-6 |
| ITF USA F23 Qual | 2018/08/11 15:00 | Alexander Lebedev v Christian Lakoseljac | 6-4,6-4 |
| ITF USA F16 | 2018/06/16 17:00 | Jordi Arconada v Christian Lakoseljac | 6-4,6-4 |