Stadium: Court 2 N Round: 25 Ground: Hardcourt outdoor
| ITF M25 Tulsa | 2021/06/16 17:10 | Strong Kirchheimer v Diego Hidalgo | 7-6,2-6,3-6 |
| Challenger Orlando | 2021/06/06 16:20 | Strong Kirchheimer v Nicolas Alvarez | 3-6,5-7 |
| Challenger Little Rock | 2021/05/31 15:00 | Stefan Kozlov v Strong Kirchheimer | 6-3,6-2 |
| Challenger Little Rock | 2021/05/30 19:40 | Strong Kirchheimer v Aleksandar Kovacevic | 6-4,6-7,7-6 |
| ITF M25 Pensacola | 2021/05/20 14:25 | Strong Kirchheimer v Nicolas Kicker | 6-4,5-7,2-6 |
| ITF M25 Pensacola | 2021/05/19 18:00 | Strong Kirchheimer v Ricardo Rodriguez-Pace | 6-4,6-3 |
| Challenger Tallahassee | 2021/04/19 16:45 | Alexander Ritschard v Strong Kirchheimer | 6-0,7-6 |
| Challenger Tallahassee | 2021/04/19 00:20 | Strong Kirchheimer v Denis Yevseyev | 6-4,4-6,6-4 |
| ITF M15 Champaign | 2021/06/22 15:00 | Connor Farren v Nicholas Bybel | 6-4,6-2 |
| ITF M15 Champaign | 2021/06/21 15:00 | Connor Farren v Joshua Sheehy | 6-3,6-4 |
| UTR Pro Tennis Series California | 2021/05/30 18:35 | Connor Farren v Alexander Stater | 7-5,6-4 |
| UTR Pro Tennis Series California | 2021/05/29 18:00 | Connor Farren v Ishaan Ravichander | 5-0 |
| UTR Pro Tennis Series California | 2021/05/27 16:30 | Connor Farren v Nicholas Heng | 6-2,5-4 |
| UTR Pro Tennis Series California | 2021/05/26 19:30 | Aditya Gupta v Connor Farren | 6-1,6-6 |
| UTR Pro Tennis Series California | 2021/05/25 15:00 | Matthew Tsolakyan v Connor Farren | 4-6,2-6 |
| UTR Pro Tennis Series California | 2021/05/24 16:30 | Connor Farren v Hiroki Sakagawa | 6-2,6-3 |