| Challenger Columbus | 09/18 20:55 | 19 | [402] Strong Kirchheimer v Alfredo Perez [496] | 6-4,6-3 | |
| Challenger Columbus | 09/18 01:15 | 14 | Strong Kirchheimer v Kiranpal Pannu | 6-2,6-1 | |
| Challenger Cary | 09/13 23:20 | 26 | [426] Strong Kirchheimer v Alex Michelsen [117] | 3-6,1-6 | |
| Challenger Cary | 09/12 19:35 | 25 | [280] Tristan Schoolkate v Strong Kirchheimer [426] | 7-6,3-6,6-7 | |
| Challenger Cary | 09/11 17:00 | 19 | Strong Kirchheimer v Alex Rybakov | 6-7,7-5,7-6 | |
| Challenger Cary | 09/10 17:25 | 14 | [433] Strong Kirchheimer v Connor Thomson [355] | 7-6,6-3 | |
| ATP Winston-Salem | 08/22 19:20 | 25 | [78] Dominik Koepfer v Strong Kirchheimer [416] | 6-3,6-2 | |
| ATP Winston-Salem | 08/20 17:00 | 19 | Strong Kirchheimer v Darian King | 6-2,4-6,6-7 | |
| ATP Winston-Salem | 08/19 16:25 | 14 | [206] Adam Walton v Strong Kirchheimer [427] | 5-7,3-6 | |
| Challenger Winnipeg | 08/15 20:50 | 25 | [427] Strong Kirchheimer v Liam Broady [117] | 3-6,3-6 | |
| Challenger Winnipeg | 08/14 18:20 | 19 | [427] Strong Kirchheimer v Alafia Ayeni [498] | 7-5,6-2 | |
| Challenger Winnipeg | 08/13 18:45 | 14 | [422] Strong Kirchheimer v Juan Carlos Aguilar [379] | 1-6,6-4,6-4 | |
| Challenger Cary | 08/06 14:00 | 14 | Strong Kirchheimer v Quinn Vandecasteele | 7-5,3-6,2-6 | |
| Challenger Lexington | 08/03 01:00 | 26 | [218] Tennys Sandgren v Strong Kirchheimer [408] | 6-2,6-4 | |
| Challenger Lexington | 07/31 20:00 | 25 | [408] Strong Kirchheimer v Martin Damm [425] | 6-7,7-6,7-6 | |
| Challenger Granby | 07/16 15:00 | 14 | [387] Strong Kirchheimer v James Trotter [478] | 6-7,4-6 | |
| Challenger Chicago | 07/09 19:05 | 14 | [387] Strong Kirchheimer v Colin Sinclair [381] | 6-7,4-6 | |
| Challenger Bloomfield Hills | 07/03 16:25 | 14 | [313] Yunseong Chung v Strong Kirchheimer [387] | 6-4,7-6 | |
| ITF M15 South Bend | 06/25 15:00 | 29 | Strong Kirchheimer v James Tracy | 1-6,2-6 | |
| ITF M15 South Bend | 06/24 14:55 | 28 | Strong Kirchheimer v Blaise Bicknell | 7-5,7-6 | |
| ITF M15 South Bend | 06/23 18:10 | 27 | Strong Kirchheimer v Colton Smith | 3-6,7-6,6-3 | |
| ITF M15 South Bend | 06/22 17:35 | 26 | Strong Kirchheimer v Karlis Ozolins | 6-7,7-6,6-4 | |
| ITF M15 South Bend | 06/21 16:30 | 25 | Strong Kirchheimer v Jacob Bickersteth | 6-2,6-2 | |
| Challenger Palmas del Mar | 06/12 16:35 | 19 | [378] Bernard Tomic v Strong Kirchheimer [391] | 7-5,3-6,6-3 | |
| Challenger Palmas del Mar | 06/11 20:05 | 14 | Gage Brymer v Strong Kirchheimer | 4-6,4-6 | |
| Challenger Little Rock | 05/28 17:35 | 14 | Colin Markes v Strong Kirchheimer | 5-7,7-6,7-6 | |
| Challenger Savannah | 04/24 22:10 | 25 | [391] Strong Kirchheimer v Nicolas Kicker [210] | 1-6,1-6 | |
| Challenger Tallahassee | 04/18 19:55 | 25 | [395] Strong Kirchheimer v Mitchell Krueger [270] | 7-6,2-6,3-6 | |
| Challenger Tallahassee | 04/17 20:00 | 19 | Strong Kirchheimer v Ryan Harrison | Retired | |
| Challenger Tallahassee | 04/17 14:00 | 14 | Strong Kirchheimer v Mac Kiger | 6-3,4-6,6-2 |