Stadium: Court 1 Round: 45 Ground: Hardcourt outdoor
| ITF M25 - Edwardsville | 2023/07/26 14:00 | Aidan Mchugh v Mac Kiger | 6-4,6-4 |
| ITF M25 - Dallas | 2023/07/12 17:40 | Mac Kiger v Mitchell Krueger | 0-6,2-6 |
| ITF M25 - Tulsa | 2023/06/22 15:00 | Mac Kiger v Garrett Johns | 5-7,4-6 |
| ITF M25 - Tulsa | 2023/06/21 15:40 | Mac Kiger v Jonathan Sorbo | 6-4,6-3 |
| ITF M25 - Wichita | 2023/06/14 16:30 | Peter Bertran v Mac Kiger | 7-6,3-6,6-2 |
| ITF M25 - Wichita | 2023/06/13 17:00 | Mac Kiger v Jake Krug | 6-2,6-3 |
| Challenger Tallahassee | 2023/04/17 14:00 | Strong Kirchheimer v Mac Kiger | 6-3,4-6,6-2 |
| ITF M15 - Sunrise | 2023/04/11 21:00 | Mac Kiger v Kyle Kang | 3-6,1-6 |
| Challenger Grodzisk Mazowiecki | 2023/08/13 15:10 | Ji Sung Nam v Mats Rosenkranz | 2-6,3-6 |
| Challenger Meerbusch | 2023/08/08 09:00 | Orlando Luz v Ji Sung Nam | 4-6,6-4,6-4 |
| Challenger Meerbusch | 2023/08/07 14:35 | Aaron James Williams v Ji Sung Nam | 4-6,7-6,1-6 |
| Challenger Porto | 2023/07/30 13:05 | Ji Sung Nam v Jaime Faria | 4-6,4-6 |
| Challenger Pozoblanco | 2023/07/16 17:00 | Ji Sung Nam v Fajing Sun | 6-7,1-6 |
| Challenger Bloomfield Hills | 2023/07/03 14:30 | Evan Zhu v Ji Sung Nam | 6-1,6-4 |
| Challenger Cali | 2023/06/18 19:15 | Frazier Rengifo v Ji Sung Nam | 6-4,6-2 |
| Challenger Palmas del Mar | 2023/06/11 17:15 | Ji Sung Nam v Gustavo Heide | 4-6,4-6 |