Round: 25 Ground: Hardcourt outdoor
| ITF USA F16 | 2018/06/24 14:30 | Markos Kalovelonis v Alex Rybakov | 1-6,6-7 |
| ITF USA F16 | 2018/06/23 14:30 | Gianni Ross v Markos Kalovelonis | 6-7,5-7 |
| ITF USA F16 | 2018/06/22 19:00 | Jordi Arconada v Markos Kalovelonis | 6-7,2-6 |
| ITF USA F16 | 2018/06/21 18:30 | Markos Kalovelonis v Cannon Kingsley | 6-3,6-1 |
| ITF USA F16 | 2018/06/20 17:30 | Markos Kalovelonis v Temur Ismailov | 7-6,6-1 |
| ITF USA F14 | 2018/06/16 16:00 | Deiton Baughman v Markos Kalovelonis | 6-1,6-3 |
| ITF USA F14 | 2018/06/15 21:00 | Eduardo Agustin Torre v Markos Kalovelonis | 3-6,3-6 |
| ITF USA F14 | 2018/06/14 15:00 | Markos Kalovelonis v Jenson Brooksby | 6-4,6-4 |