| UTR Pro Charleston | 06/11 14:30 | - | Espin Busleiman, Geronimo v Peter Bertran | 3-6,6-7 | |
| UTR Pro Charleston | 06/10 17:22 | - | Espin Busleiman, Geronimo v Justin Lyons | 3-6,6-3,6-3 | |
| UTR Pro Charleston | 06/09 13:00 | - | Carson Baker v Espin Busleiman, Geronimo | 3-6,3-6 | |
| UTR Pro Charleston | 06/08 14:30 | - | Matthew Thomson v Espin Busleiman, Geronimo | 3-6,2-6 | |
| UTR Pro Charleston | 06/06 14:00 | - | Nathan Cox v Espin Busleiman, Geronimo | 6-4,1-6,2-6 | |
| UTR Pro Charleston | 06/05 14:00 | - | Espin Busleiman, Geronimo v Matthew Pitts | 6-1,5-3 | |
| UTR Pro Tennis Series Miami | 11/07 15:00 | - | Leote Prata, Martim v Espin Busleiman, Geronimo | 5-7,1-4 | |
| UTR Pro Tennis Series Miami | 11/06 23:30 | - | Kian Vakili v Espin Busleiman, Geronimo | 2-6,4-6 | |
| UTR Pro Tennis Series Miami | 11/06 19:30 | - | Jake Fellows v Espin Busleiman, Geronimo | 2-6,4-5 | |
| UTR Pro Tennis Series Miami | 11/04 20:00 | - | Henry Lieberman v Espin Busleiman, Geronimo | 6-3,6-1 | |
| UTR Pro Tennis Series Miami | 11/03 15:30 | - | Bowers, Tyler v Espin Busleiman, Geronimo | 2-6,1-5 | |
| UTR Pro Tennis Series Miami | 11/01 19:30 | - | Bastias, Francisco v Espin Busleiman, Geronimo | 2-6,6-2,6-4 | |
| ITF Turkey F39 | 12/05 06:30 | 25 | Espin Busleiman, Geronimo v Matyas Fuele | 4-6,6-3,3-6 | |
| ITF Turkey F38 | 12/02 06:00 | 28 | Espin Busleiman, Geronimo v Slobodchikov, Ronald | 2-6,1-6 | |
| ITF Turkey F38 | 12/01 07:15 | 27 | Dhoe, Benjamin v Espin Busleiman, Geronimo | 6-2,1-6,4-6 | |
| ITF Turkey F38 | 12/01 06:00 | 26 | Espin Busleiman, Geronimo v Apostol, Bogdan Ionut | 6-2,6-1 | |
| ITF Turkey F38 | 11/28 13:30 | 25 | Karlo Cubelic v Espin Busleiman, Geronimo | 6-4,3-6,0-6 | |
| ITF Turkey F37 | 11/20 07:00 | 25 | Espin Busleiman, Geronimo v Esteve Lobato, Eduard | 4-6,4-6 | |
| ITF Turkey F36 | 11/15 10:00 | 26 | Nik Razborsek v Espin Busleiman, Geronimo | 6-3,6-3 | |
| ITF Turkey F36 | 11/14 08:40 | 25 | Espin Busleiman, Geronimo v Vicentiu Andrei Niculescu | 6-3,6-2 | |
| ITF Argentina F6 | 09/19 15:05 | 26 | Estevez Maximiliano v Espin Busleiman, Geronimo | 6-2,4-6,6-2 | |
| ITF Argentina F6 | 09/17 19:05 | 25 | Espin Busleiman, Geronimo v Hernan Casanova | 3-6,6-3,6-4 | |
| ITF Argentina F5 | 09/11 17:40 | 25 | Espin Busleiman, Geronimo v Estevez Maximiliano | 5-7,2-6 | |
| ITF Argentina F4 | 09/06 15:00 | 27 | Espin Busleiman, Geronimo v Florez, Valentin | 6-7,4-6 | |
| ITF Argentina F4 | 09/05 18:30 | 26 | Espin Busleiman, Geronimo v Francisco Cerundolo | 0-6,7-6,6-4 | |
| ITF Argentina F4 | 09/04 18:40 | 25 | Espin Busleiman, Geronimo v Besada, Santiago | 6-2,6-0 | |
| ITF Italy F15 | 06/22 11:40 | 27 | Espin Busleiman, Geronimo v Capalbo, Franco | Walkover | |
| ITF Italy F15 | 06/21 10:45 | 26 | Juan Pablo Paz v Espin Busleiman, Geronimo | 6-4,2-6,2-6 | |
| ITF Italy F15 | 06/19 11:25 | 25 | Podzus, Janis v Espin Busleiman, Geronimo | Retired | |
| ITF Tunisia F23 | 06/12 10:40 | 25 | Ghilea, Vasile-Alexandru v Espin Busleiman, Geronimo | 6-1,6-4 |