| ITF Bolivia F2 | 09/17 19:30 | 25 | Sergio Luis H Ramirez v Franco Capalbo | 1-6,7-6,5-7 | |
| ITF Bolivia F1 | 09/11 19:30 | 25 | Sergio Luis H Ramirez v Jose Pereira | 3-6,6-2,4-6 | |
| ITF USA F23 Qual | 08/12 14:00 | 62 | Sergio Luis H Ramirez v Drew Van Orderlain | 1-6,5-7 | |
| ITF USA F22 Qual | 08/06 13:30 | 62 | Trent Bryde v Sergio Luis H Ramirez | Retired | |
| ITF USA F22 Qual | 08/04 13:30 | 62 | Joaquin Marquez v Sergio Luis H Ramirez | 1-6,3-6 | |
| ITF Ecuador F1 | 07/25 19:30 | 26 | Facundo Juarez v Sergio Luis H Ramirez | 2-6,6-4,7-6 | |
| ITF Ecuador F1 | 07/24 17:20 | 25 | Alejandro Mendoza v Sergio Luis H Ramirez | 2-6,2-6 | |
| ITF Brazil F2 | 04/29 15:00 | 44 | Sergio Luis H Ramirez v Mateus Alves | 3-6,0-6 | |
| ITF Brazil F1 | 04/24 23:15 | 25 | Marcelo Zormann v Sergio Luis H Ramirez | 7-6,6-1 | |
| ITF Turkey F7 | 02/18 06:30 | 62 | Collin Altamirano v Sergio Luis H Ramirez | 6-2,6-0 | |
| ITF Turkey F6 | 02/10 09:00 | 62 | Georgii Kravchenko v Sergio Luis H Ramirez | 6-3,6-4 | |
| ITF Turkey F5 | 02/05 07:30 | 44 | Sergio Luis H Ramirez v Razvan M Codescu | 3-6,7-6,4-6 | |
| ITF Turkey F4 | 01/29 08:00 | 44 | Sergio Luis H Ramirez v Ji Hoon Son | 2-6,3-6 | |
| ITF Turkey F4 | 01/28 07:30 | 44 | Sergio Luis H Ramirez v Danil Spasibo | 6-1,6-0 | |
| ITF Mexico F8 | 12/06 15:00 | 26 | Luis Patino v Sergio Luis H Ramirez | 6-1,6-7,6-1 | |
| ITF Mexico F8 | 12/04 18:10 | 25 | Sergio Luis H Ramirez v Alexios Halebian | 6-0,7-5 | |
| ITF Mexico F7 | 11/28 19:30 | 25 | Gonzalo Escobar v Sergio Luis H Ramirez | 6-1,7-5 | |
| ITF Mexico F6 | 11/23 22:00 | 26 | Sergio Luis H Ramirez v Gonzalo Escobar | 3-6,3-6 | |
| ITF Mexico F6 | 11/21 23:05 | 25 | Sergio Luis H Ramirez v Eduardo Yahir Orozco Rangel | 6-1,6-1 | |
| ITF Mexico F6 | 11/21 21:00 | - | Sergio Luis H Ramirez v Eduardo Orozco | 6-1,5-1 | |
| ITF Mexico F6 | 11/19 16:30 | 62 | Sergio Luis H Ramirez v Carlos Ramirez Utermann | 6-4,1-6,7-5 | |
| ITF Mexico F5 | 11/16 00:10 | 26 | Connor Farren v Sergio Luis H Ramirez | 6-4,6-2 | |
| ITF Mexico F5 | 11/14 18:30 | 25 | Sergio Luis H Ramirez v Mick Lescure | 2-6,7-5,6-0 | |
| Challenger Cali 2 Qual | 10/14 21:35 | 46 | Daniel M. D L Nava v Sergio Luis H Ramirez | 6-1,6-1 | |
| Challenger Cali 2 Qual | 10/14 15:50 | 45 | Sergio Luis H Ramirez v Michael Quintero | Retired | |
| Challenger Floridablanca Qual | 08/05 22:40 | 46 | Sergio Luis H Ramirez v Camilo U Carabelli | 0-6,6-7 | |
| Challenger Floridablanca Qual | 08/05 19:20 | 45 | Juan P Rodas v Sergio Luis H Ramirez | 6-7,1-6 | |
| ITF Colombia F3 | 08/01 18:00 | 25 | Sergio Luis H Ramirez v David Souto | 1-6,4-6 | |
| ITF Colombia F2 | 07/26 16:40 | 26 | Sergio Luis H Ramirez v Juan Sebastian Gomez | 2-6,1-6 | |
| ITF Colombia F2 | 07/24 19:00 | 25 | Sergio Luis H Ramirez v Alexander Perez Cortez | 6-4,6-0 |