| ITF USA F9 | 02/24 14:00 | 60 | Riffice, Sam v Ramirez Utermann, Carlos | 6-1,7-6 | |
| USA F7, Singles Qualifying | 02/10 16:30 | 60 | Ramirez Utermann, Carlos v Noah Schachter | 2-6,4-6 | |
| ITF USA F6 | 01/27 20:30 | 60 | Holt, Bradley v Ramirez Utermann, Carlos | 6-2,6-4 | |
| ITF USA F5 | 01/21 17:00 | 60 | Pla Malfeito, Jaume v Ramirez Utermann, Carlos | 6-0,6-4 | |
| ITF USA F4 | 01/15 15:00 | 60 | Nick Chappell v Ramirez Utermann, Carlos | 7-5,6-2 | |
| ITF USA F3 | 01/07 18:30 | 60 | Ramirez Utermann, Carlos v Colin Sinclair | 3-6,6-4,4-6 | |
| Challenger Monterrey Qual | 10/09 18:20 | 46 | Lizariturry, Juan v Ramirez Utermann, Carlos | 6-1,6-0 | |
| Challenger Barranquilla Qual | 09/04 18:35 | 46 | Gomez, Juan Sebastian v Ramirez Utermann, Carlos | 7-5,6-4 | |
| ITF USA F22 | 06/29 17:40 | 25 | Ramirez Utermann, Carlos v Strong Kirchheimer | 1-6,0-6 | |
| ITF USA F22 Qual | 06/27 14:00 | 62 | Ramirez Utermann, Carlos v Bradley, Julian | 5-7,6-2,1-6 | |
| ITF USA F22 Qual | 06/26 14:00 | 62 | Ramirez Utermann, Carlos v Alex Kobelt | 6-3,6-4 | |
| ITF USA F20 | 06/21 18:10 | 25 | Ramirez Utermann, Carlos v Vega, Quinton | 1-6,1-6 | |
| ITF USA F19 | 06/14 15:00 | 25 | Ramirez Utermann, Carlos v Benitez Chavarriaga, Juan Manuel | 2-6,0-6 | |
| ITF Mexico F5 | 05/31 19:00 | 25 | Ramirez Utermann, Carlos v Manuel Sanchez | 1-6,2-6 | |
| ITF Mexico F4 | 05/23 16:30 | 25 | Federico Zeballos v Ramirez Utermann, Carlos | 6-3,6-4 | |
| ITF Mexico F3 | 05/17 16:10 | 25 | Manuel Sanchez v Ramirez Utermann, Carlos | Retired | |
| ITF Mexico F2 | 05/11 16:00 | 25 | Darian King v Ramirez Utermann, Carlos | 6-7,6-1,6-1 | |
| ITF Mexico F1 | 05/05 21:35 | 26 | Ramirez Utermann, Carlos v Bambridge, Luke | 3-6,4-6 | |
| ITF Mexico F1 | 05/03 17:10 | 25 | Ramirez Utermann, Carlos v Aramburu Contreras, Ivar Jose | 6-4,6-4 | |
| Challenger Leon Qual | 03/27 17:40 | 45 | Londero, Juan Ignacio v Ramirez Utermann, Carlos | 6-3,6-4 | |
| Challenger Morelos Qual | 02/13 19:05 | 45 | Barrientos, Nicolas v Ramirez Utermann, Carlos | 6-1,6-4 | |
| ITF Bolivia F3 | 09/21 18:30 | 25 | Ramirez Utermann, Carlos v Brandao, Filipe | 4-6,3-6 | |
| ITF Bolivia F2 | 09/17 16:55 | 27 | Ramirez Utermann, Carlos v Mendoza, Alejandro | 7-6,4-6,5-7 | |
| ITF Bolivia F2 | 09/16 16:05 | 26 | Ramirez Utermann, Carlos v Villarruel, Santiago | 3-6,7-6,6-4 | |
| ITF Bolivia F2 | 09/15 15:55 | 25 | Turini, Thales v Ramirez Utermann, Carlos | 6-7,5-7 | |
| ITF Bolivia F1 | 09/07 19:50 | 25 | Brandao, Filipe v Ramirez Utermann, Carlos | 3-6,7-6,6-1 | |
| ITF Colombia F7 | 08/04 15:00 | 25 | Daniel Dutra Da Silva v Ramirez Utermann, Carlos | 6-3,6-1 | |
| ITF Colombia F7 | 08/02 15:00 | 62 | Ramirez Utermann, Carlos v Builes, Tomas | 6-4,6-4 | |
| ITF Mexico F8 | 06/24 16:10 | - | Ramirez Utermann, Carlos v Hank, Tigre | 2-6,4-6 | |
| ITF Mexico F7 | 06/15 19:30 | - | Ramirez Utermann, Carlos v Johns, Collin | 3-6,6-2,4-6 |