| Costa do Sauipe challenger | Round | Result | H | A | 
		
			| 24.10. |  | Nava E. - Pacheco Mendez R. | 1R | 6-3, 6-4 | 1.26 | 3.60 | 
		
			| Curitiba challenger | Round | Result | H | A | 
		
			| 15.10. |  | Prado Angelo J. - Pacheco Mendez R. | R16 | 7-62, 6-3 | 2.06 | 1.72 | 
		
			| 13.10. |  | Pacheco Mendez R. - Ficovich J. | 1R | 3-6, 6-4, 6-4 | 1.96 | 1.77 | 
		
			| Cali challenger | Round | Result | H | A | 
		
			| 07.10. |  | Prado Angelo J. - Pacheco Mendez R. | 1R | 6-3, 5-7, 6-3 | 1.82 | 1.92 | 
		
			| Antofagasta challenger | Round | Result | H | A | 
		
			| 02.10. |  | Guillen Meza A. - Pacheco Mendez R. | R16 | 6-3, 6-2 | 1.55 | 2.33 | 
		
			| 30.09. |  | Pacheco Mendez R. - Boscardin Dias P. | 1R | 6-3, 6-1 | 1.68 | 2.09 | 
		
			| St. Tropez challenger | Round | Result | H | A | 
		
			| 18.09. |  | Echargui M. - Pacheco Mendez R. | R16 | 6-3, 6-4 | 1.80 | 1.93 | 
		
			| 16.09. |  | Pacheco Mendez R. - Donnet E. | 1R | 3-6, 6-3, 6-2 | 1.55 | 2.33 | 
		
			| 15.09. |  | Pacheco Mendez R. - Vylegzhanin N. | Q-R16 | 6-4, 6-3 | 1.31 | 3.24 | 
		
			| 14.09. |  | Pacheco Mendez R. - McHugh A. | Q-1R | 3-6, 7-67, 7-64 | 1.34 | 3.05 | 
		
			| Davis Cup | Round | Result | H | A | 
		
			| 13.09. |  | Pacheco Mendez R. - Lajal M. |  | 6-4, 6-4 | 2.74 | 1.41 | 
		
			| 12.09. |  | Pacheco Mendez R. - Glinka D. |  | 3-6, 6-2, 6-3 | 2.64 | 1.43 | 
		
			| Istanbul challenger | Round | Result | H | A | 
		
			| 02.09. |  | Gombos N. - Pacheco Mendez R. | 1R | 6-2, 2-6, 7-65 | 2.12 | 1.66 | 
		
			| US Open | Round | Result | H | A | 
		
			| 21.08. |  | Passaro F. - Pacheco Mendez R. | Q-2R | 4-6, 7-62, 6-4 | 1.51 | 2.50 | 
		
			| 19.08. |  | Pacheco Mendez R. - Gueymard Wayenburg S. | Q-1R | 62-7, 6-3, 6-1 | 1.75 | 2.02 | 
		
			| Cancun challenger | Round | Result | H | A | 
		
			| 15.08. |  | De Jong J. - Pacheco Mendez R. | R16 | 6-1, 6-2 | 1.20 | 4.19 | 
		
			| 14.08. |  | Pacheco Mendez R. - Trungelliti M. | 1R | 6-4, 7-63 | 1.60 | 2.24 | 
		
			| Chicago challenger | Round | Result | H | A | 
		
			| 05.08. |  | Zheng M. - Pacheco Mendez R. | 1R | 7-67, 6-2 | 1.35 | 2.98 | 
		
			| Lexington challenger | Round | Result | H | A | 
		
			| 29.07. |  | Basavareddy N. - Pacheco Mendez R. | 1R | 6-3, 6-3 | 1.33 | 3.15 | 
		
			| Bloomfield Hills challenger | Round | Result | H | A | 
		
			| 21.07. |  | Zheng M. - Pacheco Mendez R. | 1R | 7-5, 6-2 | 1.54 | 2.37 | 
		
			| Los Cabos | Round | Result | H | A | 
		
			| 16.07. |  | Walton A. - Pacheco Mendez R. | 1R | 7-65, 6-2 | 1.52 | 2.51 | 
		
			| Milan challenger | Round | Result | H | A | 
		
			| 24.06. |  | Roca Batalla O. - Pacheco Mendez R. | 1R | 4-6, 6-4, 6-1 | 1.62 | 2.18 | 
		
			| Sassuolo challenger | Round | Result | H | A | 
		
			| 20.06. |  | Lajovic D. - Pacheco Mendez R. | SF | 6-3, 6-2 | 1.38 | 2.90 | 
		
			| 19.06. |  | Pacheco Mendez R. - Rincon D. | QF | 6-3, 6-2 | 2.18 | 1.63 | 
		
			| 18.06. |  | Pacheco Mendez R. - Zeppieri G. | R16 | 61-7, 7-65, 6-4 | 3.13 | 1.33 | 
		
			| 17.06. |  | Pacheco Mendez R. - Gaubas V. | 1R | 6-0, 7-5 | 3.16 | 1.33 | 
		
			| Perugia challenger | Round | Result | H | A | 
		
			| 12.06. |  | Arnaboldi F. - Pacheco Mendez R. | R16 | 6-2, 6-4 | 1.59 | 2.24 | 
		
			| 10.06. |  | Pacheco Mendez R. - Cecchinato M. | 1R | 7-66, 6-2 | 1.67 | 2.11 | 
		
			| Heilbronn challenger | Round | Result | H | A | 
		
			| 06.06. |  | Trungelliti M. - Pacheco Mendez R. | QF | 2-6, 6-4, 6-2 | 1.41 | 2.76 | 
		
			| 05.06. |  | Pacheco Mendez R. - Nagal S. | R16 | 7-5, 62-7, 6-0 | 2.98 | 1.36 | 
		
			| 02.06. |  | Pacheco Mendez R. - Martin Tiffon P. | 1R | 3-6, 6-3, 6-1 | 2.46 | 1.50 | 
		
			| Vicenza challenger | Round | Result | H | A | 
		
			| 26.05. |  | Neumayer L. - Pacheco Mendez R. | 1R | 6-2, 5-7, 6-3 | 1.22 | 3.97 | 
		
			| French Open | Round | Result | H | A | 
		
			| 19.05. |  | Guillen Meza A. - Pacheco Mendez R. | Q-1R | 6-4, 6-3 | 1.39 | 2.87 | 
		
			| Tunis challenger | Round | Result | H | A | 
		
			| 12.05. |  | Wong C. - Pacheco Mendez R. | 1R | 6-2, 6-2 | 2.23 | 1.60 | 
		
			| San Luis Potosi chall. | Round | Result | H | A | 
		
			| 18.04. |  | Perez A. - Pacheco Mendez R. | R16 | 7-5, 6-4 | 2.72 | 1.42 | 
		
			| 16.04. |  | Pacheco Mendez R. - Pannu K. | 1R | 6-2, 6-2 | 1.14 | 5.18 | 
		
			| Mexico City challenger | Round | Result | H | A | 
		
			| 09.04. |  | Pavlovic L. - Pacheco Mendez R. | R16 | 7-64, 6-3 | 1.66 | 2.13 | 
		
			| 09.04. |  | Pacheco Mendez R. - Galarneau A. | 1R | 6-3, 6-3 | 2.02 | 1.73 | 
		
			| Morelos challenger | Round | Result | H | A | 
		
			| 05.04. |  | Jodar R. - Pacheco Mendez R. | QF | 5-7, 7-5, 6-1 | 2.21 | 1.62 | 
		
			| 03.04. |  | Pacheco Mendez R. - Lajal M. | R16 | 7-64, 63-7, 7-68 | 2.66 | 1.44 | 
		
			| 02.04. |  | Pacheco Mendez R. - Alves M. | 1R | 6-3, 6-4 | 1.47 | 2.58 | 
		
			| Morelia challenger | Round | Result | H | A | 
		
			| 26.03. |  | Lajal M. - Pacheco Mendez R. | 1R | 6-1, 7-66 | 1.63 | 2.19 | 
		
			| Merida challenger | Round | Result | H | A | 
		
			| 22.03. |  | Garin C. - Pacheco Mendez R. | QF | 6-3, 6-1 | 1.25 | 3.74 | 
		
			| 21.03. |  | Pacheco Mendez R. - Hernandez Serrano J. | R16 | 6-3, 7-5 | 1.35 | 3.06 | 
		
			| 19.03. |  | Pacheco Mendez R. - Nanda G. | 1R | 6-0, 6-1 | 1.44 | 2.66 | 
		
			| Cap Cana challenger | Round | Result | H | A | 
		
			| 12.03. |  | Bonzi B. - Pacheco Mendez R. | 1R | 2-6, 6-2, 6-2 | 1.17 | 4.77 | 
		
			| Acapulco | Round | Result | H | A | 
		
			| 28.02. |  | Davidovich Fokina A. - Pacheco Mendez R. | QF | 6-2, 6-2 | 1.10 | 7.20 | 
		
			| 27.02. |  | Pacheco Mendez R. - Ruud C. | R16 |  | 11.65 | 1.04 | 
		
			| 26.02. |  | Pacheco Mendez R. - Vukic A. | 1R | 7-5, 4-6, 7-64 | 4.08 | 1.23 | 
		
			| Futures 2025 | Round | Result | H | A | 
		
			| 08.02. |  | Kolar Z. - Pacheco Mendez R. | SF | 3-6, 6-3, 6-0 | 1.41 | 2.82 | 
		
			| 07.02. |  | Pacheco Mendez R. - Oberleitner N. | QF | 6-3, 4-6, 6-4 | 2.14 | 1.63 | 
		
			| 06.02. |  | Pacheco Mendez R. - Martinez T. | R16 | 6-4, 3-6, 6-4 | 1.14 | 5.04 | 
		
			| 05.02. |  | Pacheco Mendez R. - Hernandez Serrano J. | 1R | 6-3, 6-1 | 1.54 | 2.30 | 
		
			| Davis Cup | Round | Result | H | A | 
		
			| 01.02. |  | Erel Y. - Pacheco Mendez R. |  | 6-4, 1-6, 6-1 | 1.85 | 1.85 | 
		
			| Futures 2025 | Round | Result | H | A | 
		
			| 24.01. |  | Piraino G. - Pacheco Mendez R. | QF | 6-4, 6-2 | 1.90 | 1.80 | 
		
			| 23.01. |  | Pacheco Mendez R. - Wagner A. | R16 | 7-65, 6-2 | 1.04 | 9.00 | 
		
			| 23.01. |  | Pacheco Mendez R. - Fita Juan S. | 1R | 6-3, 6-2 | 1.07 | 7.42 | 
		
			| 16.01. |  | Vasa E. - Pacheco Mendez R. | R16 | 6-4, 7-5 | 2.95 | 1.36 | 
		
			| 15.01. |  | Pacheco Mendez R. - Lee K. | 1R | 6-3, 1-6, 6-0 |  |  |