| ITF M25 - Portoviejo | 07/30 14:30 | 27 | Nicolas Alvarez v Jose Pereira | 7-6,6-3 | |
| ITF M25 - Portoviejo | 07/29 16:35 | 26 | Nicolas Alvarez v Noah Schachter | 6-2,6-2 | |
| ITF M25 - Portoviejo | 07/27 17:15 | 25 | Nicolas Alvarez v Alvaro G Meza | Retired | |
| ITF M25 - Tulsa | 06/17 01:55 | 25 | Ezekiel Clark v Nicolas Alvarez | 6-4,6-2 | |
| Challenger Orlando | 06/07 14:00 | 19 | [341] Nicolas Mejia v Nicolas Alvarez [365] | 6-3,7-5 | |
| Challenger Orlando | 06/06 16:20 | 14 | Strong Kirchheimer v Nicolas Alvarez | 3-6,5-7 | |
| Challenger Oeiras | 05/23 11:35 | 14 | [360] Nicolas Alvarez v Timofey Skatov [442] | 3-6,2-6 | |
| ITF M25 - Vic | 05/18 09:50 | 25 | [360] Nicolas Alvarez v Maxime Hamou [410] | 6-4,0-6,6-7 | |
| ITF M25 - Prag | 05/09 13:30 | 62 | Nicolas Alvarez v Milos Karol | 3-6,4-6 | |
| Challenger Salinas 2 | 04/27 14:30 | 19 | Nicolas Alvarez v Tak Khunn Wang | 6-7,4-6 | |
| Challenger Salinas 2 | 04/26 18:00 | 14 | [362] Nicolas Alvarez v Yusuke Takahashi [460] | 7-6,6-0 | |
| Challenger Salinas | 04/19 17:55 | 25 | Nicolas Alvarez v Nicolas Jarry | 1-6,1-6 | |
| Challenger Santiago | 03/18 16:00 | 26 | Nicolas Jarry v Nicolas Alvarez | 6-3,6-4 | |
| Challenger Santiago | 03/16 15:15 | 25 | [357] Nicolas Alvarez v Pedro Sakamoto [296] | 3-6,6-4,6-3 | |
| ATP Santiago | 03/06 13:00 | 14 | [165] Alejandro Tabilo v Nicolas Alvarez [352] | 6-4,6-3 | |
| ATP Buenos Aires | 02/27 20:05 | 14 | [104] Jaume Munar v Nicolas Alvarez [349] | 6-4,6-7,6-2 | |
| ATP Cordoba | 02/20 14:40 | 14 | [260] Marcelo Tomas Barrios Vera v Nicolas Alvarez [344] | 6-1,6-2 | |
| Challenger Concepcion | 02/15 14:00 | 25 | [165] Emilio Gomez v Nicolas Alvarez [344] | 6-4,1-6,6-0 | |
| Challenger Campinas | 11/29 15:00 | - | [339] Jelle Sels v Nicolas Alvarez [350] | 6-2,6-1 | |
| Challenger Campinas | 11/28 16:00 | 64 | [375] Aziz Dougaz v Nicolas Alvarez [350] | 6-3,4-6,4-6 | |
| Challenger Lima | 11/25 19:00 | 26 | [175] Alejandro Tabilo v Nicolas Alvarez [350] | 6-4,5-7,6-2 | |
| Challenger Lima | 11/23 19:30 | 25 | Nicolas Jarry v Nicolas Alvarez | 2-6,6-2,2-6 | |
| Challenger Guayaquil | 11/15 15:00 | 19 | Nicolas Alvarez v Thiago Agustin Tirante | 4-6,7-6,5-7 | |
| Challenger Guayaquil | 11/14 15:00 | 64 | [347] Nicolas Alvarez v Sergio Martos Gornes [190] | 6-0,6-2 | |
| Challenger Cary | 11/08 15:00 | - | [298] Kevin King v Nicolas Alvarez [347] | 7-6,6-0 | |
| Challenger Cary | 11/07 17:10 | 64 | Ryan Shane v Nicolas Alvarez | 3-6,3-6 | |
| Spanien - Summer League | 07/24 10:35 | - | Pedro Martinez v Nicolas Alvarez | 6-3,3-6,6-4 | |
| Spanien - Summer League | 07/23 08:00 | - | Nicolas Alvarez v Adrian Menendez-Maceiras | 6-3,6-2 | |
| Spanien - Summer League | 07/16 15:00 | - | Nicolas Alvarez v Javier Barranco Cosano | 0-6,4-6 | |
| Spanien - Summer League | 07/15 15:00 | - | Nicolas Alvarez v Alex M Pujolras | 6-4,6-2 |
Nicolás Álvarez (Spanish pronunciation: [nikoˈlas ˈalβaɾes]; born 8 June 1996) is a Peruvian tennis player.
On the junior tour, Álvarez has a career high ITF junior ranking of 17 achieved in March 2014.
Álvarez has a career high ATP singles ranking of 295 achieved on January 6, 2020. He also has a career high ATP doubles ranking of 345, achieved on March 2, 2020.
Álvarez has represented Peru at Davis Cup. In Davis Cup he has a win–loss record of 6–5.