| Challenger Losinj | 10/19 09:35 | 25 | [104] Marco Cecchinato v Lopez San Martin, Alvaro [341] | 7-6,7-6 | |
| Challenger Napoli | 10/13 09:00 | 26 | [361] Lopez San Martin, Alvaro v Tallon Griekspoor [118] | 3-6,3-6 | |
| Challenger Napoli | 10/12 11:20 | 25 | [361] Lopez San Martin, Alvaro v Timofey Skatov [271] | 6-3,6-2 | |
| Challenger Napoli | 10/11 12:15 | - | [284] Evan Furness v Lopez San Martin, Alvaro [361] | 4-6,0-6 | |
| Challenger Napoli | 10/11 08:30 | 14 | [444] Louis Wessels v Lopez San Martin, Alvaro [361] | 6-7,4-6 | |
| Challenger - Barcelone | 10/05 14:00 | 25 | [361] Lopez San Martin, Alvaro v Nuno Borges [273] | 1-6,0-6 | |
| Challenger - Barcelone | 10/04 13:00 | 19 | [361] Lopez San Martin, Alvaro v Georgii Kravchenko [452] | 2-6,4-6 | |
| Challenger - Barcelone | 10/03 08:00 | 14 | Lopez San Martin, Alvaro v Daniel Rincon | 4-6,7-5,6-3 | |
| Challenger Murcia | 09/27 13:25 | 25 | [306] Alexander Ritschard v Lopez San Martin, Alvaro [360] | 6-1,7-6 | |
| Challenger Seville | 09/08 17:45 | 26 | [74] Andujar, Pablo v Lopez San Martin, Alvaro [398] | 3-6,6-1,6-4 | |
| Challenger Seville | 09/07 09:00 | 25 | [398] Lopez San Martin, Alvaro v Benjamin Winter Lopez [488] | 6-4,4-6,6-1 | |
| ITF M25 Oviedo | 09/04 10:00 | 29 | [382] Oriol Roca Batalla v Lopez San Martin, Alvaro [398] | 7-6,6-1 | |
| ITF M25 Oviedo | 09/03 09:00 | 28 | Lopez San Martin, Alvaro v Garcia, Alejandro | 6-2,6-0 | |
| ITF M25 Oviedo | 09/02 10:20 | 27 | [410] Johan Nikles v Lopez San Martin, Alvaro [398] | 6-7,6-4,5-7 | |
| ITF M25 Oviedo | 09/01 14:40 | 26 | Carlos L-Montagud v Lopez San Martin, Alvaro | 4-6,6-2,2-6 | |
| ITF M25 Oviedo | 08/31 14:15 | 25 | Alex M Pujolras v Lopez San Martin, Alvaro | 4-6,2-6 | |
| Challenger - Barletta | 08/22 14:45 | 14 | Gabriele Piraino v Lopez San Martin, Alvaro | 7-6,3-6,7-5 | |
| ITF M25 Denia | 07/30 15:00 | 27 | [391] Nick Hardt v Lopez San Martin, Alvaro [405] | 6-0,6-3 | |
| ITF M25 Denia | 07/29 14:00 | 26 | Joris De Loore v Lopez San Martin, Alvaro | 6-3,6-7,6-7 | |
| ITF M25 Denia | 07/28 08:00 | 25 | Cias, Pawel v Lopez San Martin, Alvaro | 6-7,6-7 | |
| ITF M25 Gandia | 07/24 14:30 | 28 | [337] Javier Barranco Cosano v Lopez San Martin, Alvaro [401] | 7-5,6-3 | |
| ITF M25 Gandia | 07/23 08:00 | 27 | Lopez San Martin, Alvaro v Andreu Garcia, Francisco | 6-4,6-4 | |
| ITF M25 Gandia | 07/22 10:35 | 26 | Lopez San Martin, Alvaro v Alejandro Manzanera Pertusa | 4-6,6-1,6-0 | |
| ITF M25 Gandia | 07/21 11:00 | 25 | Lopez San Martin, Alvaro v Bondarevskiy, Yan | 6-3,6-2 | |
| Challenger Amersfoort | 07/12 09:00 | 19 | Lopez San Martin, Alvaro v Deney Wassermann | 4-6,4-6 | |
| Challenger Amersfoort | 07/11 10:00 | 14 | Lopez San Martin, Alvaro v van Den Berg, Bart | 6-2,6-3 | |
| ITF M25 Marburg | 07/09 09:00 | 27 | [408] Lopez San Martin, Alvaro v Tepavac, Marko [489] | 5-7,3-6 | |
| ITF M25 Marburg | 07/08 08:50 | 26 | Lopez San Martin, Alvaro v Sidane Pontjodikromo | 2-6,6-3,6-3 | |
| ITF M25 Marburg | 07/06 16:00 | 25 | Lopez San Martin, Alvaro v Gauthier Onclin | 6-3,6-3 | |
| ITF - M25 Grasse | 06/20 12:50 | 29 | Lopez San Martin, Alvaro v Valentin Royer | 7-6,7-5 |
Álvaro López San Martín (Spanish pronunciation: [ˈalβaɾo ˈlopeθ sam maɾˈtin]; born 2 June 1997 in Barcelona) is a Spanish tennis player.
López San Martín won the 2015 French Open boys' doubles championship, partnering Jaume Munar.
López San Martín has a career high ATP singles ranking of 349 achieved on 30 January 2017.