| Challenger - Blois | 06/17 14:20 | 24 | Juan P Varillas v Ruben Ramirez-Hidalgo | 6-3,6-1 | |
| Challenger - Alphen | 09/06 12:05 | 25 | Ruben Ramirez-Hidalgo v Kamil Majchrzak | 3-6,2-6 | |
| Challenger - Portoroz | 08/07 17:00 | 25 | Sven Lah v Ruben Ramirez-Hidalgo | 6-4,6-4 | |
| Challenger - Tampere | 07/27 12:20 | 26 | [198] Ruben Rubén R. Hidalgo v Inigo Cervantes [280] | 6-4,3-6,4-6 | |
| Challenger - Tampere | 07/25 08:00 | 25 | [198] Ruben Rubén R. Hidalgo v Markus Eriksson [356] | 6-2,6-3 | |
| Challenger - Poznan | 07/21 13:25 | 27 | [123] Adam Pavlasek v Ruben Rubén R. Hidalgo [187] | 6-2,6-4 | |
| Challenger - Poznan | 07/19 11:30 | 26 | [417] Mariano Kestelboim v Ruben Rubén R. Hidalgo [187] | 3-6,2-6 | |
| Challenger - Poznan | 07/17 16:30 | 25 | Maciej Rajski v Ruben Rubén R. Hidalgo | 4-6,1-6 | |
| Challenger - Perúgia | 07/12 14:20 | 25 | [112] Marcel Granollers v Ruben Rubén R. Hidalgo [172] | 6-3,7-5 | |
| Challenger - Marburg | 07/04 13:00 | 25 | Ruben Ramirez-Hidalgo v Maximo Gonzalez | 2-6,6-3,1-6 | |
| Wimbledon - Qualificação | 06/26 16:20 | 44 | [210] James McGee v Ruben Rubén R. Hidalgo [172] | 6-7,6-3,6-4 | |
| Challenger - Lisboa | 06/12 14:10 | 25 | Ruben Ramirez-Hidalgo v Gleb Sakharov | 3-6,4-6 | |
| ITF - Itália F16 | 06/06 15:25 | 25 | Ruben Rubén R. Hidalgo v Luca Prevosto | 1-6,7-5,4-6 | |
| Challenger de Vicenza | 05/29 12:50 | 25 | [168] Ruben Ramirez-Hidalgo v Matteo Berrettini [255] | 4-6,4-6 | |
| Open de França - Qualificação | 05/22 09:45 | 44 | Dmitry Popko v Ruben Rubén R. Hidalgo | 6-2,6-4 | |
| Challenger - Roma | 05/09 13:05 | 25 | Yannick Maden v Ruben Rubén R. Hidalgo | 6-2,6-1 | |
| Challenger - Ostrava | 05/04 08:00 | 26 | Ruben Rubén R. Hidalgo v Stefano Travaglia | 3-6,1-6 | |
| Challenger - Ostrava | 05/02 08:00 | 25 | Ruben Rubén R. Hidalgo v David Poljak | 6-3,6-2 | |
| Challenger - Francavilla | 04/28 14:45 | - | Ruben Rubén R. Hidalgo v Alessandro Giannessi | 6-4,4-6,0-0 | |
| Challenger - Francavilla | 04/27 10:30 | 26 | Ruben Rubén R. Hidalgo v Yannik Reuter | 6-1,6-1 | |
| Challenger - Francavilla | 04/25 11:30 | 25 | Ruben Rubén R. Hidalgo v Omar Giacalone | 3-6,7-6,6-3 | |
| Challenger - Cidade do Panamá | 04/04 23:45 | 25 | Ruben Rubén R. Hidalgo v Victor E Burgos | 4-6,4-6 | |
| Challenger - Saint-Brieuc | 03/30 11:25 | 26 | [198] Marco Chiudinelli v Ruben Ramirez-Hidalgo [148] | 6-0,6-1 | |
| Challenger - Saint-Brieuc | 03/28 10:15 | 25 | [271] Laurent Lokoli v Ruben Ramirez-Hidalgo [148] | 1-6,6-4,3-6 | |
| Challenger - Buenos Aires | 03/18 15:25 | 28 | Taro Daniel v Ruben Rubén R. Hidalgo | 7-5,6-2 | |
| Challenger - Buenos Aires | 03/17 22:05 | 27 | Ruben Rubén R. Hidalgo v Rogerio Dutra Silva | 7-6,4-6,6-4 | |
| Challenger - Buenos Aires | 03/17 16:30 | 26 | Ruben Rubén R. Hidalgo v Juan Pablo Paz | 7-6,6-4 | |
| Challenger - Buenos Aires | 03/16 14:05 | 25 | Guido Andreozzi v Ruben Rubén R. Hidalgo | 2-6,7-6,2-6 | |
| Challenger - Santiago | 03/07 14:30 | 25 | [122] Arthur De Greef v Ruben Rubén R. Hidalgo [151] | 7-6,6-2 | |
| ATP - Rio de Janeiro - Qualificação | 02/18 12:05 | - | Victor Estrella Burgos v Ruben Ramirez-Hidalgo | 6-3,6-3 |