| ITF Mexico F2 | 05/01 20:00 | 25 | Barrios Vera, Marcelo Tomas v Severino, Carlos Eduardo | 5-7,2-6 | |
| ITF Greece F4 | 04/01 06:30 | 27 | Marcelo Tomas Barrios Vera v Hess-Olesen, Soren | 3-6,6-7 | |
| ITF Greece F4 | 03/30 06:30 | 26 | [457] Marcelo Tomas Barrios Vera v Andrea Vavassori [343] | 4-6,7-6,6-3 | |
| ITF Greece F4 | 03/28 11:35 | 25 | [457] Marcelo Tomas Barrios Vera v O'Mara, Jonny [348] | 6-4,6-3 | |
| ITF Greece F3 | 03/26 08:00 | 29 | [457] Marcelo Tomas Barrios Vera v Marek Jaloviec [302] | 2-6,5-7 | |
| ITF Greece F3 | 03/25 08:30 | 28 | Alex Molcan v Marcelo Tomas Barrios Vera | 4-6,3-6 | |
| ITF Greece F3 | 03/24 07:30 | 27 | [457] Marcelo Tomas Barrios Vera v Ismailov, Temur [408] | 7-5,6-7,6-2 | |
| ITF Greece F3 | 03/23 07:30 | 26 | Benjamin Bonzi v Marcelo Tomas Barrios Vera | 4-6,4-6 | |
| ITF Greece F3 | 03/22 13:00 | 25 | Dominik Kellovsky v Marcelo Tomas Barrios Vera | 4-6,4-6 | |
| ITF Greece F2 | 03/15 12:45 | 25 | Hampel, Lenny v Marcelo Tomas Barrios Vera | Cancelled | |
| Challenger - Santiago | 03/06 20:00 | 25 | Souza, Joao Olavo v Barrios Vera, Marcelo Tomas | 6-3,6-4 | |
| Challenger Morelos Qual | 02/19 16:30 | 54 | Barrios Vera, Marcelo Tomas v Escobar, Gonzalo | 3-6,6-7 | |
| Challenger Morelos Qual | 02/18 18:05 | 46 | Barrios Vera, Marcelo Tomas v Alan F R Fierros | 6-1,4-6,6-4 | |
| Tempe, USA, Qualifying | 02/13 17:00 | 54 | Nicolas Jarry v Barrios Vera, Marcelo Tomas | 6-2,6-0 | |
| Tempe, USA, Qualifying | 02/12 19:20 | 46 | Barrios Vera, Marcelo Tomas v Viola, Matteo | 6-4,6-2 | |
| Tempe, USA, Qualifying | 02/11 20:00 | 45 | Barrios Vera, Marcelo Tomas v Chang, Jonathan | 6-3,6-1 | |
| Coupe Davis | 02/05 14:00 | 27 | Olivares, Jose v Marcelo Tomas Barrios Vera | 6-7,6-7 | |
| ITF Chile F6 | 12/08 14:00 | 27 | Genaro Alberto Olivieri v Barrios Vera, Marcelo Tomas | 7-5,6-1 | |
| ITF Chile F6 | 12/07 18:05 | 26 | Blumenberg, Alex v Barrios Vera, Marcelo Tomas | 3-6,6-3,2-6 | |
| ITF Chile F6 | 12/06 20:50 | 25 | Facundo Juarez v Barrios Vera, Marcelo Tomas | 2-6,7-5,3-6 | |
| ITF Chile F5 | 11/29 16:40 | 25 | Barrios Vera, Marcelo Tomas v Bruna, Esteban | 3-6,4-6 | |
| Montevideo, Uruguay | 11/14 21:00 | 25 | Londero, Juan Ignacio v Barrios Vera, Marcelo Tomas | 6-0,6-1 | |
| Bogota, Colombia | 11/08 15:00 | 25 | Escobar, Gonzalo v Barrios Vera, Marcelo Tomas | 7-5,6-4 | |
| Challenger Bogota Qual | 11/06 18:30 | 54 | Barrios Vera, Marcelo Tomas v Marcelo Zormann | 6-4,6-4 | |
| Challenger Bogota Qual | 11/05 21:00 | 46 | Barrios Vera, Marcelo Tomas v Oscar Jose Gutierrez | 6-4,7-6 | |
| Challenger Bogota Qual | 11/05 15:00 | 45 | Barrios Vera, Marcelo Tomas v Juan Sebastian Gomez | 6-0,6-2 | |
| Challenger Santiago 2 | 10/18 16:55 | 25 | Barrios Vera, Marcelo Tomas v Mayer, Leonardo | 4-6,4-6 | |
| ITF Colombia F5 | 10/13 14:00 | 27 | Barrios Vera, Marcelo Tomas v Gomez, Alejandro | 3-6,4-6 | |
| ITF Colombia F5 | 10/12 15:45 | 26 | Barrios Vera, Marcelo Tomas v Barrios, Geronimo | 6-2,4-6,6-4 | |
| ITF Colombia F5 | 10/11 20:50 | 25 | Tomas Barrios Vera v Silva, Caio | 6-3,6-4 |
Wikipedia - Tomás Barrios Vera
Marcelo Tomás Barrios Vera, né le à Chillán, est un joueur de tennis chilien, professionnel depuis 2015.