| Challenger Szczecin Qual | 09/09 09:00 | 46 | Tomas Barrios Vera v Slobodchikov, Ronald | 6-0,6-1 | |
| Challenger Szczecin | 09/08 10:10 | 45 | Barrios Vera, Marcelo Tomas v Wetoszka, Krzysztof | 6-1,6-1 | |
| Challenger Seville | 09/02 10:00 | 46 | [261] Grigelis, Laurynas v Marcelo Tomas Barrios Vera [333] | 6-3,6-4 | |
| Challenger Seville | 09/01 12:00 | 45 | [333] Marcelo Tomas Barrios Vera v Gil, Fred [409] | Retired | |
| Challenger Como | 08/26 11:55 | 46 | [391] Aslan Karatsev v Marcelo Tomas Barrios Vera [333] | 6-1,4-6,7-6 | |
| Challenger Como | 08/25 11:15 | 45 | [333] Marcelo Tomas Barrios Vera v Elliot Benchetrit [292] | 7-5,6-3 | |
| Challenger Lexington | 07/31 19:35 | 25 | [377] Joris De Loore v Barrios Vera, Marcelo Tomas [335] | 1-6,7-6,6-4 | |
| Binghamton, USA | 07/26 21:45 | 26 | [98] Jordan Thompson v Marcelo Tomas Barrios Vera [346] | 6-1,6-3 | |
| Binghamton, USA | 07/26 16:00 | 25 | [346] Marcelo Tomas Barrios Vera v Myneni, Saketh [339] | 3-6,6-3,6-4 | |
| Challenger Recanati | 07/03 18:20 | 25 | [273] Aldin Setkic v Barrios Vera, Marcelo Tomas [351] | 4-6,6-3,6-4 | |
| Challenger Recanati Qual | 07/02 10:00 | 54 | [351] Barrios Vera, Marcelo Tomas v Mertens, Yannick [348] | 7-6,6-3 | |
| Challenger Recanati Qual | 07/01 08:00 | 46 | [292] Jurij Rodionov v Barrios Vera, Marcelo Tomas [353] | 6-7,6-3,4-6 | |
| Challenger Recanati Qual | 06/30 08:00 | 45 | [353] Barrios Vera, Marcelo Tomas v Trusendi, Walter [333] | 6-2,6-2 | |
| Challenger Milan Qual | 06/23 15:05 | 45 | [370] Marcelo Tomas Barrios Vera v Sebastian Fanselow [421] | 2-6,6-1,2-6 | |
| Challenger Blois | 06/21 16:10 | 26 | [370] Marcelo Tomas Barrios Vera v Felix Auger Aliassime [172] | 3-6,4-6 | |
| Challenger Blois | 06/19 11:35 | 25 | [202] Gimeno-Traver, Daniel v Marcelo Tomas Barrios Vera [370] | 6-2,3-6,3-6 | |
| Challenger Blois Qual | 06/18 09:00 | 54 | [370] Barrios Vera, Marcelo Tomas v Sebastian Fanselow [421] | 6-2,6-1 | |
| Challenger Blois Qual | 06/17 10:20 | 46 | [369] Barrios Vera, Marcelo Tomas v Aleksandar Vukic [445] | 6-3,6-2 | |
| Challenger Blois Qual | 06/16 10:30 | 45 | [369] Barrios Vera, Marcelo Tomas v Descloix, Dorian [474] | 6-4,6-3 | |
| Challenger Rome Qual | 05/05 08:00 | 45 | Stanek, Robin v Barrios Vera, Marcelo Tomas | Walkover | |
| ITF USA F12 | 04/28 17:00 | 28 | Barrios Vera, Marcelo Tomas v Ricardo Rodriguez | 4-6,5-7 | |
| ITF USA F12 | 04/27 18:30 | 27 | [402] Barrios Vera, Marcelo Tomas v Ore, I. A. [459] | 7-6,6-3 | |
| ITF USA F12 | 04/26 16:00 | 26 | [402] Barrios Vera, Marcelo Tomas v Harrison Adams [475] | 6-4,6-4 | |
| ITF USA F12 | 04/25 19:00 | 25 | Barrios Vera, Marcelo Tomas v Isaiah Strode | 6-4,7-5 | |
| ITF USA F11 | 04/22 13:00 | 29 | [247] Noah Rubin v Barrios Vera, Marcelo Tomas [401] | 3-6,4-6 | |
| ITF USA F11 | 04/21 22:30 | 28 | Bensoussan, Samuel v Tomas Barrios Vera | 2-6,2-6 | |
| ITF USA F11 | 04/20 16:50 | 27 | Ricardo Rodriguez v Barrios Vera, Marcelo Tomas | 3-6,2-6 | |
| ITF USA F11 | 04/19 15:55 | 26 | Findel-Hawkins, Jack v Barrios Vera, Marcelo Tomas | 1-6,1-6 | |
| ITF USA F11 | 04/18 16:05 | 25 | Haworth, Christopher G v Barrios Vera, Marcelo Tomas | 2-6,2-6 | |
| ITF Greece F5 | 04/01 06:15 | 29 | [361] Jankovits, Yannick v Barrios Vera, Marcelo Tomas [447] | 6-4,6-3 |
Wikipedia - Tomás Barrios Vera
Marcelo Tomás Barrios Vera, né le à Chillán, est un joueur de tennis chilien, professionnel depuis 2015.