Stadium: Rakiura Resort Round: 3 Ground: Hardcourt indoor
| Challenger Salinas 2 MD | 2021/04/27 16:00 | Arias/Zeballos v Barrientos/Galdos | 3-6,1-6 |
| Challenger Salinas MD | 2021/04/22 15:00 | Reyes-Varela/Romboli v Arias/Zeballos | 6-4,5-7,10-5 |
| Challenger Salinas MD | 2021/04/20 19:05 | Juan Diego Rojas/Suarez v Arias/Zeballos | 1-6,2-6 |
| Challenger Santiago MD | 2021/03/18 18:00 | Martinez/Oliveira v Arias/Zeballos | 6-4,6-3 |
| Challenger Santiago MD | 2021/03/17 16:00 | Arias/Zeballos v Carvajal/Torres | 6-2,6-4 |
| ITF M25 Naples MD | 2021/02/23 18:45 | Arias/Zeballos v Bangoura/Redlicki | 1-6,2-6 |
| Challenger Concepcion MD | 2021/02/19 15:00 | Arias/Zeballos v Galdos/Hidalgo | 6-3,5-7,7-10 |
| Challenger Concepcion MD | 2021/02/17 15:00 | Alejandro Bancalari/Iturra v Arias/Zeballos | 0-6,2-6 |
| ATP Parma MD | 2021/05/26 09:00 | Gille/Vliegen v Passaro/Travaglia | 7-6,6-4 |
| ATP Rome MD | 2021/05/12 17:25 | Gille/Vliegen v Ram/Salisbury | 3-6,6-2,10-12 |
| ATP Madrid MD | 2021/05/08 12:00 | Gille/Vliegen v Mektic/Pavic | 4-6,2-6 |
| ATP Madrid MD | 2021/05/07 13:00 | Gille/Vliegen v Dodig/Polasek | 6-3,3-6,10-5 |
| ATP Madrid MD | 2021/05/04 15:40 | Gille/Vliegen v Fucsovics/Ruud | 6-3,6-4 |
| ATP Munich MD | 2021/05/02 10:30 | Koolhof/Krawietz v Gille/Vliegen | 4-6,6-4,10-5 |
| ATP Munich MD | 2021/04/30 10:00 | Gille/Vliegen v Brown/Gojowczyk | 6-3,6-7,13-11 |
| ATP Munich MD | 2021/04/27 09:00 | Erlich/Sharan v Gille/Vliegen | 3-6,2-6 |