Stadium: Court 8 Round: 14 Ground: Clay
| ATP - Lyon | 2021/05/16 16:25 | Joao Sousa v Marcora, Roberto | 6-3,6-4 |
| Challenger - Prague | 2021/05/04 08:30 | Marcora, Roberto v Marc Polmans | 6-7,2-6 |
| Challenger - Rome | 2021/04/29 11:15 | Nino Serdarusic v Marcora, Roberto | 4-6,6-1,6-4 |
| Challenger - Rome | 2021/04/27 14:00 | Aleksandar Vukic v Marcora, Roberto | 4-6,1-6 |
| Challenger - Rome | 2021/04/21 10:30 | Marcora, Roberto v Juan Pablo Varillas | 3-6,0-6 |
| Challenger - Rome | 2021/04/20 10:20 | Gojo, Borna v Marcora, Roberto | 2-6,3-6 |
| ATP - Monte-Carlo | 2021/04/10 12:10 | Marcora, Roberto v Delbonis, Federico | 2-6,5-7 |
| ATP Marbella | 2021/04/04 10:00 | Marcora, Roberto v Lorenzo Giustino | 6-7,4-6 |
| Challenger Heilbronn | 2021/05/13 10:00 | Bernabe Zapata Miralles v Sumit Nagal | 6-3,6-1 |
| Challenger Heilbronn | 2021/05/12 08:30 | Antoine Hoang v Sumit Nagal | 6-1,1-6,4-6 |
| Challenger Heilbronn | 2021/05/10 13:20 | Sumit Nagal v Denis Kudla | 7-5,1-6,6-1 |
| Challenger - Prague | 2021/05/07 13:00 | Norbert Gombos v Sumit Nagal | 6-4,6-2 |
| Challenger - Prague | 2021/05/06 10:00 | Stakhovsky, Sergiy v Sumit Nagal | 6-4,1-6,4-6 |
| Challenger - Prague | 2021/05/04 10:25 | Zdenek Kolar v Sumit Nagal | 2-6,4-6 |
| ATP - Munich | 2021/04/24 12:15 | Norbert Gombos v Sumit Nagal | 6-4,6-7,6-1 |
| ATP - Barcelone | 2021/04/19 11:25 | Sumit Nagal v Pierre-Hugues Herbert | 5-7,0-6 |