Stadium: Court 5 Round: 26 Ground: Grass
| ATP - Barcelone - Doubles Hommes | 2021/04/18 12:00 | Mannarino A / Paire B v Daniell/Philipp Oswald | 1-6,7-6,10-7 |
| ATP Stuttgart MD | 2021/06/11 12:15 | Behar A / Escobar G v Daniell/Philipp Oswald | 7-6,7-6 |
| ATP Stuttgart MD | 2021/06/10 09:00 | Nielsen/Rojer v Daniell/Philipp Oswald | 5-7,7-6,4-10 |
| French Open MD | 2021/06/04 16:15 | R Arneodo / B Paire v Daniell/Philipp Oswald | 6-0,6-4 |
| French Open MD | 2021/06/03 14:10 | Fucsovics/Travaglia v Daniell/Philipp Oswald | 3-6,3-6 |
| ATP Parma MD | 2021/05/26 15:25 | Daniell/Philipp Oswald v Bolelli/Gonzalez | 2-6,4-6 |
| ATP - Rome - Doubles Hommes | 2021/05/13 09:55 | Daniell/Philipp Oswald v Mektic/Pavic | 6-7,6-7 |
| ATP - Rome - Doubles Hommes | 2021/05/10 14:00 | Bopanna R / Shapovalov D v Daniell/Philipp Oswald | 4-6,4-6 |
| ATP - Munich - Doubles Hommes | 2021/04/28 10:00 | Daniell/Philipp Oswald v Hanfmann/Koepfer | 6-7,4-6 |
| ATP Queens MD | 2021/06/14 17:50 | Millman/Sitak v Mannarino A / Paire B | 4-6,6-7 |
| ATP - Rome - Doubles Hommes | 2021/05/14 10:00 | Mannarino A / Paire B v Mektic/Pavic | 4-6,2-6 |
| ATP - Rome - Doubles Hommes | 2021/05/13 11:55 | Demoliner M / Medvedev D v Mannarino A / Paire B | 3-6,6-7 |
| ATP - Rome - Doubles Hommes | 2021/05/12 14:00 | Sonego L / Vavassori A v Mannarino A / Paire B | 5-7,6-4,8-10 |
| ATP - Barcelone - Doubles Hommes | 2021/04/21 15:50 | Chardy J / Martin F v Mannarino A / Paire B | 7-6,6-7,10-8 |
| ATP - Barcelone - Doubles Hommes | 2021/04/18 12:00 | Mannarino A / Paire B v Daniell/Philipp Oswald | 1-6,7-6,10-7 |
| ATP - Barcelone - Doubles Hommes | 2021/04/17 15:50 | Gille/Vliegen v Mannarino A / Paire B | 4-6,4-6 |
| ATP - Monte-Carlo - Doubles Hommes | 2021/04/13 12:55 | Mannarino A / Paire B v Koolhof/Kubot | 6-7,3-6 |