Stadium: Stella Artois Court Round: 26 Ground: Clay
| Challenger - Split | 2020/09/29 12:10 | Klahn, Bradley v Polansky, Peter | 6-7,6-4,7-6 |
| French Open, Paris, France | 2020/09/22 08:00 | Roman Safiullin v Klahn, Bradley | 3-6,6-2,6-4 |
| ATP - Rome | 2020/09/13 14:25 | Klahn, Bradley v Marco Cecchinato | 1-6,4-6 |
| ATP - Rome | 2020/09/12 16:05 | Seppi, Andreas v Klahn, Bradley | 2-6,6-4,6-7 |
| Challenger - Aix en Provence | 2020/09/07 09:30 | Klahn, Bradley v Antoine Hoang | 0-6,2-6 |
| US Open, New York, USA | 2020/09/01 15:00 | Sumit Nagal v Klahn, Bradley | 6-1,6-3,3-6,6-1 |
| Matchplay 120 | 2020/07/02 22:00 | Marcos Giron v Klahn, Bradley | 6-7,7-6,3-6 |
| Challenger - Indian Wells | 2020/03/02 18:00 | Maxime Janvier v Klahn, Bradley | 6-4,6-4 |
| Challenger - Split | 2020/09/29 12:45 | Nino Serdarusic v Alessandro Giannessi | 4-6,4-6 |
| French Open, Paris, France | 2020/09/23 11:10 | Marc Polmans v Alessandro Giannessi | 5-7,6-4,6-3 |
| French Open, Paris, France | 2020/09/21 09:20 | Petrovic, Danilo v Alessandro Giannessi | 4-6,6-7 |
| ATP - Rome | 2020/09/12 13:30 | Hugo Dellien v Alessandro Giannessi | 7-5,6-4 |
| Challenger Trieste | 2020/08/24 10:00 | Tomas Martin Etcheverry v Alessandro Giannessi | 6-3,4-6,6-1 |
| Challenger Todi | 2020/08/19 18:30 | Federico Gaio v Alessandro Giannessi | 6-4,6-2 |
| Challenger Todi | 2020/08/17 16:50 | Alessandro Giannessi v Maxime Janvier | 6-2,6-3 |
| ATP - Buenos Aires | 2020/02/08 18:55 | Alessandro Giannessi v Facundo Bagnis | 3-6,7-5,1-6 |