Stadium: Court 1 Round: 26 Ground: Hardcourt outdoor
| Australian Open | 2020/01/20 23:30 | Tatsuma Ito v Prajnesh Gunneswaran | 6-4,6-2,7-5 |
| Challenger Split | 2020/09/29 11:20 | Viktor Troicki v Tatsuma Ito | 6-2,6-4 |
| French Open | 2020/09/21 15:10 | Tatsuma Ito v Nikola Milojevic | 6-4,0-6,1-6 |
| Challenger Calgary | 2020/02/26 01:25 | Yusuke Takahashi v Tatsuma Ito | 6-3,6-3 |
| Challenger Launceston | 2020/02/04 01:00 | Matias Franco Descotte v Tatsuma Ito | 7-6,6-4 |
| Australian Open | 2020/01/22 03:25 | Tatsuma Ito v Novak Djokovic | 1-6,4-6,2-6 |
| Australian Open | 2020/01/20 23:30 | Tatsuma Ito v Prajnesh Gunneswaran | 6-4,6-2,7-5 |
| ATP Auckland | 2020/01/11 22:00 | Michael Mmoh v Tatsuma Ito | 6-2,6-2 |
| ATP Auckland | 2020/01/10 22:00 | Shuichi Sekiguchi v Tatsuma Ito | 3-6,6-4,4-6 |
| Challenger Orlando | 2020/11/22 16:00 | Brandon Nakashima v Prajnesh Gunneswaran | 6-3,6-4 |
| Challenger Orlando | 2020/11/21 16:00 | Prajnesh Gunneswaran v Christopher Eubanks | 6-4,7-6 |
| Challenger Orlando | 2020/11/20 15:00 | Dmitry Popko v Prajnesh Gunneswaran | 0-6,3-6 |
| Challenger Orlando | 2020/11/17 17:00 | Sadio Doumbia v Prajnesh Gunneswaran | 3-6,5-7 |
| Challenger Cary | 2020/11/15 17:00 | Prajnesh Gunneswaran v Denis Kudla | 6-3,3-6,0-6 |
| Challenger Cary | 2020/11/13 18:20 | Prajnesh Gunneswaran v Thomaz Bellucci | 3-6,7-5,7-6 |
| Challenger Cary | 2020/11/12 17:35 | Prajnesh Gunneswaran v Jack Sock | 6-7,6-2,7-6 |
| Challenger Cary | 2020/11/10 15:30 | Prajnesh Gunneswaran v Peter Polansky | 6-2,6-2 |