Stadium: Court 2 Round: 14 Ground: Hardcourt outdoor
| Challenger Nur-Sultan | 2021/03/01 10:55 | Denis Yevseyev v Tatsuma Ito | 4-6,6-2,3-6 |
| Challenger Nur-Sultan | 2021/02/25 07:10 | Jurij Rodionov v Tatsuma Ito | 6-3,6-2 |
| Challenger Nur-Sultan | 2021/02/24 05:25 | Tatsuma Ito v Vladyslav Manafov | 6-4,6-4 |
| Challenger Istanbul | 2021/01/17 08:50 | Ernesto Escobedo v Tatsuma Ito | 6-1,4-6,6-4 |
| Australian Open | 2021/01/11 10:20 | Tatsuma Ito v Yannick Maden | 4-6,2-6 |
| 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 |
| ATP Delray Beach | 2021/01/10 23:00 | Roberto Quiroz v Ivo Karlovic | 6-2,6-4 |
| ATP Delray Beach | 2021/01/08 23:00 | Ivo Karlovic v Pablo Andujar | 6-3,5-7,6-4 |
| ATP Cologne | 2020/10/10 09:00 | Ivo Karlovic v Marc Polmans | 1-6,4-6 |
| French Open | 2020/09/23 11:20 | Benjamin Bonzi v Ivo Karlovic | 6-3,7-6 |
| French Open | 2020/09/21 13:40 | Noah Rubin v Ivo Karlovic | 6-7,4-6 |
| US Open | 2020/09/01 23:30 | Ivo Karlovic v Richard Gasquet | 6-7,6-7,1-6 |
| Matchplay 120 | 2020/06/12 13:00 | JC Aragone v Ivo Karlovic | 7-6,7-5 |
| Challenger Calgary | 2020/02/27 19:15 | Ivo Karlovic v Geoffrey Blancaneaux | 6-7,4-6 |