Round: 25 Ground: Hardcourt outdoor
| Challenger Shanghai | 2015/09/08 02:00 | Tatsuma Ito v Thomas Fabbiano | 7-6,4-6,3-6 |
| US Open Qual | 2015/08/25 15:00 | Tatsuma Ito v Aslan Karatsev | 3-6,5-7 |
| ATP Cincinnati Qual | 2015/08/15 20:55 | Vasek Pospisil v Tatsuma Ito | 6-3,6-2 |
| ATP Newport | 2015/07/16 19:45 | John-Patrick Smith v Tatsuma Ito | 6-3,6-7,6-3 |
| ATP Newport | 2015/07/15 16:35 | Tatsuma Ito v Steve Johnson | 6-4,6-4 |
| ATP Newport | 2015/07/13 18:25 | Noah Rubin v Tatsuma Ito | 3-6,7-6,4-6 |
| Wimbledon Qual | 2015/06/24 10:00 | Tatsuma Ito v Hiroki Moriya | 7-6,6-7,5-7 |
| Wimbledon Qual | 2015/06/22 10:00 | Tatsuma Ito v Giovanni Lapentti | 7-5,4-6,6-3 |
| Challenger Shanghai | 2015/09/08 05:30 | Daniil Medvedev v Duckhee Lee | 6-4,6-0 |
| ITF China F13 | 2015/08/16 01:30 | Duckhee Lee v Di Wu | 6-2,6-3 |
| ITF China F13 | 2015/08/11 06:00 | Duckhee Lee v Yuqing Ning | 6-0,6-0 |
| ITF China F12 | 2015/08/08 03:05 | Arata Onozawa v Duckhee Lee | 6-2,0-6,6-4 |
| ITF China F12 | 2015/08/07 07:00 | Duckhee Lee v Aoxiong Wang | 6-4,6-1 |
| ITF China F12 | 2015/08/04 01:30 | Duckhee Lee v Cheng-Yu Yu | 6-2,7-6 |
| Challenger Padova | 2015/07/02 18:30 | Marco Cecchinato v Duckhee Lee | 6-2,6-2 |
| Challenger Padova | 2015/06/30 08:00 | Nicolas Kicker v Duckhee Lee | 1-6,2-6 |