Round: 26 Ground: Grass
| ATP Houston Qual | 2015/04/04 16:45 | Thiago Monteiro v Harrison, Ryan | 4-6,7-6,6-2 |
| ATP - Miami | 2015/03/26 22:45 | Harrison, Ryan v Melzer, Jurgen | 6-7,3-6 |
| ATP Memphis | 2015/02/11 22:30 | Kei Nishikori v Harrison, Ryan | 3-6,6-3,6-4 |
| ATP Memphis | 2015/02/10 18:50 | Harrison, Ryan v Jaziri, Malek | 7-6,7-6 |
| Challenger Dallas | 2015/02/04 21:40 | Smyczek, Tim v Harrison, Ryan | 6-2,3-6,6-1 |
| Challenger Dallas | 2015/02/04 04:00 | Williams, Rhyne v Harrison, Ryan | 6-7,2-6 |
| Challenger Knoxville | 2014/11/05 23:30 | Harrison, Ryan v Adrian Mannarino | 1-6,1-6 |
| Challenger Charlottesville | 2014/10/31 20:50 | Harrison, Ryan v Liam Broady | 7-6,6-7,3-6 |
| ATP Houston Qual | 2015/04/04 16:30 | Tatsuma Ito v Dutra Silva, Rogerio | 6-4,5-7,6-7 |
| Miami, USA, Qualifying | 2015/03/23 14:00 | Tatsuma Ito v Berrer, Michael | 3-6,7-6,3-6 |
| ATP - Genève | 2014/10/29 15:30 | Przysiezny, Michal v Tatsuma Ito | 6-1,6-4 |
| ATP - Genève | 2014/10/28 10:00 | Yoshihito Nishioka v Tatsuma Ito | 6-7,2-6 |
| Challenger Shanghai Qual | 2014/10/04 06:50 | Yan Bai v Tatsuma Ito | 1-6,3-6 |
| US Open, New York, USA | 2014/08/29 15:00 | Lopez, Feliciano v Tatsuma Ito | 6-4,3-6,6-4,7-6 |
| US Open, New York, USA, Qualifying | 2014/08/22 21:15 | Tatsuma Ito v Przysiezny, Michal | 6-4,6-4 |
| US Open, New York, USA, Qualifying | 2014/08/20 22:45 | Tatsuma Ito v Frances Tiafoe | 7-6,4-6,6-3 |