Round: 25 Ground: Clay
| Challenger Shanghai | 2016/09/08 02:35 | Weintraub, Amir v Tatsuma Ito | 4-6,6-1,6-0 |
| ATP Halle Qual | 2016/06/12 10:00 | Tatsuma Ito v Sugita, Yuichi | 2-6,4-6 |
| ATP Halle Qual | 2016/06/11 09:00 | Lukas Rosol v Tatsuma Ito | 6-7,3-6 |
| French Open Qual | 2016/05/16 15:00 | Tatsuma Ito v Gojowczyk, Peter | 4-6,3-6 |
| Challenger Le Gosier | 2016/04/08 19:30 | Tatsuma Ito v Taylor Fritz | 7-6,4-6,4-6 |
| Challenger Le Gosier | 2016/04/06 19:30 | Tatsuma Ito v Ghem, Andre | 7-6,6-2 |
| Challenger Le Gosier | 2016/04/04 21:25 | Tatsuma Ito v Dubail, Julien | 6-2,6-7,6-4 |
| Challenger Leon | 2016/03/30 22:50 | Gonzalez, Alejandro v Tatsuma Ito | 6-4,7-5 |
| Challenger Nanchang Qual | 2016/09/11 03:00 | Sekiguchi, Shuichi v Nedunchezhiyan, Jeevan | 6-4,6-2 |
| Challenger Nanchang Qual | 2016/09/10 07:10 | Sekiguchi, Shuichi v Numajiri, Keisuke | 6-0,6-2 |
| Challenger Shanghai | 2016/09/08 01:10 | Sekiguchi, Shuichi v Kavcic, Blaz | 5-7,3-6 |
| Challenger Shanghai Qual | 2016/09/05 02:00 | Edan Leshem v Sekiguchi, Shuichi | 4-6,4-6 |
| Challenger Shanghai Qual | 2016/09/04 03:45 | Qi, Xi v Sekiguchi, Shuichi | 4-6,2-6 |
| Challenger Bangkok 4 | 2016/08/30 09:15 | Sekiguchi, Shuichi v Zhe Li | 6-7,3-6 |
| Challenger Astana 2 | 2016/07/25 09:25 | Sekiguchi, Shuichi v Jankovic, Miki | 1-6,2-6 |
| ITF Japan F6 | 2016/06/04 01:00 | Sekiguchi, Shuichi v Yasutaka Uchiyama | 3-6,3-6 |