Stadium: C Round: 45 Ground: Hardcourt outdoor
| Challenger Alphen Qual | 2017/09/03 10:15 | Ruan Roelofse v Ben Patael | 2-6,3-6 |
| Challenger Aptos Qual | 2017/08/05 21:05 | Ruan Roelofse v Marinko Matosevic | 2-6,4-6 |
| Challenger Aptos Qual | 2017/08/05 17:30 | Ruan Roelofse v Brian Brogan | 6-3,6-1 |
| Challenger Lexington Qual | 2017/07/29 15:40 | Ruan Roelofse v Mark Verryth | 3-6,4-6 |
| Challenger Busan Qual | 2017/05/14 04:35 | Ruan Roelofse v Edward Corrie | 4-6,1-6 |
| Challenger Busan Qual | 2017/05/13 06:00 | Jackson Withrow v Ruan Roelofse | 4-6,6-3,6-7 |
| Challenger Anning Qual | 2017/04/22 02:00 | Ruan Roelofse v Felix Auger Aliassime | 7-6,6-7,2-6 |
| Challenger - Taipei | 2017/04/19 05:30 | Prajnesh Gunneswaran v Ruan Roelofse | 7-6,6-4 |
| ITF USA F32 | 2017/09/27 17:00 | Karue Sell v Naoki Nakagawa | 6-3,7-5 |
| ITF USA F31 | 2017/09/20 19:10 | Ronnie Schneider v Naoki Nakagawa | 6-2,6-3 |
| ITF Canada F5 | 2017/08/30 18:20 | Naoki Nakagawa v Jacob Dunbar | 4-6,2-6 |
| ITF Canada F5 | 2017/08/28 16:30 | Naoki Nakagawa v Deiton Baughman | 7-6,6-3 |
| Challenger Santo Domingo Qual | 2017/08/13 15:00 | Carlos Boluda-Purkiss v Naoki Nakagawa | 6-4,6-0 |
| Challenger Santo Domingo Qual | 2017/08/12 15:00 | Jasel Beltre v Naoki Nakagawa | 3-6,3-6 |
| Challenger Floridablanca | 2017/08/08 16:00 | Naoki Nakagawa v Oscar Jose Gutierrez | 2-6,3-6 |
| Challenger Granby Qual | 2017/07/23 17:50 | Mark Verryth v Naoki Nakagawa | 6-3,6-2 |