Stadium: Court 3 Round: 46
| Challenger Seoul | 2017/05/11 02:00 | Austin Krajicek v Alexander Sarkissian | 1-6,2-6 |
| Challenger Seoul | 2017/05/10 01:30 | Austin Krajicek v Seong Chan Hong | 7-6,6-3 |
| Challenger Seoul Qual | 2017/05/08 03:30 | Lucas Miedler v Austin Krajicek | 6-7,3-6 |
| Challenger Seoul Qual | 2017/05/07 03:35 | Edward Corrie v Austin Krajicek | 2-6,4-6 |
| Challenger Seoul Qual | 2017/05/06 02:40 | Ki Su Jung v Austin Krajicek | 1-6,2-6 |
| Challenger Gimcheon | 2017/05/02 04:20 | Go Soeda v Austin Krajicek | 7-6,6-2 |
| Challenger Gimcheon Qual | 2017/05/01 02:00 | Austin Krajicek v Lloyd Glasspool | 6-4,5-7,6-4 |
| Challenger Gimcheon Qual | 2017/04/30 03:50 | Austin Krajicek v Felix Auger Aliassime | 4-6,7-6,7-6 |
| Challenger Busan Qual | 2017/05/13 03:45 | Bradley Mousley v Frederik Nielsen | 4-6,3-6 |
| Challenger Seoul Qual | 2017/05/06 01:00 | Frederik Nielsen v Felix Auger Aliassime | 1-6,4-6 |
| Challenger Gimcheon Qual | 2017/04/29 05:15 | Lloyd Glasspool v Frederik Nielsen | 6-7,6-2,6-2 |
| Davis Cup | 2017/04/09 10:00 | Casper Ruud v Frederik Nielsen | 4-6,2-6,3-6 |
| Davis Cup | 2017/04/07 16:15 | Viktor Durasovic v Frederik Nielsen | 2-6,6-3,2-6,6-7 |
| Challenger St Brieuc Qual | 2017/03/27 14:35 | Frederik Nielsen v Egor Gerasimov | 7-6,2-6,0-6 |
| Challenger St Brieuc Qual | 2017/03/26 14:00 | Gregoire Jacq v Frederik Nielsen | 5-7,6-7 |
| Challenger St Brieuc Qual | 2017/03/26 09:00 | Rameez Junaid v Frederik Nielsen | 6-7,6-4,2-6 |