| Challenger Porto | 07/04 14:45 | 25 | [217] Antoine Bellier v Jason Jung [265] | 6-3,2-6,6-4 | |
| Challenger Malaga | 06/29 11:50 | 26 | [149] Constant Lestienne v Jason Jung [265] | 6-1,6-3 | |
| Challenger Malaga | 06/28 08:30 | 25 | [430] Daniel Cukierman v Jason Jung [265] | 2-6,5-7 | |
| Wimbledon | 06/23 10:00 | 19 | [104] Marc-Andrea Huesler v Jason Jung [263] | 7-5,6-4,3-6,3-6,6-2 | |
| Wimbledon | 06/22 12:35 | 19 | [263] Jason Jung v Illya Marchenko [275] | 7-6,6-2 | |
| Wimbledon | 06/20 11:35 | 14 | [263] Jason Jung v Filip Misolic [210] | 6-2,3-6,6-2 | |
| Challenger Ilkley | 06/13 10:00 | 19 | [431] Charles Broom v Jason Jung [262] | 7-6,6-4 | |
| Challenger Ilkley | 06/12 13:30 | 14 | [249] Jason Jung v Matheus P De Almeida [221] | 6-4,1-6,7-5 | |
| Challenger Nottingham | 06/07 14:20 | 25 | [192] Borna Gojo v Jason Jung [249] | 6-2,7-6 | |
| Challenger Nottingham | 06/06 13:20 | 19 | Jason Jung v Giles Hussey | 6-3,7-6 | |
| Challenger Nottingham | 06/05 18:00 | 14 | [255] Jason Jung v Henry Patten [320] | 7-5,6-4 | |
| Challenger Surbiton | 05/30 10:00 | 19 | [170] Max Purcell v Jason Jung [256] | 4-6,6-4,6-4 |