Stadium: Court A Round: 14 Ground: Hardcourt indoor
| ITF M15 Sharm El Sheikh | 2021/11/18 09:50 | Neil Oberleitner v Duckhee Lee | 3-6,4-6 |
| Challenger Hagen | 2025/07/28 11:30 | Neil Oberleitner v Alexander Donski | 7-6,6-7,6-7 |
| Challenger Hagen | 2025/07/27 15:05 | Neil Oberleitner v John Sperle | 6-4,6-4 |
| ATP Kitzbuhel | 2025/07/19 09:00 | Thiago Monteiro v Neil Oberleitner | 6-4,4-6,7-6 |
| Challenger Bunschoten | 2025/07/13 09:00 | Anton Matusevich v Neil Oberleitner | 6-3,7-5 |
| Challenger Trieste | 2025/07/07 11:50 | Sumit Nagal v Neil Oberleitner | 6-4,6-2 |
| Challenger Trieste | 2025/07/06 14:35 | Dusan Obradovic v Neil Oberleitner | 2-6,4-6 |
| Challenger Troyes | 2025/06/30 08:30 | Neil Oberleitner v Cosme Rolland De Ravel | 3-6,1-6 |
| Challenger Troyes | 2025/06/29 09:20 | Neil Oberleitner v Maxence Beauge | 6-4,7-5 |
| ITF M15 Wuning | 2025/07/29 04:30 | Duckhee Lee v Fnu Nidunjianzan | 6-2,1-6,7-5 |
| ITF M15 Wuning | 2025/07/26 01:00 | Sanhui Shin v Duckhee Lee | 6-4,6-4 |
| ITF M15 Wuning | 2025/07/25 01:00 | Yaojie Zeng v Duckhee Lee | 5-7,6-7 |
| ITF M15 Wuning | 2025/07/24 01:00 | Lachlan Mcfadzean v Duckhee Lee | 2-6,2-5 |
| ITF M15 Wuning | 2025/07/23 08:40 | Zijiang Yang v Duckhee Lee | 2-6,2-6 |
| ITF M15 Tokyo | 2025/07/08 05:18 | Colin Sinclair v Duckhee Lee | 4-6,6-2,3-0 |
| ITF M15 Tokyo | 2025/07/02 02:30 | Duckhee Lee v Saki Tange | 4-6,1-6 |
| ITF M25 Changwon | 2025/06/04 01:00 | Yuki Mochizuki v Duckhee Lee | 6-1,6-1 |