| Challenger Ismaning | 10/17 08:00 | - | Luca Vanni v Daniel Masur | View | |
| Challenger Ismaning | 10/15 14:20 | 25 | [374] Jelle Sels v Daniel Masur [235] | 7-5,4-6,4-6 | |
| Challenger Mouilleron le Captif | 10/09 13:10 | 25 | [236] Daniel Masur v Jiri Vesely [128] | 4-6,6-3,6-7 | |
| Challenger Mouilleron le Captif | 10/08 10:20 | 24 | [323] Hugo Grenier v Daniel Masur [236] | 4-6,6-3,4-6 | |
| ITF M25 Ricany | 09/28 10:15 | 28 | [243] Daniel Masur v Michael Vrbensky [318] | 6-4,5-7,6-7 | |
| ITF M25 Ricany | 09/27 08:40 | 27 | [243] Daniel Masur v Jonas Forejtek [367] | 6-1,6-0 | |
| ITF M25 Ricany | 09/26 09:00 | 26 | Daniel Masur v Dominik Langmajer | 6-1,6-1 | |
| ITF M25 Ricany | 09/25 09:30 | 25 | Daniel Masur v Daniel Paty | 6-1,6-4 | |
| Challenger Glasgow | 09/20 13:50 | 27 | [247] Daniel Masur v Ramkumar Ramanathan [179] | 5-7,6-7 | |
| Challenger Glasgow | 09/19 14:20 | 26 | [180] Quentin Halys v Daniel Masur [247] | 6-7,6-7 | |
| Challenger Glasgow | 09/17 11:25 | 25 | [417] Evan Furness v Daniel Masur [247] | 4-6,3-6 | |
| Challenger Szczecin | 09/11 09:45 | 25 | Constant Lestienne v Daniel Masur | 6-2,6-3 | |
| Challenger Szczecin | 09/10 13:45 | 24 | Daniel Masur v Piotr Galus | 6-3,7-6 | |
| Challenger Cassis | 09/05 14:45 | 26 | [318] Daniel Masur v Mikael Ymer [107] | 2-6,6-7 | |
| Challenger Cassis | 09/04 08:00 | 25 | [177] Ramkumar Ramanathan v Daniel Masur [318] | 3-6,2-6 | |
| Challenger Cassis | 09/03 10:35 | 24 | [318] Daniel Masur v Tobias Kamke [231] | 6-3,6-4 | |
| Challenger Mallorca | 08/31 15:30 | 28 | [240] Matteo Viola v Daniel Masur [318] | 7-6,4-6,6-2 | |
| Challenger Mallorca | 08/30 12:45 | 27 | [430] Illya Marchenko v Daniel Masur [318] | 6-7,2-6 | |
| Challenger Mallorca | 08/29 09:00 | 26 | [255] Lucas Miedler v Daniel Masur [318] | 6-2,4-6,6-7 | |
| Challenger Mallorca | 08/28 09:15 | 25 | [318] Daniel Masur v Matthias Bachinger [113] | 2-6,6-0,6-4 | |
| Challenger Mallorca | 08/27 16:00 | 24 | [318] Daniel Masur v Cem Ilkel [261] | 6-3,6-4 | |
| ITF M25 Schlieren | 08/25 12:00 | 29 | [375] Benjamin Bonzi v Daniel Masur [318] | 4-6,2-6 | |
| ITF M25 Schlieren | 08/24 12:00 | 28 | [403] Laurynas Grigelis v Daniel Masur [318] | 4-6,3-6 | |
| ITF M25 Schlieren | 08/23 15:20 | 27 | Mirko Martinez v Daniel Masur | 0-6,3-6 | |
| ITF M25 Schlieren | 08/22 11:55 | 26 | Jerome Kym v Daniel Masur | 0-6,2-6 | |
| ITF M25 Schlieren | 08/21 08:00 | 25 | Bart Stevens v Daniel Masur | 6-3,3-6,4-6 | |
| ATP Hamburg | 07/20 11:00 | 64 | [94] Hugo Dellien v Daniel Masur [253] | 4-6,6-2,7-5 | |
| Challenger Amersfoort | 07/19 11:15 | 27 | [253] Daniel Masur v Kimmer Coppejans [144] | 6-2,4-6,4-6 | |
| Challenger Amersfoort | 07/18 09:00 | 26 | [225] Elliot Benchetrit v Daniel Masur [253] | 2-6,2-6 | |
| Challenger Amersfoort | 07/17 12:35 | 25 | Holger Vitus Nodskov Rune v Daniel Masur | 6-3,4-6,1-6 |