Stadium: Hard 17 Round: 27 Ground: Hardcourt outdoor
| ITF M15 Monastir | 2023/07/18 10:20 | Kody Pearson v Matthew William Donald | 6-1,6-2 |
| ITF M15 Wroclaw | 2023/06/29 08:00 | Matthew William Donald v Sergey Fomin | 2-6,6-4,2-6 |
| ITF M15 Wroclaw | 2023/06/28 09:40 | Fryderyk Lechno-Wasiutynski v Matthew William Donald | 6-4,3-6,4-6 |
| ITF M15 Store | 2023/06/21 11:00 | Lorenzo Bocchi v Matthew William Donald | 6-4,6-4 |
| ITF M25 Jablonec Nad Nisou | 2023/05/31 09:30 | Matthew William Donald v Michael Vrbensky | 6-7,1-6 |
| ITF M25 Jablonec Nad Nisou | 2023/05/30 09:30 | Matthew William Donald v Lukas Janousek | 6-0,6-2 |
| ITF M25 Jablonec Nad Nisou | 2023/05/28 10:30 | Matthew William Donald v Julian Peter | 6-1,6-0 |
| ITF M25 Most | 2023/05/24 09:35 | Mats Moraing v Matthew William Donald | 6-2,6-0 |
| Challenger Amersfoort | 2023/07/16 13:05 | Alex M Pujolras v Oleg Prihodko | 6-4,7-6 |
| UTR Pro Olomouc | 2023/07/09 08:38 | Oleg Prihodko v Dominik Suc | 6-1,0-0 |
| UTR Pro Olomouc | 2023/07/08 07:30 | Oleg Prihodko v Anthony Wright | 6-0,6-2 |
| UTR Pro Olomouc | 2023/07/06 06:00 | Oleg Prihodko v Artem Podorozhnyi | 3-6,6-2,6-1 |
| UTR Pro Olomouc | 2023/07/05 08:05 | Christos Keisidis v Oleg Prihodko | 2-6,1-6 |
| UTR Pro Olomouc | 2023/07/04 10:15 | Janos Fekete v Oleg Prihodko | 6-7,6-0,1-6 |
| Challenger Medellin | 2023/06/26 18:00 | Andres Urrea v Oleg Prihodko | 4-6,7-6,6-3 |
| Challenger Cali | 2023/06/18 16:00 | Gonzalo Lama v Oleg Prihodko | 3-6,6-3,7-5 |