| Open d'Australie | 01/11 07:30 | 60 | [232] Harris, Andrew v Bemelmans, Ruben [225] | 6-4,5-7,6-3 | |
| French Open, Paris, France | 09/24 12:15 | 19 | [223] Bemelmans, Ruben v Daniel Altmaier [185] | 3-6,6-1,3-6 | |
| French Open, Paris, France | 09/23 11:25 | 15 | Bemelmans, Ruben v Kyrian Jacquet | 6-4,6-3 | |
| French Open, Paris, France | 09/21 12:00 | 14 | [124] Jozef Kovalik v Bemelmans, Ruben [220] | 2-6,3-6 | |
| Challenger - Aix en Provence | 09/08 11:55 | 25 | [184] Elias Ymer v Bemelmans, Ruben [213] | 6-4,2-6,6-4 | |
| Challenger - Aix en Provence | 09/06 09:00 | 19 | [213] Bemelmans, Ruben v Hugo Gaston [231] | 6-7,5-7 | |
| Challenger - Aix en Provence | 09/05 08:00 | 64 | [194] Polansky, Peter v Bemelmans, Ruben [213] | 6-7,6-4,3-6 | |
| Challenger Prague 2 | 08/25 08:30 | 25 | [216] Bemelmans, Ruben v Pierre-Hugues Herbert [68] | 2-6,2-6 | |
| Challenger Prague 2 | 08/24 08:30 | 24 | [208] Elliot Benchetrit v Bemelmans, Ruben [215] | 5-7,2-6 | |
| Challenger - Prague | 08/16 08:30 | 24 | [378] Satral, Jan v Bemelmans, Ruben [215] | 7-5,7-5 | |
| Coupe Davis | 03/07 15:20 | 45 | [84] Marton Fucsovics v Bemelmans, Ruben [222] | 6-7,6-4,6-2 | |
| Coupe Davis | 03/06 15:00 | 45 | [76] Balazs, Attila v Bemelmans, Ruben [222] | 7-5,6-7,4-6 | |
| ITF - M25 Trente | 03/01 09:25 | 29 | Bemelmans, Ruben v Erler, Alexander | 4-6,6-2,6-4 | |
| ITF - M25 Trente | 02/29 13:25 | 28 | [226] Bemelmans, Ruben v Forti, Francesco [453] | 6-4,6-2 | |
| ITF - M25 Trente | 02/28 13:25 | 27 | [226] Bemelmans, Ruben v Nerman Fatic [362] | 6-2,6-7,6-2 | |
| ITF - M25 Trente | 02/27 12:15 | 26 | Bemelmans, Ruben v David Jorda Sanchis | 6-3,7-6 | |
| ITF - M25 Trente | 02/26 11:25 | 25 | Bemelmans, Ruben v Damien Wenger | 6-2,6-3 | |
| Challenger - Koblenz | 02/22 12:00 | 28 | [347] Tomas Machac v Bemelmans, Ruben [249] | 6-2,6-4 | |
| Challenger - Koblenz | 02/21 12:30 | 27 | [249] Bemelmans, Ruben v Yannick Hanfmann [149] | 6-3,6-2 | |
| Challenger - Koblenz | 02/20 12:30 | 26 | [193] Quentin Halys v Bemelmans, Ruben [249] | 2-6,4-6 | |
| Challenger - Koblenz | 02/19 11:40 | 25 | [403] Dubrivnyy, Artem v Bemelmans, Ruben [249] | 3-6,1-6 | |
| Challenger - Cherbourg | 02/13 22:10 | 26 | [251] Bemelmans, Ruben v Zverev, Mischa [272] | 2-6,4-6 | |
| Challenger - Cherbourg | 02/11 19:55 | 25 | [217] Tristan Lamasine v Bemelmans, Ruben [251] | 4-6,7-6,3-6 | |
| Challenger - Cherbourg | 02/10 13:15 | 24 | [251] Bemelmans, Ruben v Andrea Pellegrino [333] | 6-3,6-1 | |
| Challenger - Quimper | 01/28 17:30 | 24 | [260] Bemelmans, Ruben v Manuel Guinard [297] | 6-7,6-7 | |
| ITF - M25 Nussloch | 01/26 13:00 | 29 | [356] Jonas Forejtek v Bemelmans, Ruben [260] | 7-6,6-7,2-6 | |
| ITF - M25 Nussloch | 01/25 17:05 | 28 | [405] Ocleppo, Julian v Bemelmans, Ruben [260] | 6-7,6-3,6-7 | |
| ITF - M25 Nussloch | 01/24 19:00 | 27 | [431] Haerteis, Johannes v Bemelmans, Ruben [260] | 4-6,3-6 | |
| ITF - M25 Nussloch | 01/23 17:00 | 26 | Adrian Bodmer v Bemelmans, Ruben | 5-7,4-6 | |
| ITF - M25 Nussloch | 01/21 15:20 | 25 | [401] Kacper Zuk v Bemelmans, Ruben [260] | 3-6,3-6 |