| ITF - M15 Sharm El Sheikh | 02/07 14:30 | 26 | Maamoun, Karim-Mohamed v Neil Oberleitner | 6-3,6-2 | |
| ITF - M15 Sharm El Sheikh | 02/06 08:00 | 25 | Maamoun, Karim-Mohamed v Cizelj-Zivkovic, Stefan | 6-0,6-1 | |
| ITF - M15 Sharm El Sheikh | 02/03 08:00 | 29 | Kobelt, Peter v Maamoun, Karim-Mohamed | 1-6,6-7 | |
| ITF - M15 Sharm El Sheikh | 02/02 08:00 | 28 | [487] Maamoun, Karim-Mohamed v Shintaro Imai [424] | 6-3,6-2 | |
| ITF - M15 Sharm El Sheikh | 02/01 08:00 | 27 | Lukas Klein v Maamoun, Karim-Mohamed | 4-6,1-6 | |
| ITF - M15 Sharm El Sheikh | 01/31 08:00 | 26 | [261] Benjamin Lock v Maamoun, Karim-Mohamed [487] | 2-6,3-6 | |
| ITF - M15 Sharm El Sheikh | 01/30 08:00 | 25 | Michiel de Krom v Maamoun, Karim-Mohamed | 6-7,1-6 | |
| ITF - M15 Sharm El Sheikh | 01/27 13:15 | 29 | Vivero Gonzalez, Pablo v Karim-Mohamed Maamoun | 7-6,3-6,4-6 | |
| ITF - M15 Sharm El Sheikh | 01/26 08:00 | 28 | Karim-Mohamed Maamoun v Lukas Klein | 7-5,7-5 | |
| ITF - M15 Sharm El Sheikh | 01/25 08:00 | 27 | David Poljak v Karim-Mohamed Maamoun | 1-6,6-3,3-6 | |
| ITF - M15 Sharm El Sheikh | 01/24 09:45 | 26 | Kobelt, Peter v Karim-Mohamed Maamoun | 2-6,3-6 | |
| ITF - M15 Sharm El Sheikh | 01/23 08:00 | 25 | Hajek, Petr v Karim-Mohamed Maamoun | 2-6,2-6 | |
| ITF Egypt F25 | 11/04 08:00 | 29 | Zhurbin, Alexander v Karim-Mohamed Maamoun | 7-6,6-2 | |
| ITF Egypt F25 | 11/03 08:00 | 28 | [424] Karim-Mohamed Maamoun v Vladyslav Orlov [303] | 6-2,6-2 | |
| ITF Egypt F25 | 11/02 08:00 | 27 | Igoshin, Alexander v Karim-Mohamed Maamoun | 2-6,5-7 | |
| ITF Egypt F25 | 11/01 10:30 | 26 | Sergei Pogosian v Karim-Mohamed Maamoun | 1-6,0-6 | |
| ITF Egypt F25 | 10/31 08:00 | 25 | [497] Michiel de Krom v Karim-Mohamed Maamoun [424] | 7-6,4-6,3-6 | |
| ITF Egypt F24 | 10/28 08:00 | 29 | [454] Karim-Mohamed Maamoun v Erler, Alexander [424] | 4-6,6-1,6-4 | |
| ITF Egypt F24 | 10/27 08:00 | 28 | Igoshin, Alexander v Karim-Mohamed Maamoun | 1-6,1-6 | |
| ITF Egypt F24 | 10/26 08:00 | 27 | Karim-Mohamed Maamoun v Philp, Samuel | 6-1,6-0 | |
| ITF Egypt F24 | 10/25 08:55 | 26 | Karim-Mohamed Maamoun v Omni Kumar | 6-1,6-3 | |
| ITF Egypt F24 | 10/24 08:00 | 25 | Karim-Mohamed Maamoun v Stoute, Isaac | 7-5,6-1 | |
| ITF Egypt F23 | 10/21 08:00 | 29 | Pauffley, Neil v Maamoun, Karim-Mohamed | 3-6,4-6 | |
| ITF Egypt F23 | 10/20 10:00 | 28 | Caruana, Liam v Karim-Mohamed Maamoun | Walkover | |
| ITF Egypt F23 | 10/19 08:00 | 27 | Bulitski, Aliaksandr v Karim-Mohamed Maamoun | 2-6,4-6 | |
| ITF Egypt F23 | 10/18 08:00 | 26 | Moundir, Adam v Maamoun, Karim-Mohamed | 6-7,5-7 | |
| ITF Egypt F23 | 10/17 08:00 | 25 | Sabanin, Yan v Karim-Mohamed Maamoun | 1-6,1-6 | |
| ITF Lebanon F2 | 10/05 15:45 | 27 | [459] Maamoun, Karim-Mohamed v Alexandre Muller [397] | 6-3,1-6,6-7 | |
| ITF Lebanon F2 | 10/04 17:00 | 26 | Maamoun, Karim-Mohamed v Roey Tabet | 6-2,6-1 | |
| ITF Lebanon F2 | 10/02 14:35 | 25 | Maamoun, Karim-Mohamed v Suntic, Sabit | 6-1,6-1 |
Karim-Mohamed Maamoun (born 9 April 1991 in Cairo) is an Egyptian tennis player. Maamoun has a career high ATP singles ranking of 225 achieved on 2 October 2017. Maamoun has represented Egypt at the Davis Cup where he has a W/L record of 17–9.