| ITF Lebanon F1 | 09/27 16:25 | 26 | Mora, Maxime v Karim-Mohamed Maamoun | 4-6,6-3,6-2 | |
| ITF Lebanon F1 | 09/25 13:00 | 25 | Nikita Mashtakov v Maamoun, Karim-Mohamed | 7-5,1-6,0-6 | |
| Coupe Davis | 09/15 11:55 | 1 | [373] Karim-Mohamed Maamoun v Emil Ruusuvuori [391] | 1-6,6-3,1-6 | |
| Coupe Davis | 09/14 11:25 | 1 | [373] Karim-Mohamed Maamoun v Heliovaara, Harri [330] | 3-6,2-6 | |
| ITF Italy F26 | 09/06 10:35 | 27 | [399] Karim-Mohamed Maamoun v Oscar Jose Gutierrez [412] | Retired | |
| ITF Italy F26 | 09/05 14:30 | 26 | Karim-Mohamed Maamoun v Fellin, Manfred | 6-2,6-0 | |
| ITF Italy F26 | 09/04 15:55 | 25 | Karim-Mohamed Maamoun v Kocevar-Desman, Tom | Retired | |
| ITF Hungary F7 | 09/02 13:00 | 29 | [294] Mate Valkusz v Maamoun, Karim-Mohamed [399] | 3-6,6-3,6-3 | |
| ITF Hungary F7 | 09/01 09:00 | 28 | [399] Maamoun, Karim-Mohamed v Jelle Sels [355] | 4-6,7-5,6-3 | |
| ITF Hungary F7 | 08/31 11:45 | 27 | Borsos, Gabor v Karim-Mohamed Maamoun | 6-4,3-6,5-7 | |
| ITF Hungary F7 | 08/30 08:30 | 26 | Dubrivnyy, Artem v Maamoun, Karim-Mohamed | Retired | |
| ITF Hungary F7 | 08/28 11:40 | 25 | Stanek, Robin v Maamoun, Karim-Mohamed | 3-6,4-6 | |
| Challenger - Gwangju | 08/16 06:00 | 26 | [299] Akira Santillan v Maamoun, Karim-Mohamed [356] | 6-3,6-2 | |
| Challenger - Gwangju | 08/14 08:25 | 25 | [402] Ehara, Hiroyasu v Maamoun, Karim-Mohamed [356] | 1-6,6-7 | |
| Segovia, Spain | 07/31 09:40 | 25 | [241] Nedelko, Ivan v Karim-Mohamed Maamoun [350] | 6-3,6-4 | |
| Challenger Segovia Qual | 07/30 12:00 | 54 | Karim-Mohamed Maamoun v Enzo Couacaud | 6-4,6-2 | |
| Challenger Segovia Qual | 07/29 14:30 | 46 | [351] Karim-Mohamed Maamoun v Nielsen, Frederik [65] | 7-6,3-6,6-2 | |
| Challenger Segovia Qual | 07/28 12:20 | 45 | Karim-Mohamed Maamoun v Kanar, Jonathan | 6-3,6-4 | |
| Challenger Padova Qual | 07/21 15:00 | 46 | Karim-Mohamed Maamoun v Velotti, Agustin | 6-7,4-6 | |
| ITF Nigeria F3 | 05/03 10:15 | 27 | [464] Moez Echargui v Karim-Mohamed Maamoun [336] | 6-3,7-6 | |
| ITF Nigeria F3 | 05/02 11:10 | 26 | Jomby, Tom v Karim-Mohamed Maamoun | 4-6,1-6 | |
| ITF Nigeria F3 | 05/01 09:00 | 25 | Kazuma Kawachi v Karim-Mohamed Maamoun | 4-6,2-6 | |
| Nigeria F2, Singles | 04/24 11:00 | 25 | [330] Karim-Mohamed Maamoun v Joao Menezes [499] | 3-6,0-6 | |
| Coupe Davis | 04/08 13:30 | 27 | Konigsfeldt, Christoffer v Karim-Mohamed Maamoun | Cancelled | |
| Coupe Davis | 04/07 10:00 | 27 | [243] Nielsen, Frederik v Maamoun, Karim-Mohamed [313] | 6-3,3-6,6-7 | |
| ITF Portugal F6 | 03/29 14:40 | 27 | Karim-Mohamed Maamoun v Stanek, Robin | 6-7,1-6 | |
| ITF Portugal F6 | 03/28 09:30 | 26 | [282] Karim-Mohamed Maamoun v Simon, Tobias [418] | 6-1,6-1 | |
| ITF Portugal F6 | 03/27 09:00 | 25 | Karim-Mohamed Maamoun v Tashi, Vullnet | 6-3,4-6,6-1 | |
| ITF Portugal F5 Qual | 03/22 10:00 | 26 | Karim-Mohamed Maamoun v Barbosa, Romain | 6-3,2-6,6-7 | |
| ITF Portugal F5 | 03/21 17:05 | 25 | Karim-Mohamed Maamoun v Rodrigues, Daniel | 6-2,6-2 |
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.