| ITF Egypt F9 | 03/15 08:00 | 26 | Karim-M Maamoun v Aidan Mchugh | Retired | |
| ITF Egypt F9 | 03/14 08:00 | 25 | Karim-M Maamoun v Dominic Weidinger | 6-1,6-1 | |
| ITF Egypt F8 | 03/11 08:00 | 29 | Lucas Miedler v Karim-Mohamed Maamoun | 6-3,6-4 | |
| ITF Egypt F8 | 03/10 08:00 | 28 | Lloyd Harris v Karim-Mohamed Maamoun | 6-4,6-7,4-6 | |
| ITF Egypt F8 | 03/09 08:00 | 27 | Lukas Klein v Karim-Mohamed Maamoun | 2-6,2-6 | |
| ITF Egypt F8 | 03/08 10:10 | 26 | Cristian Carli v Karim-Mohamed Maamoun | Retired | |
| ITF Egypt F8 | 03/07 08:00 | 25 | Kazuki Nishiwaki v Karim-Mohamed Maamoun | 6-7,1-6 | |
| ATP Dubai Qual | 02/24 08:10 | 26 | Karim-Mohamed Maamoun v Stefano Travaglia | 3-6,6-7 | |
| ITF Egypt F6 | 02/23 08:00 | 27 | Karim-Mohamed Maamoun v Germain Gigounon | 2-6,2-6 | |
| ITF Egypt F6 | 02/22 10:20 | 26 | Karim-Mohamed Maamoun v Enrico Dalla Valle | 6-3,6-3 | |
| ITF Egypt F6 | 02/21 08:00 | 25 | Karim-Mohamed Maamoun v Jaimee Floyd Angele | 6-3,7-5 | |
| Challenger Chennai | 02/13 04:30 | 25 | Jordan Thompson v Karim-Mohamed Maamoun | 6-4,6-2 | |
| Davis Cup | 02/03 08:00 | 1 | Karim-Mohamed Maamoun v Viktor Durasovic | 6-0,6-4 | |
| ITF Egypt F2 | 01/26 08:00 | 27 | Karim-Mohamed Maamoun v Thiemo De Bakker | 5-7,5-7 | |
| ITF Egypt F2 | 01/25 08:00 | 26 | Karim-Mohamed Maamoun v Jaroslav Pospisil | 6-4,6-2 | |
| ITF Egypt F2 | 01/24 08:00 | 25 | Karim-Mohamed Maamoun v Anis Ghorbel | 6-2,6-4 | |
| Challenger Koblenz | 01/17 12:20 | 25 | Karim-Mohamed Maamoun v Christopher Heyman | 3-6,3-6 | |
| Australian Open Qual | 01/11 05:20 | 45 | Karim-Mohamed Maamoun v Stephane Robert | Retired | |
| Australian Open Qual | 01/10 04:00 | 44 | Marcelo Arevalo v Karim-Mohamed Maamoun | 2-6,7-5,5-7 | |
| ITF Egypt F37 | 12/09 09:05 | 28 | Karim-M Maamoun v Enrique L-Perez | 2-6,6-3,1-6 | |
| ITF Egypt F37 | 12/08 08:00 | 27 | Karim-Mohamed Maamoun v Ronald Slobodchikov | 6-3,6-4 | |
| ITF Egypt F37 | 12/07 09:40 | 26 | Karim-M Maamoun v Sherif Sabry | Walkover | |
| ITF Egypt F37 | 12/06 10:45 | 25 | Karim-M Maamoun v Sergiu D Medesan | 6-0,6-1 | |
| ITF Egypt F36 | 12/01 09:55 | 27 | Karim-Mohamed Maamoun v Dante Gennaro | 5-7,5-7 | |
| ITF Egypt F36 | 11/30 11:50 | 26 | Karim-Mohamed Maamoun v Menelaos Efstathiou | 6-2,6-3 | |
| ITF Egypt F36 | 11/29 10:05 | 25 | Karim-M Maamoun v Giovani Samaha | 7-6,6-0 | |
| Challenger Pune | 11/13 06:30 | 25 | [235] Karim-M Maamoun v N.Sriram Balaji [352] | 4-6,2-6 | |
| Challenger Eckental | 10/30 13:00 | 25 | Karim-Mohamed Maamoun v Mirza Basic | 4-6,5-7 | |
| ITF Nigeria F5 | 10/20 11:30 | 28 | Pedja Krstin v Karim-Mohamed Maamoun | 7-6,6-3 | |
| ITF Nigeria F5 | 10/19 09:00 | 27 | Hugo Largo v Karim-Mohamed Maamoun | 1-6,0-6 |
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.