| Date | Chess tournament name | Status | 
|---|---|---|
| 2025-03-04 to 2025-03-06 | 30th Sharjah International Chess Championship 2025 – Rapid ![]()  | 
                                                                                                Finished | 
| 2024-05-14 to 2024-05-22 | Sharjah Futures 2024 ![]()  | 
                                                                                                Finished | 
| 2024-03-16 to 2024-03-17 | 29th Sharjah International Chess Championship 2024 - Rapid ![]()  | 
                                                                                                Finished | 
| 2021-03-23 to 2021-03-31 | National Championship 27 ![]()  | 
                                                                                                Finished | 
| 2020-07-31 to 2020-08-02 | 2020 FIDE Online Olympiad Division 4 Pool C ![]()  | 
                                                                                                Finished | 
| 2020-07-22 to 2020-08-30 | 2020 FIDE Online Olympiad Entries ![]()  | 
                                                                                                Finished | 
| 2020-07-22 to 2020-08-30 | 2020 FIDE Online Olympiad Division 4 ![]()  | 
                                                                                                Finished | 
| 2019-03-20 to 2019-03-20 | National Championship Rapid ![]()  | 
                                                                                                Finished | 
| 2019-03-15 to 2019-03-25 | Sudan Final Championship ![]()  | 
                                                                                                Finished | 
| 2019-02-12 to 2019-02-19 | Sudan Cup Championship 2019 ![]()  | 
                                                                                                Finished | 
| 2019-01-31 to 2019-02-07 | Aljazeera Championship ![]()  | 
                                                                                                Finished | 
| 2018-01-27 to 2018-02-03 | Arab Indv. Chess CH. 2017. U16 Open ![]()  | 
                                                                                                Finished | 
| Date | Players & Opening | Result | ECO | View | 
|---|---|---|---|---|
| 2020.08.02 | Al Busaidi, Hamood (1371)  vs (1833) Mansoor Abdalla, Abdalla 2020 FIDE Online Olympiad King's Knight - Ponziani Jaenisch (Modern)  | 
                                                                                                                                                0-1 | C44 | |
| 2020.08.02 | Eyetonghan, Denyefa Callistus (2034)  vs (1833) Mansoor Abdalla, Abdalla 2020 FIDE Online Olympiad Queen's Gambit Albin  | 
                                                                                                                                                1-0 | D08 | |
| 2020.08.01 | Mansoor Abdalla, Abdalla (1833)  vs (1698) Tsephe, Lebajoa 2020 FIDE Online Olympiad Sicilian Closed - Zukertort  | 
                                                                                                                                                1/2-1/2 | B23 | |
| 2020.08.01 | Kalanmbo, Praise vs (1833) Mansoor Abdalla, Abdalla 2020 FIDE Online Olympiad Indian  | 
                                                                                                                                                0-1 | A45 | |
| 2020.08.01 | Mansoor Abdalla, Abdalla (1833)  vs (2006) Abrha, Robel Brhane 2020 FIDE Online Olympiad French Classical - Queen's Knight  | 
                                                                                                                                                1/2-1/2 | C14 | |
| 2020.07.31 | Mohamed Abderrahim, Taleb Mohamed (1811)  vs (1833) Mansoor Abdalla, Abdalla 2020 FIDE Online Olympiad Four Knights - Scotch  | 
                                                                                                                                                1/2-1/2 | C47 | |
| 2020.07.31 | Mansoor Abdalla, Abdalla (1833)  vs (1735) Salman, Samer 2020 FIDE Online Olympiad Sicilian Closed - Zukertort  | 
                                                                                                                                                0-1 | B23 | |
| 2018.02.01 | Sharata, Amir Ahmed vs Abdalla, Mansoor Abdalla Arab Indv. Chess CH. 2017. U16 Open Indian  | 
                                                                                                                                                0-1 | A45 | |
| 2018.01.30 | Abdalla, Mansoor Abdalla vs Al Hadidi, Ahmed Khalid Arab Indv. Chess CH. 2017. U16 Open Sicilian Alapin  | 
                                                                                                                                                1-0 | B22 | |
| 2018.01.29 | Abdalla, Mansoor Abdalla vs (2102) Loay, Sameer Arab Indv. Chess CH. 2017. U16 Open Pirc - Lizard  | 
                                                                                                                                                0-1 | B06 | |
| 2018.01.28 | Aladsani, Samer (1717)  vs Abdalla, Mansoor Abdalla Arab Indv. Chess CH. 2017. U16 Open Budapest - Fajarowicz  | 
                                                                                                                                                1/2-1/2 | A51 | |
| 2018.01.28 | Abdalla, Mansoor Abdalla vs Shalghum, Mustafa Arab Indv. Chess CH. 2017. U16 Open Italian - Semi-Italian  | 
                                                                                                                                                1-0 | C50 | 
| Date | Players & Opening | Result | ECO | View | 
|---|---|---|---|---|
| 2020.08.01 | Kalambo Praise vs (1781) Abdalla Mansoor Abdalla Online Olym Div4 C 2020 Indian  | 
                                                                                                                                                0-1 | A45 | |
| 2020.08.01 | Abdalla Mansoor Abdalla (1781) vs (1698) Tsephe, Lebajoa Online Olym Div4 C 2020 Sicilian Closed - Zukertort  | 
                                                                                                                                                1/2-1/2 | B23 | |
| 2020.07.31 | Mohamed Abderrahim, Taleb Mohamed (1811) vs (1781) Abdalla Mansoor Abdalla Online Olym Div4 C 2020 Four Knights - Scotch  | 
                                                                                                                                                1/2-1/2 | C47 | |
| 2020.08.02 | Al Busaidi, Hamood (1651) vs (1781) Abdalla Mansoor Abdalla Online Olym Div4 C 2020 King's Knight - Ponziani Jaenisch (Modern)  | 
                                                                                                                                                0-1 | C44 | |
| 2020.07.31 | Abdalla Mansoor Abdalla (1781) vs (1741) Salman, Samer Online Olym Div4 C 2020 Sicilian Closed - Zukertort  | 
                                                                                                                                                0-1 | B23 | |
| 2020.08.01 | Abdalla Mansoor Abdalla (1781) vs (2033) Abrha, Robel Brhane Online Olym Div4 C 2020 French Classical - Queen's Knight  | 
                                                                                                                                                1/2-1/2 | C14 | |
| 2020.08.02 | Eyetonghan Denyefa Callistus (2048) vs (1781) Abdalla Mansoor Abdalla Online Olym Div4 C 2020 Queen's Gambit Albin  | 
                                                                                                                                                1-0 | D08 |