| Name: | Marcio Adelino Dos Sousa |
| Federation: |  |
| Years: | 2003 - 2003 |
| Total Games: | 7 |
| Wins: | 5 (71.43 %) |
| Draws: | 0 (0 %) |
| Losses: | 2 (28.57 %) |
| Score: | 71.43 % |
| Tournament | Date | Elo Avg. | Country |
| POR-ch U18 | ??/??/2003 | 566 |  Portugal |
| ECO | Opening | Games |
| C50 | King's pawn game | 1 games |
| C43 | Petrov, modern (Steinitz) attack | 1 games |
| B26 | Sicilian, closed, 6.Be3 | 1 games |
| B03 | Alekhine's defence | 1 games |
| ECO | Opening | Games |
| B12 | Caro-Kann defence | 1 games |
| B11 | Caro-Kann, two knights, 3...Bg4 | 1 games |
| B17 | Caro-Kann, Steinitz variation | 1 games |
| White | ELO W | Black | ELO B | Result | Moves | ECO | Date | Tournament | View |
| Sousa, M | 1770 | Elias, R | 1-0  |
23 | C50 | 2003 | POR-ch U18 |
|
|
| Sousa, M | Sousa, E | 1-0 |
34 | C43 | 2003 | POR-ch U18 |
|
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| Sousa, M | 1770 | Azevedo, R | 1650 | 0-1 |
50 | B26 | 2003 | POR-ch U18 |
|
| Sousa, M | 1770 | Oliveira, L | 1655 | 1-0 |
17 | B03 | 2003 | POR-ch U18 |
|
| Morais, P | Sousa, M | 0-1 |
51 | B12 | 2003 | POR-ch U18 |
|
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| Viela, M | 2080 | Sousa, M | 1770 | 1-0 |
25 | B11 | 2003 | POR-ch U18 |
|
| Verissimo, A | 1620 | Sousa, M | 1770 | 0-1 |
62 | B17 | 2003 | POR-ch U18 |
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