| Name: | Mathias J Breistein |
| Federation: |  |
| Years: | 2005 - 2005 |
| Total Games: | 5 |
| Wins: | 2 (40 %) |
| Draws: | 1 (20 %) |
| Losses: | 2 (40 %) |
| Score: | 50 % |
| Tournament | Date | Elo Avg. | Country |
| NOR-ch U20 | 09/09/2005 | 932 |  Norway |
| ECO | Opening | Games |
| A36 | English, symmetrical variation | 1 games |
| C80 | Ruy Lopez, open (Tarrasch) defence | 1 games |
| C60 | Ruy Lopez (Spanish opening) | 1 games |
| C66 | Ruy Lopez, Berlin defence, 4.O-O, d6 | 1 games |
| ECO | Opening | Games |
| C01 | French, exchange variation | 1 games |
| White | ELO W | Black | ELO B | Result | Moves | ECO | Date | Tournament | View |
| Breistein, M | Jansen, A | 2256 | 1-0  |
28 | C66 | 2005 | NOR-ch U20 |
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| Breistein, M | Malou, S | 0-1 |
25 | C60 | 2005 | NOR-ch U20 |
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| Breistein, M | Grimsgaard, O | 1-0 |
17 | C80 | 2005 | NOR-ch U20 |
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| Faerevaag, E | 757 | Breistein, M | ½-½ |
20 | C01 | 2005 | NOR-ch U20 |
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| Breistein, M | Hobber, A | 1432 | 0-1 |
27 | A36 | 2005 | NOR-ch U20 |
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