| Name: | Maria Kosiorek |
| Federation: |  |
| Years: | 2001 - 2001 |
| Total Games: | 11 |
| Wins: | 2 (18.18 %) |
| Draws: | 3 (27.27 %) |
| Losses: | 6 (54.55 %) |
| Score: | 31.82 % |
| Tournament | Date | Elo Avg. | Country |
| POL-chT U20 2nd div | ??/??/2001 | 666 |  Poland |
| ECO | Opening | Games |
| B33 | Sicilian defence | 1 games |
| B62 | Sicilian, Richter-Rauzer, 6...e6 | 1 games |
| B28 | Sicilian, O'Kelly variation | 1 games |
| C01 | French, exchange variation | 1 games |
| ECO | Opening | Games |
| B32 | Sicilian defence | 2 games |
| B25 | Sicilian, closed | 1 games |
| B00 | King's pawn opening | 1 games |
| D02 | Queen's pawn game | 1 games |
| White | ELO W | Black | ELO B | Result | Moves | ECO | Date | Tournament | View |
| Kosiorek, M | Gramcow, D | 1-0  |
19 | B33 | 2001 | POL-chT U20 2nd div |
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| Kosiorek, M | Skrochocka, J | 2050 | 0-1 |
23 | B62 | 2001 | POL-chT U20 2nd div |
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| Kosiorek, M | Niespielak, K | ½-½ |
24 | B28 | 2001 | POL-chT U20 2nd div |
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| Kosiorek, M | Kubicka, I | 1-0 |
22 | C01 | 2001 | POL-chT U20 2nd div |
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| Kosiorek, M | Kasperek, J | ½-½ |
20 | B34 | 2001 | POL-chT U20 2nd div |
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| Smolak, E | 2040 | Kosiorek, M | 1-0 |
20 | B25 | 2001 | POL-chT U20 2nd div |
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| Tadych, A | 2075 | Kosiorek, M | 1-0 |
20 | B32 | 2001 | POL-chT U20 2nd div |
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| Zajac, M | 2070 | Kosiorek, M | 1-0 |
20 | B32 | 2001 | POL-chT U20 2nd div |
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| Krokay, U | Kosiorek, M | 1-0 |
22 | B00 | 2001 | POL-chT U20 2nd div |
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| Paterek, K | Kosiorek, M | ½-½ |
20 | D02 | 2001 | POL-chT U20 2nd div |
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| Juszczak, A | 2025 | Kosiorek, M | 1-0 |
24 | D52 | 2001 | POL-chT U20 2nd div |
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