| U12 Gütersloher SV I | Ø:1014 | | 1. | Borgdorf,Eduard | 991 | | 2. | Betcher,Jannis | 1122 | | 3. | Neumann,Helena | 909 | | 4. | Kühn von Burgsdorff,Friedrich | 1034 |
| | U12 Gütersloher SV II | Ø:771 | | 1. | Töws,Nikita | 763 | | 2. | Schoppengerd,Sebastian | 778 | | 3. | Schlautmann,Karl | | | 4. | Jürging,Max | | | ||
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| 5. | Gadeiev,Isabella | | | 6. | Knezevic,Lenni | | | 7. | Kleinegesse,Julius | | | 8. | Moch,Victoria Sophie | |
| | U12 Rhedaer SV | Ø:894 | | 1. | Schirneck,Ethan | 992 | | 2. | Hess,Michael | 844 | | 3. | Recker,Moritz | 875 | | 4. | Rommel,Kevin | 863 | | ||
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| 5. | Brormann,Maurice | 730 | | 6. | Feldmann,Nils | | | 7. | Schnitker,Marvin | 824 |
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| U12 SV Soest | Ø: | | 1. | Höcker,Klemens Bo | | | 2. | Kuzaj,Jan | | | 3. | Schröder,Daniel | | | 4. | Kuzaj,Til | | | ||
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| 5. | Wuttig,Arjen | | | 6. | Sperlich,Aaron Noel | | | 7. | Lykowski,Patrick | | | 8. | Seyid,Rauf | |
| | U12 SK Delbrück | Ø:1014 | | 1. | Hinz,Vincent | 1027 | | 2. | Spehr,Neil | 1028 | | 3. | Käuper,Johann | 1139 | | 4. | Ringkamp,Niklas | 861 | | ||
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| 5. | Recker,Max | 751 | | 6. | Ogasa,Tim | 756 | | 7. | Isenberg,Greta | |
| | U12 SK BS Paderborn I | Ø:1158 | | 1. | Möller,Maurin | 1650 | | 2. | Rogalski,Niclas | 1112 | | 3. | Lewkowicz,David | 897 | | 4. | Merla,Mathias | 971 | | ||
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| 5. | Nolte,Matthis | 822 | | 6. | Schulze,Joshua | 869 | | 7. | Klerx,Philipp | 938 | | 8. | Kaul,David | | | 9. | Nolte,Jan | |
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| U12 SK BS Paderborn II | Ø:755 | | 1. | Stoltmann,Marcel | 789 | | 2. | Möller,Simon | 721 | | 3. | Konnerth,Maximilian | | | 4. | Khoja,Aram | | | ||
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| 5. | Altajev,Adelina Sophie | 750 | | 6. | Engler,Tim | 763 | | 7. | Vogler,Angelo | | | 8. | Nolte,Julius | | | 9. | Wolek,Lukas | | | 10. | Grigoryan,Narek-Martin | | | 11. | Quan,Vincent | | | 12. | Karcher,Franz | | | 13. | Jaspers,Ben | | | 14. | Laikom,David | | | 15. | Borgardt,Rafael | | | 16. | Elmesaoudi,Sarah | |
| | U12 SchachAkademiePaderborn I | Ø:1113 | | 1. | Stammen,York Magnus | 1185 | | 2. | Li,Xianquan | 1179 | | 3. | Danielsen,Asger | 1049 | | 4. | Gering,Jakob | 1038 | | ||
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| 5. | Schäfer,Anton | 966 | | 6. | Bade,Deniz | 917 |
| | U12 SchachAkademiePaderborn II | Ø:882 | | 1. | Hartmann,Ben | 901 | | 2. | Bakun,Nikita | 783 | | 3. | Bilitz,Milan | 989 | | 4. | Helbling,Daniel | 853 | | ||
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| 5. | Helbling,Leon | | | 6. | Le,Dinh An | 795 | | 7. | Burban,Victor | 975 | | 8. | Kleine,Joris | | | 9. | Kleine,Jelte | 785 |
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| U12 SchachAkademiePaderborn III | Ø:887 | | 1. | Hoffmann,Anastasia | 1105 | | 2. | Hencke,Luna | 833 | | 3. | Khoja,Maya | 799 | | 4. | Khaksar,Ayna | 809 | | ||
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| 5. | Ercan,Evangeline | | | 6. | Ercan,Piya | | | 7. | Henzel,Leonie | | | 8. | Helbling,Leon | | | 9. | Kleine,Joris | | | 10. | Le,Dinh An | 795 | | 11. | Kleine,Jelte | 785 | | 12. | Li,Xianhan | | | 13. | Rose,Alexander | | | 14. | Swid,Tim | | | 15. | Wagner,Levan | | | 16. | Doan,Anton | | | 17. | Krötz,Johann | |
| | Termine: |
| Runde 1: | 15.09.2018 |
| Runde 2: | 15.09.2018 |
| Runde 3: | 03.11.2018 |
| Runde 4: | 03.11.2018 |
| Runde 5: | 24.11.2018 |
| Runde 6: | 24.11.2018 |
| Runde 7: | 15.12.2018 |
| Runde 8: | 15.12.2018 |
| Runde 9: | 19.01.2019 |
| Runde 10: | 19.01.2019 |
| |