| Koellner, Felicitas Ophelia1815 | ½-½ | Green, Per1927 | Xtracon Chess Open 2018 | 2018 |
| Larsen, Ulrik2011 | 1-0 | Koellner, Felicitas Ophelia1815 | Xtracon Chess Open 2018 | 2018 |
| Koellner, Felicitas Ophelia1815 | 1-0 | Preuss, F1971 | Xtracon Chess Open 2018 | 2018 |
| Jacobsen, P21590 | 0-1 | Koellner, Felicitas Ophelia1815 | Xtracon Chess Open 2018 | 2018 |
| Koellner, Felicitas Ophelia1815 | ½-½ | Pallesen, Ja2058 | Xtracon Chess Open 2018 | 2018 |
| Hansen, Svein E2041 | 1-0 | Koellner, Felicitas Ophelia1815 | Xtracon Chess Open 2018 | 2018 |
| Koellner, Felicitas Ophelia1815 | ½-½ | Schultz Pedersen, J2057 | Xtracon Chess Open 2018 | 2018 |
| Thybo, Jan1272 | 0-1 | Koellner, Felicitas Ophelia1815 | Xtracon Chess Open 2018 | 2018 |
| Koellner, Felicitas Ophelia1815 | 0-1 | Matthiesen, M2273 | Xtracon Chess Open 2018 | 2018 |
| Bleisinger, Emil1668 | 0-1 | Koellner, Felicitas Ophelia1810 | 10th Rheinland-Pfalz Open | 2018 |
| Koellner, Felicitas Ophelia1810 | 0-1 | Spreemann, R2030 | 10th Rheinland-Pfalz Open | 2018 |
| Scholz, Alexander | ½-½ | Koellner, Felicitas Ophelia1810 | 10th Rheinland-Pfalz Open | 2018 |
| Koellner, Felicitas Ophelia1810 | 1-0 | Klemens, Martina | 10th Rheinland-Pfalz Open | 2018 |
| Stull, N2096 | 1-0 | Koellner, Felicitas Ophelia1810 | 10th Rheinland-Pfalz Open | 2018 |
| Koellner, Felicitas Ophelia1810 | 1-0 | Khalil, Cengiz | 10th Rheinland-Pfalz Open | 2018 |