130 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| O`cuilleanain, Oisin | Liu, Jason | 1/2-1/2 | A15 | Round 8: O`cuilleanain, Oisin - Liu, Jason | 2026-08-08 |
| O`cuilleanain, Oisin | Ivanov, Andrey A. | 0-1 | C00 | Round 6: O`cuilleanain, Oisin - Ivanov, Andrey A. | 2026-08-06 |
| O`cuilleanain, Oisin | Woods, Yannick | 1-0 | B90 | Round 4: O`cuilleanain, Oisin - Woods, Yannick | 2026-08-04 |
| O`cuilleanain, Oisin | Voogt, Declan | 1-0 | C54 | Round 2: O`cuilleanain, Oisin - Voogt, Declan | 2026-08-02 |
| O`cuilleanain, Oisin | Nichenametla V, Advaith | 1-0 | E08 | Round 6: O`cuilleanain, Oisin - Nichenametla V, Advaith | 2026-06-01 |
| O`cuilleanain, Oisin | Fil, Alkim Alper | 0-1 | B28 | Round 4: O`cuilleanain, Oisin - Fil, Alkim Alper | 2026-05-31 |
| O`cuilleanain, Oisin | Barnes, Oliver | 0-1 | A14 | Round 2: O`cuilleanain, Oisin - Barnes, Oliver | 2026-05-30 |
| O`cuilleanain, Oisin | Arun, Nitish | 1-0 | E15 | Round 5: O`cuilleanain, Oisin - Arun, Nitish | 2026-04-26 |
| O`cuilleanain, Oisin | Nordgreen, Jan Thomas | 1-0 | B52 | Round 2: O`cuilleanain, Oisin - Nordgreen, Jan Thomas | 2026-04-25 |
| O`cuilleanain, Oisin | Melaugh, Shane | 0-1 | A13 | Round 4: O`cuilleanain, Oisin - Melaugh, Shane | 2026-03-08 |
| O`cuilleanain, Oisin | Artemenko, Oleg | 1/2-1/2 | B36 | Round 2: O`cuilleanain, Oisin - Artemenko, Oleg | 2026-03-07 |
| O`cuilleanain, Oisin | Hushpit, Lukian | 1/2-1/2 | C84 | Round 4: O`cuilleanain, Oisin - Hushpit, Lukian | 2026-02-22 |
| O`cuilleanain, Oisin | O`Gorman, Alice | 1-0 | B91 | Sligo 2026 Weekender Masters | 2026-02-01 |
| O`cuilleanain, Oisin | Khachatouri, Saro | 0-1 | B00 | Round 7: O`cuilleanain, Oisin - Khachatouri, Saro | 2025-12-01 |
| O`cuilleanain, Oisin | Varney, Zoe | 1/2-1/2 | C65 | Round 5: O`cuilleanain, Oisin - Varney, Zoe | 2025-11-30 |
| O`cuilleanain, Oisin | Schmider, Niklas | 0-1 | B90 | Round 3: O`cuilleanain, Oisin - Schmider, Niklas | 2025-11-28 |
| O`cuilleanain, Oisin | Czopor, Maciej | 0-1 | B30 | Round 1: O`cuilleanain, Oisin - Czopor, Maciej | 2025-11-27 |
| O`cuilleanain, Oisin | Swara Lakshmi S Nair | 1-0 | B90 | Najdorf Memorial | 2025-07-16 |
| O`cuilleanain, Oisin | Mickiewicz, Piotr | 0-1 | B57 | Najdorf Memorial | 2025-07-14 |
| O`cuilleanain, Oisin | Salgado Allaria, Carlos | 0-1 | B33 | Najdorf Memorial | 2025-07-13 |
| O`cuilleanain, Oisin | Golecki, Jan | 1-0 | B30 | Najdorf Memorial | 2025-07-11 |
| O`cuilleanain, Oisin | Sengupta, Deep | 0-1 | C05 | Najdorf Memorial | 2025-07-10 |
| O`cuilleanain, Oisin | Kholyavko, Kirill | 1-0 | A08 | Round 5: O`cuilleanain, Oisin - Kholyavko, Kirill | 2025-06-02 |
| O`cuilleanain, Oisin | Gallagher, Brian | 1-0 | B92 | Round 3: O`cuilleanain, Oisin - Gallagher, Brian | 2025-06-01 |
| O`cuilleanain, Oisin | Palacios Sanchez, Victor | 1-0 | B40 | Round 1: O`cuilleanain, Oisin - Palacios Sanchez, Victor | 2025-05-30 |
| O`cuilleanain, Oisin | Kesare, Aarav | 1-0 | B30 | Round 4: O`cuilleanain, Oisin - Kesare, Aarav | 2025-04-20 |
| O`cuilleanain, Oisin | Melaugh, Shane | 0-1 | A90 | Round 6: O`cuilleanain, Oisin - Melaugh, Shane | 2025-04-20 |
| O`cuilleanain, Oisin | Voogt, Declan | 1-0 | C83 | Round 2: O`cuilleanain, Oisin - Voogt, Declan | 2025-04-19 |
| O`cuilleanain, Oisin | Rindhiya V | 0-1 | C54 | praha2025 | 2025-01-16 |
| O`cuilleanain, Oisin | Topencik, Bruno | 0-1 | B11 | praha2025 | 2025-01-14 |
| O`cuilleanain, Oisin | Murphy, Sean J. | 1-0 | A16 | Round 5: O`cuilleanain, Oisin - Murphy, Sean J. | 2024-06-03 |
| O`cuilleanain, Oisin | Artemenko, Oleg | 1/2-1/2 | B27 | Round 6: O`cuilleanain, Oisin - Artemenko, Oleg | 2024-06-03 |
| O`cuilleanain, Oisin | Collins, Adam | * | A07 | Round 3: O`cuilleanain, Oisin - Collins, Adam | 2024-06-02 |
| Oisin O'Cuilleanain | Lukian Hushpit | 1/2-1/2 | C54 | Round 4: Oisin O'Cuilleanain - Lukian Hushpit | 2024-02-04 |
| Oisin O'Cuilleanain | Sergey Beryozkin | 0-1 | B23 | Round 1: Oisin O'Cuilleanain - Sergey Beryozkin | 2024-02-02 |
| Oisin O'Cuilleanain | Conor O'Donnell | 1/2-1/2 | B11 | Round 5: Oisin O'Cuilleanain - Conor O'Donnell | 2024-01-28 |
| Oisin O'Cuilleanain | Ben Sheahan | 1/2-1/2 | E00 | Round 2: Oisin O'Cuilleanain - Ben Sheahan | 2023-10-15 |
| Oisin O'Cuilleanain | Rustem Abdullayev | 1-0 | B40 | Round 4: Oisin O'Cuilleanain - Rustem Abdullayev | 2023-10-15 |
| Oisin O'Cuilleanain | Luke Scott | 1-0 | E00 | Round 5: Oisin O'Cuilleanain - Luke Scott | 2023-10-15 |
| O`cuilleanain Oisin | Kolb Tobias | 0-1 | D35 | Open A | 2023-07-19 |
| Juracak, David | Visvader, Kristof | 1-0 | D47 | Piestany B | 2023-07-19 |
| Juracak, David | Livnansky, Tomas | 1-0 | D46 | Piestany B | 2023-07-18 |
| Juracak, David | Sahidi, Shabir | 1/2-1/2 | D37 | Piestany B | 2023-07-16 |
| O`cuilleanain Oisin | Warchol Kamil | 1-0 | A28 | Open A | 2023-07-16 |
| Juracak, David | Farkas, Renata | 0-1 | D31 | Piestany B | 2023-07-14 |
| O`cuilleanain Oisin | Maryasin Boris | 1-0 | E04 | Open A | 2023-07-14 |
| O`cuilleanain Oisin | Arvind Ramnath Iyer | 1/2-1/2 | A16 | Open A | 2023-07-12 |
| Juracak, David | Sharapova, Polina | 1/2-1/2 | D43 | Piestany B | 2023-07-12 |
| Oisin O`cuilleanain | Jakub Kosakowski | 0-1 | B11 | Ronda 2: Oisin O`cuilleanain - Jakub Kosakowski | 2023-04-06 |
| Oisin O'Cuilleanain | Petar Arnaudov | 0-1 | B06 | Round 4: Oisin O'Cuilleanain - Petar Arnaudov | 2023-02-19 |
| Oisin O'Cuilleanain | Colm Daly | 1-0 | B46 | Round 2: Oisin O'Cuilleanain - Colm Daly | 2023-02-18 |
| O`cuilleanain, Oisin | Krasovskiy, Kirill | 1-0 | E09 | Prague Open | Czech Tour | 2023-01-12 |
| Oisin O'cuilleanain | Sanjit S Kumar | 1/2-1/2 | C01 | Round 8: Oisin O'cuilleanain - Sanjit S Kumar | 2022-08-30 |
| Oisin O'cuilleanain | Thomas Brown | 0-1 | B27 | Round 4: Oisin O'cuilleanain - Thomas Brown | 2022-08-28 |
| Oisin O'cuilleanain | Zain Patel | 1-0 | B11 | Round 2: Oisin O'cuilleanain - Zain Patel | 2022-08-27 |
| Oisin O'Cuilleanain | Diana Mats | 1-0 | A14 | Round 8: Oisin O'Cuilleanain - Diana Mats | 2022-07-09 |
| Oisin O'Cuilleanain | Colm Daly | 1-0 | E80 | Round 6: Oisin O'Cuilleanain - Colm Daly | 2022-07-07 |
| Oisin O'Cuilleanain | John Kennedy | 1-0 | D30 | Round 3: Oisin O'Cuilleanain - John Kennedy | 2022-07-04 |
| Oisin O'Cuilleanain | Peter Carroll | 0-1 | B51 | Round 2: Oisin O'Cuilleanain - Peter Carroll | 2022-07-03 |
| Oisin O'Cuilleanain | Alexander Baburin | 1/2-1/2 | D35 | Round 4: Oisin O'Cuilleanain - Alexander Baburin | 2022-05-01 |
| Oisin O'Cuilleanain | Manuel Cabanas Jimenez | 1-0 | A16 | Round 3: Oisin O'Cuilleanain - Manuel Cabanas Jimenez | 2022-04-30 |
| Oisin O'Cuilleanain | Evgeniya Doluhanova | 0-1 | E32 | Round 1: Oisin O'Cuilleanain - Evgeniya Doluhanova | 2022-04-29 |