31 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Giannoulis, Grigorios | Antonioudakis, Georgios | 0-1 | B23 | Round 8: Giannoulis, Grigorios - Antonioudakis, Georgios | 2024-06-27 |
| Giannoulis, Grigorios | Tsamtsouris, Efthymios | 1-0 | B07 | Round 7: Giannoulis, Grigorios - Tsamtsouris, Efthymios | 2024-06-26 |
| Giannoulis, Grigorios | Balafoutis, Ilias | 1-0 | B47 | Round 5: Giannoulis, Grigorios - Balafoutis, Ilias | 2024-06-25 |
| Giannoulis, Grigorios | Styfougias, Evangelos | 1-0 | B23 | Round 2: Giannoulis, Grigorios - Styfougias, Evangelos | 2024-06-23 |
| Giannoulis, Grigorios | Kassios, Dimitrios | 1/2-1/2 | C70 | Round 3: Giannoulis, Grigorios - Kassios, Dimitrios | 2024-06-21 |
| Giannoulis, Grigorios | Gogolis, Alexandros | 0-1 | B06 | 26th chess tournament of Iraklio Attica | 2024-06-20 |
| Giannoulis, Grigorios | Panopoulos, Ioannis | 1-0 | C77 | Round 4: Giannoulis, Grigorios - Panopoulos, Ioannis | 2024-06-18 |
| Giannoulis, Grigorios | Kazantzoglou, Stefanos | 1/2-1/2 | C78 | Round 2: Giannoulis, Grigorios - Kazantzoglou, Stefanos | 2024-06-16 |
| GRIGORIOS GIANNOULIS | NIKOLAOS KOUTLAS | 0-1 | B03 | Round 3: GRIGORIOS GIANNOULIS - NIKOLAOS KOUTLAS | 2023-08-29 |
| Grigorios Giannoulis | Dimosthenis Panagiot Tzortzatos | 0-1 | B23 | Round 9: Grigorios Giannoulis - Dimosthenis Panagiot Tzortzatos | 2023-07-09 |
| GRIGORIOS GIANNOULIS | NIKOLAOS KAZAKOS | 1/2-1/2 | C07 | Round 5: GRIGORIOS GIANNOULIS - NIKOLAOS KAZAKOS | 2023-07-06 |
| GRIGORIOS GIANNOULIS | NIKOLAOS POUPALOS | 1/2-1/2 | B90 | Round 6: GRIGORIOS GIANNOULIS - NIKOLAOS POUPALOS | 2023-07-06 |
| GRIGORIOS GIANNOULIS | CHRISTOS TSARSITALIDIS | 1/2-1/2 | B90 | Round 3: GRIGORIOS GIANNOULIS - CHRISTOS TSARSITALIDIS | 2023-07-04 |
| Grigorios Giannoulis | Konstantinos Zouroufidis | 1-0 | C77 | Round 1: Grigorios Giannoulis - Konstantinos Zouroufidis | 2023-07-03 |
| Grigorios Giannoulis | Spyros Hartofylakas | 1-0 | C09 | Round 7: Grigorios Giannoulis - Spyros Hartofylakas | 2023-06-23 |
| Grigorios Giannoulis | Davit Santryan | 0-1 | B03 | Round 4: Grigorios Giannoulis - Davit Santryan | 2023-06-20 |
| Giannoulis, Grigorios | Papaioannou, Dimitrios | 1/2-1/2 | B60 | National Greek Team Championship | 2022-08-13 |
| Giannoulis, Grigorios | Moschopoulos, Aristeidis | 1-0 | B90 | National Greek Team Championship | 2022-08-12 |