Mandoulides Schools rank 1st in Northern Greece in number of successful participants and 3rd in Greece, with 40 students qualifying in the 86th Panhellenic Competition of the Hellenic Mathematical Society (HMS) “Euclid”, which took place on Saturday, January 17, 2026. These students will participate in the final stage of the 43rd National Mathematical Olympiad “Archimedes” of the HMS, to be held on Saturday, February 28, 2026.
The students are:
5th Grade (Primary School)
- N.-G. Kleisarchakis (competed on 8thgrade level problems)
6th Grade (Primary School)
- M. Matsou (competed on 8thgrade level problems)
7th Grade (1st Grade of Gymnasium)
- F. Nikakis
- O.-K. Papaventsis (both competed on 8thgrade level problems)
8th Grade (2nd Grade of Gymnasium)
- N. Adamopoulou, Ch. Koukoulia, A. Konstantinou, I. Matsos, E. Mavropetrou, K. Misios, A. Papoutsis, D. Pitsegkos, S. Ranios, D. Stafylas, Ch. Stergiopoulos, V. Chondrodimos
9th Grade (3rd Grade of Gymnasium)
- E. Giouvanopoulos, Th. Gitsa, P. Thanou, I. Karatzoglou, A. Nikaki, D. Ravanos, K. Spanos, Ch. Floros, G. Chalkeidis
10th Grade (1st Grade of Lyceum)
- V. Delis, G. Delis, R. Maroulas, V. Bekiaris, L.-A. Donati, A. Sklavou, Ch. Chalkiotis, O. Chasiotis, D. Psarras
11th Grade (2nd Grade of Lyceum)
- E. VasileiouAvgoustoglou, M.-E. Tsiopoulou
12th Grade (3rd Grade of Lyceum)
- I. Zachou, L. Karageorgiou, Th. Papagiotopoulos, Ch. Toumanidis
Top 10 Schools with the Highest Number of Successful Participants
| No. | School | Total Successes |
| 1 | Moraitis School | 55 |
| 2 | Athens College | 54 |
| 3 | Mandoulides Schools | 40 |
| 4 | Anavryta Model School | 40 |
| 5 | Varvakeio Model Gymnasium | 32 |
| 6 | Evangeliki Model School of Smyrna | 29 |
| 7 | Psychico College (Hellenic-American) | 26 |
| 8 | American College Anatolia | 25 |
| 9 | 2nd Model Gymnasium of Thessaloniki | 23 |
| 10 | Varvakeio Model Lyceum | 21 |
