From August 31st to September 3rd 2015, the 12th mathematical week took place at Mandoulides Schools. With 102 students participating. After written examinations, the following students received distinctions:
| 8th grade | |
| 1st place | S. Mastoris |
| 2nd place | M. Triantafyllidis (7th grade) |
| 3rd place | P. – M. Nikolakis (Vasileiadis Schools) |
| Honorable mention | E. Kimpouropoulou, M. Papagianni, E. Dolopikou, M. Pantelidou |
| 9th grade | |
| 1st place | K. Koutroulis, O. Ploiaridis |
| 2nd place | A. Savva (Music School) |
| 3rd place | I. Samaras, A. Skendaris (Experimental) |
| Honorable mention | P. Chalimourdas (Arsakeio), E. Hasioti |
| 10th grade | |
| 1st place | R. Tsiamis (12th grade curriculum), O. Sitsiani |
| 3rd place | E. Nikolaidou, S. Mavromatis, C. Ioannidis (Hellenic College) |
| 11th grade | |
| 1st place | P. Koutsogeorgos, V. Georgiadis |
| 2nd place | D. Tsintsilidas (Drama), T. Charis |
| 3rd place | G. Makris (Aristoteleio) |
| 12th grade | |
| 1st place | F. – I. Sytilidis, R. Ketsetsidis, G. Venizelos |
| 2nd place | I. Girousis |
| 3rd place | G. Papachatzakis |
