Frequently Asked Questions (FAQ)

Draw Process

The winning numbers of each draw are generated by a random number generation (RNG) system developed by the Institute of Computer Technology and Publications (ITYE) of the University of Patras, on behalf of OPAP.


Winnings are paid either through OPAP stores, after presenting the winning ticket, or by authorized banks, following the procedures established by OPAP S.A.

Note: Tickets who are lost, destroyed, altered or in any other case, cannot be validated and retrieved from the Central Processing System, are not valid and are not entitled to any prizes or any other claim for compensation by OPAP S.A.

Upon winnings payment, the corresponding taxes are withheld by OPAP S.A. according to the provisions of law in force.

Note: After a period of 3 months from the winning column draw, any prize claim is void.

Winnings certificate (for both OPAP S.A. and Hellenic Lotteries S.A.) is issued upon request.

The submission process can be completed through our website. For more information you can visit