The draw for this round took place on 13 August 2018. 12 teams out of the original 53 did not participate in the draw. The majority of the games were held on 26 August 2018, with the exception of matches 12 and 16, which will take place on 2 September.
The draw for this took take place on 7 September 2018.
A total of 32 teams are involved in the Round 3 draw: The 16 2018−19 Football League teams entering in this round, and the sixteen winners of the previous round.
16 single-match fixtures will be determined, of which the winners will qualify to the competition Group Stage. All Games will be held between 15-16 September 2018.
Location of teams of the 2018–19 Greek Football Cup group stage. Brown: Group A; Red: Group B; Orange: Group C; Yellow: Group D; Green: Group E; Blue: Group F; Purple: Group G; Pink: Group H.
The draw for the group stage was held on 18 September 2018, 12:00 EEST, at the headquarters of the Hellenic Football Federation in Goudi, Athens. The 32 teams were drawn into eight groups of four. For the draw, the teams were seeded into four pots based on the following principles:
Pot 1 contained the clubs finishing 1st through 8th in the Superleague.
Pot 1 contained the clubs finishing 9th through 14th in the Superleague, along with the two cubs promoted from the Football League.
Teams in each group will play one another in a round-robin basis, with the top two teams of each group advancing to the knockout stage. Match-day 1 matches will be held between 25-27 September, Match-day 2 matches will be held between 30 October and 1 November, while Match-day 3 will be held between 4-6 December 2018.
In the knockout phase, teams play against each other over two legs on a home-and-away basis,
except for the one-match final. The mechanism of the draws for each round is as follows:
In the draw for the round of 16, the eight group winners are seeded, and the eight group runners-up are unseeded. The seeded teams are drawn against the unseeded teams, with the seeded teams hosting the second leg.
In the draws for the quarter-finals onwards, there are no seedings, and teams from the same group can be drawn against each other.