Frontrunner AEK maintained both its lead and perfect record in the Super League after five rounds of play with a 1-0 win over Larissa Saturday. AEK took the lead early in the game, in the fourth minute of play when Brazilian midfielder Gustavo Manduca dribbled past two defenders and unleashed a powerful shot from 20 meters. Also Saturday, defending champion Olympiakos defeated Panionios 4-1 at home to maintain second place, four points behind AEK. In Thessaloniki last night, Aris defeated local rival PAOK 3-1 to remain fourth, six points behind AEK. Panathinakos earned a valuable 2-0 win at Veria yesterday for third spot on 10 points. In other games, it was: Apollon Kalamaria-Ergotelis, 2-1; OFI-Asteras Tripoli, 0-3; Levadiakos-Xanthi, 2-1. Atromitos was due to host Iraklis later last night.