Olympiacos was the big winner of the always exciting Greek League showdown against archrival Panathinaikos, 61-65 on Wednesday at OAKA to remain undefeated and take over sole possession of first place. The Greens dropped their first game of the season to fall to 11-1. The win marked the Reds first win at OAKA in four years and 13 straight defeats. Radoslav Nesterovic paced the winners with 17 points, while Milos Teodosic posted 10 points and 4 assists, Zoran Erceg netted 10 points, Theo Papaloukas had 9 points and 5 assists and Vassilis Spanoulis, who moved last summer from Panathinaikos to Olympiacos added 4 points and 6 assists. Drew Nicholas paced the hosts with 15 points, Romain Sato registered 13 points and 6 rebounds, Antonis Fotsis had 9 points and 7 boards, but Dimitris Diamantidis bagged just 2 points on 0-for-9 shooting. Olympiacos scored the last 7 points of the first half for a 34-36 halftime lead on a Yotam Halperin buzzer beater. Panathinaikos regained control and led 58-55 with four minutes remaining, but Olympiacos showed its character with a 0-7 run to snatch the victory. Meanwhile, after a three-game winning streak, Aris was defeated at home by Panionios 84-89 despite Christos Tapoutos’s 21 points and 10 boards. Milos Vujanic made 24 points and 8 assists for the winners. PAOK lost 71-66 to Kolossos Rhodes as Pat Calathes paced the hosts with 18 points and 12 boards. Lazaros Papadopoulos scored