against Milan for the 1959–60 European Cup, the first ever Greek club to compete in a European competition. Olympiacos was also the first Greek club to advance to the next round of any European competition, eliminating Zagłębie Sosnowiec for the 1963–64 European Cup Winners' Cup. Their best European campaigns are their presence in the 1998–99 UEFA Champions League quarter-finals, where they lost a semi-final spot in the last minutes by Juventus, and in the 1992–93 European Cup Winners' Cup quarter-finals, losing to Atlético Madrid. Olympiacos is by far the highest ranked Greek club in the UEFA rankings, occupying the 37th place in Europe in the five-year ranking and the 31st in the ten-year ranking as of 2019. They are also the Greek team with the most wins in all European competitions, leading also the table with the most home and away wins, and the Greek team with the most games played in European level, celebrating their 200th match on 23 February 2010, against Bordeaux in the 2009–10 UEFA Champions League first knockout round. Olympiacos also holds the all-time record attendance for a Greek club of 75,263 in a 1982–83 European Cup match against Hamburg at the Athens Olympic Stadium. Olympiacos has eliminated (in either knockout matches or group stages) clubs like Milan, Arsenal, Ajax, Benfica, Porto, Borussia Dortmund, Lazio, Celtic, Werder Bremen, Anderlecht, Monaco, Deportivo La Coruña, Hertha BSC, Cagliari, PSV Eindhoven, GNK Dinamo Zagreb and Standard Liège among others. They have spent most of their European history in the UEFA Champions League, where they are widely known for being a strong home side, having run some long-standing sequences, such as the 15 straight UEFA Champions League unbeaten home matches since their debut in the tournament under its new format, when Manchester United stopped their record in their fifth consecutive participation, and their 15 wins in 19 UEFA Champions League home matches between 2009–10 and 2014–15. They have a vast record of home wins over traditional European powerhouses and UEFA Champions League winners like Real Madrid, Milan, Liverpool, Manchester United, Ajax, Juventus, Arsenal, Borussia Dortmund, Benfica, Porto, Celtic, Olympique Lyonnais, Olympique Marseille, Atlético Madrid, Valencia, Sevilla, Leverkusen, Galatasaray, Fenerbahçe, Red Star Belgrade, PSV Eindhoven among many others. Olympiacos has also won the Balkans Cup in 1963, at a time when the competition was considered the second most important in the region after the European Cup, becoming the first ever Greek