Real Madrid in the Champions League (1956-Present)

With 15 European Cup/Champions League titles including five straight from 1956-1960, Real Madrid owns this tournament like no other club. Their 34% conversion rate from semifinals to titles is 12 points higher than the average elite European club. This record outperforms #4 Montreal Canadiens' Stanley Cup streak by sustaining dominance across six decades with a continental competition that includes over 50 clubs annually.