 The rivalry was choosen by COPA90 as the 2nd Maddest Derby In Eastern Europe.The rivalry started in the late 1940s when the newly founded club of CSKA became a champion in their first year in competitive football in 1948.Both the 1948–49 and 1950 seasons ended with the two teams facing each other in Soviet Army Cup finals with Levski Sofia winning on both occasions after extra time of the second final replay, as the previous two final matches had finished as draws.