success came in 1923 when they won the first edition of the Yugoslav Cup, named back then as the King Alexander Cup. The club will regularly compete in the Yugoslav First League since 1927, and their finest hour came in the 1937–38 season when they won the Yugoslav title. They even went on to compete in the 1938 Mitropa Cup, when they were knocked out in the first round of the tournament by the Czechoslovakian side SK Kladno with 5:2 on aggregate. On a local level, in the period from 1911 to 1945 the club played a total of 120 matches against city rivals Građanski. Their last game was a 2–2 draw on 10 April 1945, just before both clubs were disbanded by the communist government. The newly formed Dinamo Zagreb, which was established by the authorities two months later, took over HAŠK's Maksimir ground (originally opened in May 1912), along with many players who switched from Građanski or HAŠK to Dinamo. Other sports sections of the club were renamed FD Akademičar (Academic Sports Society) and later merged with ASD Mladost (Youth Academic Sports Society) which survives today as the HAŠK Mladost sports society, most famous for their later water polo and volleyball success on both the national and continental levels. The most prominent of HAŠK's football players who later joined Dinamo was Zlatko Čajkovski, who spent the next 11 seasons playing for Zagreb's powerhouse. Dinamo's current youth academy and training ground located next to their stadium both bear the name Hitrec-Kacian, in honour of two HAŠK players, Ico Hitrec and Ratko Kacian. Post-Yugoslavia After the fall of communism and in the midst of the breakup of Yugoslavia, the club was reactivated and officially registered in November 1990, but in name only – no sports activities were started as the new club leadership centered their activities on promoting HAŠK's legacy and organizing events intended to raise the public awareness of the contribution HAŠK has made to the development of sports in Croatia. In an attempt to revive their glory days, the newly restarted club decided to enter competition sports again in 1993 so they merged with a local amateur football side called NK TPK from the Peščenica neighbourhood of Zagreb. In 2006 they merged again with the Druga HNL side NK Naftaš Ivanić from Ivanić Grad to form the present day NK HAŠK, currently a second tier club in the