spˈɑːɹɾæks ɡɹˈeɪɾɪst səksˈɛs kˈeɪm ɪn nˈaɪntiːnhˈʌndɹɪd sˈɪksti θɹˈiː, haʊˈɛvɚ, wˌɛn ðeɪ wɜː kɹˈaʊnd tʃˈæmpiənz ʌv bʌlɡˈɛɹiə fɚðə nˈaɪntiːnhˈʌndɹɪd sˈɪksti tˈuː sˈɪksti θɹˈiː sˈiːzən.
Spartak’s greatest success came in 1963, however, when they were crowned champions of Bulgaria for the  (1962–63 season).