ˈæftɚ stˈɑːɹɾɪŋ hɪz kɚɹˈɪɹ ɔnðə kˈɑːʃɪs tˈiːm ɪn nˈaɪntiːnhˈʌndɹɪd sˈɪksti θɹˈiː sˈɪksti fˈoːɹ, hˈoʊlsɛk plˈeɪd ðɛɹ fɔːɹ tˈɛn jˈɪɹz ʌntˈɪl hiː dʒˈɔɪnd spˈɑːɹɾə pɹˈɑːɡ fɚðə nˈaɪntiːnhˈʌndɹɪd sˈɛvənti θɹˈiː slˈæʃ nˈaɪntiːnhˈʌndɹɪd sˈɛvənti fˈoːɹ sˈiːzən.
After starting his career on the Košice team in 1963–64, Holecek played there for 10 years until he joined Sparta Prague for the 1973/1974 season.