The chief Apollonian festival was the Pythian Games held every four years at Delphi and was one of the four great Panhellenic Games.
ðə tʃˈiːf ɐpəlˈoʊniən fˈɛstɪvəl wʌzðə pˈaɪθiən ɡˈeɪmz hˈɛld ˈɛvɹi fˈoːɹ jˈɪɹz æt dˈɛlfaɪ ænd wʌz wˈʌn ʌvðə fˈoːɹ ɡɹˈeɪt pˌænhɪlˈɛnɪk ɡˈeɪmz.