At the 1952 Summer Olympics in Helsinki, Finland, Konno won gold medals in the men's 1,500-meter freestyle and the 4×200-meter freestyle relay.
æt ðə nˈaɪntiːnhˈʌndɹɪd fˈɪfti tˈuː sˈʌmɚɹ əlˈɪmpɪks ɪn hɛlsˈɪŋki, fˈɪnlənd, kˈɑːnoʊ wˈʌn ɡˈoʊld mˈɛdəlz ɪnðə mˈɛnz wˈʌn,fˈaɪvhˈʌndɹɪdmˈiːɾɚ fɹˈiːstaɪl ænd ðə fˈoːɹ tˈaɪmz tˈuːhˈʌndɹɪdmˈiːɾɚ fɹˈiːstaɪl ɹˈiːleɪ.