Rubuta ci gaba don wannan sakin layi - A ranar 29 ga Yuli, Johnson ya sami nasarar lashe gasar Olympics ta mita 400 tare da rikodin rikodin na 43.49 seconds, 0.92 seconds a gaban mai lambar azurfa Roger Black na Birtaniya. A wasan karshe na mita 200 a ranar 1 ga watan Agusta, Johnson ya gudu mita 100 na farko a cikin dakika 10.12 kuma ya gama tseren a cikin rikodin duniya na dakika 19.32, ya karya sama da kashi uku cikin goma na na biyu da ya kafa a cikin gwajin wasannin Olympics na Amurka, a kan wannan hanyar wata daya da suka gabata - mafi girman ci gaba a tarihin duniya na mita 200. Wasu masu sharhi sun kwatanta wasan kwaikwayon da Bob Beamon ya yi a tsalle-tsalle mai tsayi a gasar Olympics ta 1968 a Mexico City. A lokacin tseren, Johnson ya yi tsoka a kafa, wanda ya hana shi lashe lambar zinare ta uku a gasar Olympics a tseren mita 4 × 400
yayin da Team USA suka ci gaba da lashe zinare ko da ba tare da shi ba.