Rubuta ci gaba ga wannan sakin layi - Park ya cancanci maza 100 m baya
a Wasannin Olympics na bazara na 2012 a London, ta hanyar share lokacin shigarwa na FINA B na 55.39 a Gasar Cin Kofin Duniya ta FINA a Shanghai, China. Ya kalubalanci wasu masu iyo bakwai a zagayen na biyu, gami da tsoffin 'yan wasan Olympics Omar Pinzón na Colombia da tsohon mai lambar tagulla George Bovell na Trinidad da Tobago. Park ta shawo kan dan wasan tseren ruwa dan asalin Rasha Alexandr Tarabrin na Kazakhstan don daukar matsayi na biyar da kashi hudu cikin dari na biyu (0.04), tare da lokacin da ya kai dakika 55.51. Park ya kasa ci gaba zuwa wasan kusa da na karshe, yayin da ya sanya na talatin da shida a cikin zafin farko.