Sergey Kirdyapkin of Russia strolled to Olympic gold in the men's 50km walk on Saturday.
Kirdyapkin, a two-time world champion, posted an Olympic record time of three hours, 55 minutes and 59 seconds.
Australia's Jared Tallent retained the silver medal he won in Beijing a minute behind.
The bronze went to China Si Tianfeng, the Asian champion, in 3:37.16.
