The silver medalist in the women’s 75kg event at the 2012 Games lifted 147kg in her first attempt, and 149kg in the second attempt.
She went on to take a lead with a 151kg lift in her third attempt, leaving her opponents bewildered as she went on to lift 152kg in the final attempt.
Great Britain’s Louise Sugden won the bronze medal with a lift of 131kg.
The News Agency of Nigeria (NAN) reports that Oluwafemiayo’s feat took Nigeria to 21st on the medals table, with a total haul of three gold, one silver and two bronze.
Earlier in the day, Loveline Obiji had won silver medal for Team Nigeria in the women’s +86kg event.