Adeniyi was awarded the fight following injury sustained by Fazzari in the course of the final bout.
Adeniyi’s route to the final saw her outclass Cameroon’s Emiliene Etane Ngolle with a technical superiority verdict of 11-0 points win.
She secured a 6-3 victory by points win against Sakshi Malik of India before another 11-0 technical superiority win against New Zealand’s Tayla Ford.
She now joins Odunayo Adekuoroye and Blessing Oborududu as gold medal winners for Team Nigeria in wrestling at this year’s Games.
And in the final of the men’s freestyle (86kg), Nigeria’s Melvin Bibo was not so lucky as he was beaten by Muhammad Inam of Pakistan.
Inam recorded a victory by points win decision of 6-0 against his 41-year-old Nigerian opponent, in the last wrestling bout at the 2018 Commonwealth Games.
Bibo becomes the second Nigerian wrestler to win silver at this year’s Commonwealth Games.
On Friday, Blessing Onyebuchi lost in the final to Canada’s Erica Wiebe in the women’s freestyle (76kg) event.
Adeniyi and Bibo’s feats mean Team Nigeria now has nine gold, eight silver and six bronze medals