Tinubu defeated the likes of Vice-President, Prof. Yemi Osinbajo; Rotimi Amaechi, former Minister of Transportation; and Kogi State Governor, Yahaya Bello.
The former Lagos State governor gained ground after fellow contestants, Governors Kayode Fayemi, Abubakar Badaru, and ex-Governor Ibikunle Amosun, among others stepped down for him on Tuesday night.
Meanwhile, Amaechi, who is projected to come second, alleged rigging of the election process.
2,322 delegates from 36 states and the Federal Capital Territory (FCT) voted at the APC presidential primaries.
See the results below:
Bola Ahmed Tinubu 1013
Ahmed Lawal 79
Yemi Osibanjo 155
Rotimi Amaechi 212
Yahaya Bello 25
Dave Umahi 10
Ben Ayade 14
Ahmed Sani 2
Sani Yerima 1
Void Votes 8