In 2019, Smart Adeyemi, a former senator representing Kogi west, will slug it out with Dino Melaye, incumbent lawmaker representing the constituency.
While Adeyemi is vying for the position on the platform of the All Progressives Congress (APC), Melaye is of the Peoples Democratic Party (PDP).
In 2015, the reverse was the case as Melaye was of the APC while Adeyemi ran under PDP.
At the APC primary on Thursday, Bonnie Eneh, chairman of the committee that coordinated the election, said 1,893 votes were recorded at the exercise held at Kabba.
He said 13 votes were voided.
According to Eneh, Adeyemi polled 1,659 to defeat Toyin Akanle who polled 104 votes.
For Kogi east, Jibrin Isah scored 2,469 votes to defeat Yahaya Audu who polled 308 votes.
In Kogi central, Yakubu Oseni polled 1,100 votes to emerge the winner.
Oseni defeated Sheriff Dalhatu who polled 371 votes, Nurudeen Abatemi who scored 160 votes, Kabir Ajanah who recorded 32 votes and Yahaya Haruna, a former ADC to Adams Oshiomhole, the national chairman of the APC who scored 12 votes.
Melaye secured PDP ticket on Wednesday.