Dawesville MP Zak Kirkup is now the leader of the WA Liberal Party, after rival Dean Nalder pulled out of the race minutes before their partyroom vote.
The 33-year-old was elected into the top job replacing Liza Harvey after she stepped down from her position on Sunday.
Out going deputy leader Bill Marmion has been replaced by Vasse MP Libby Mettam who was also elected unopposed.
The next state election is scheduled for March, 2021.
Passengers now able to use credit, debit cards to tag on and off WA's public transport
New floating jetty speeds up emergency response times for Marine Rescue Mandurah
Baldivis Police on the lookout for reckless dirt bike riders
WATCH: Youths captured on CCTV stealing car in Golden Bay
Fire crews battle early morning blaze in Warnbro
Driver charged over alleged hit-and-run on Mandurah Terrace
More paramedics, ambulances to be stationed in Dawesville, Australind
Strict demersal fishing bans to come into force off WA coast to save species from extinction
Police call for witnesses to fatal Waroona crash