Matt Hall of Australia continued a late-season charge by earning his second consecutive pole position with the top time in qualifying for the Red Bull Air Race season finale at Indianapolis Motor Speedway.
He scored the top time of one minute 4.149 seconds.
Peter Kopfstein of the Czech Republic and Juan Velarde of Spain claimed second and third.
In a shock match up – Sonka and Muroya will scrap it out against each other in Sunday’s opening head-to-heads.
Sonka currently leads the standings with 63 points, with Muroya in second on 59 points.
A maximum of 15 points are up for grabs for the winner on Sunday.