After threatening all week, rain finally arrived at Clark International Speedway.
It certainly changed the dynamics of the final race of the second event as none of the drivers had much experienced driving a wet race.
The start of the race was delayed by some 15 minutes as the track was flooded.
It was finally given the go ahead by the stewards — on the condition the race be started behind the safety car.
The start positions were decided by the outcome of Race Five, with the top four starting on a reserve grid.
That meant Kane Shepherd and Sam Grimes made up the front row followed by Daniel Cao and Ben Grimes, Adam Khalid, Shinvin Sirrinarinthon, Luke Thompson and Timothy Yeo.
Adam failed to get his engine to ignite and had to begin the race from the pit lane.
After three laps the safety car pulled inside and the racing began with Cao making his move.
His pressure forced Sam to spin on his own. After overtaking the Filipino, Cao hunted down Shepherd and eventually passed him in the penultimate corner of the lap.
Once in front, there was no stopping the Chinese maestro. The red flags came out after the completion of the fifth lap and the Cao took the race in 12:33.808s.
Shepherd finished second with Ben taking third place.