A blistering start from the visitors ensured a comfortable afternoon for inform Kingstonian at Woking Park.
In a sixth minute mistake at the back led to a shot that was well saved by goalkeeper Hugo Sobte the ball inadvertently hit Manolis Gogonas and rebounded into his own net.
Less than 60 seconds later the lead was doubled when Westfield guilty of giving the ball away cheaply in the final third and the visitors broke with devastating effect and Tyler Cox was there to double the lead.
Two became three in the 28 minute when Eddie Simon finished off a well work to move to curl the ball into the top corner.
In-betwen Westfield had forged good chances of their own with 2 efforts cleared off the line and keeper Allen saving well.
The striker doubled his tally five minutes before the break turning and finishing into the bottom corner as the home side continued to struggle with the rampant K’s.
The second period was a non-event in comparison but there was time shortly before the end for Flaherty to break clear and slot home the 5th.