WESTERN Australia remains undefeated in this year's NAB AFL Under-18 Championships after thrashing South Australia by 64 points at AAMI Stadium on Sunday.

The Sandgropers 15.12 (102) defeated the Croweaters 4.14 (38) in a curtain-raiser to the Port Adelaide v Carlton clash.

Although South Australia displayed some grit in the second term, Western Australia produced a commanding second half with nine goals to one.

Gun Western Australian duo Nick Naitanui (18 touches, 13 hit outs and five hard-ball gets) and Daniel Rich (18 disposals, eight inside 50s and four clearances) again showed why they are two of the leading draft prospects in the country with fine performances.

But the matches of Nicholas Olds (four goals), Stephen Hill (16 touches), Clancee Pearce (20 disposals) and Jesse Laurie (21 possessions) were also outstanding for Western Australia.  

For South Australia, Lewis Johnston impressed and was his team's best. His six contested marks from 10 grabs was a feature of his play. He also claimed five inside 50s and was just one of four South Australian goalkickers.

Western Australia 5.2   6.4   11.9   15.12 (102)
South Australia     1.3   3.7     4.9     4.13   (37)
 
GOALS
Western Australia:
Olds 4, Yarran 2, Bennell, Naitanui, Daly, Pearce, Jetta, Marsh, Warner, Hill, Ross
South Australia: Hartlett, Mardling, Cahill, Redden
 
BEST
Western Australia:
Hill, Pearce, Laurie, Jetta, Naitanui
South Australia: Johnston, Schoenmakers, Cahill, O’Keefe

The 2008 Division One NAB AFL Under 18 Championships will conclude with a triple-header at Telstra Dome on Wednesday, July 9. All three matches will be broadcast live on Fox Sports 1.