Australia skittled Pakistan on a treacherous Perth pitch to record a thumping 360-run victory in the first Test inside four days, with Nathan Lyon achieving the elusive landmark of 500 Test wickets on Sunday. Pakistan were blown away for 89 all out in the final session on Day 4 for their 15th consecutive Test defeat in Australia after the home team set up a daunting 450-run target when they declared their second innings at 233-5 around half an hour after lunch. Pakistan's top-order batters crumbled against the relentless pace of Mitchell Starc, Josh Hazlewood and captain Pat Cummins on a wicket that had variable bounce with plenty of batters taking body blows.