Western Australia 8 for 270 (Inglis 85, Philippe 55, Thornton 3-57 ) beat South Australia 6 for 266 (Hunt 103, Tye 2-53) by two wickets

Inglis, playing his third match since missing out on the T20 World Cup after a freak injury playing golf, was back to his belligerent best with nine boundaries and a six in his 70-ball knock.

It was WA's fifth straight victory to skip clear of second-placed South Australia, who have three wins and two losses.

"It was a bit dicey towards the end...but it was nice to get over line and AJ (Tye) to hit the winning runs," Inglis said.

After receiving a dressing down from coach Jason Gillespie following their capitulation in the Sheffield Shield earlier in the week, South Australia were far more competitive on a friendlier pitch for batting amid warm conditions nudging 30 degrees.

Hunt, who has been tipped as a future Test opener, played the short ball well to continue his good form in Perth after looking a class above his team-mates in the Shield match.

"It's nice to get the first one (century) off but disappointing we couldn't get the win coming so close at the end," he said.

He found a willing ally in Nathan McSweeney in a second-wicket century stand, but South Australia's slow start ultimately backfired. Tye became WA's most prolific wicket-taker in 50-over cricket when he claimed Nathan McAndrew on the last ball of South Australia's innings.

It was his 104th career wicket to overtake Kade Harvey, who is the current WA cricket general manager.