The veteran Victorian entered the last of the four tournament Finals series 25th on the mini money list and in position to claim the last card for the 2018 season.
But with four birdies and an eagle against a lone bogey at Atlantic Beach Country Club Percy moved to T20 in the tournament and is now projected to move to 24th on the money list.
He will need to play a good round tomorrow to maintain his position in the field as those behind desperately try to climb the leaderboard but his form all week suggests it is not beyond him.
Percy has signed for scores of 69-67-66 this week to be 11-under and if he can produce another round in the 60’s it would likely be enough to secure his place.
Matt Jones is T12 and the best of the Australians through three rounds of the tournament, his 13-under effort to date seeing him projected 32nd on the money list.
Jones started the week further down the money list than Percy after missing the cut in the first two Finals tournaments but fought back with a good showing last week.
He likely needs to get inside the top five tomorrow if he is to claim one of the 25 cards but, like Percy, his play all week has been good and a score in the low 60’s is within reach.
Heading the other direction on Saturday was Brett Drewitt whose opening two rounds had him inside the top 10 in the tournament and on the fringe of earning a card.
But for the second straight week a poor Saturday has seen him plummet down the leaderboard, six bogeys and a double against two birdies adding up to 77 and dropping him 47 places down the standings.
He also fell down the projected money list from 28th Friday night to 48th heading to Sunday and now seems unlikely to qualify for a second year on the PGA Tour in 2018.
Rhein Gibson was the last of the Australians to make the cut in the season finale but an even par third round sees him 5-under and T56 in the tournament but well out of card calculations, projected at 87th on the money list.
Jonathan Byrd has overtaken Sam Saunders at the top of the leaderboard, a 7-under 63 Saturday seeing him two clear of the 36 hole leader at 20-under.
After opening 59-66, Saunders lost momentum on day three with an even par 70 but barring something bizarre happening has locked up his PGA Tour card for 2018.
SIGNATURE HOLES - 18TH AT CAMPBELLTOWN GC, SYDNEY:
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