Victorian Brett Coletta is in fine touch heading deep into the Australian amateur matchplay competition.
Coletta, a Golf Australia national squad member, warmed up for the afternoon third round with a thumping 6 &4 win over South Korea's Je-chang Ryu at Metropolitan in the morning matches.
The 19-year-old from Woodlands, among nine Australian players into the last 16, is proving his worth under the heat of matchplay duels to compliment his stroke play prowess as medallist at the 2015 US amateur and third in last year's Riversdale Cup.
Riversdale Cup victor Travis Smyth is also through to the last 16 with a 3 & 2 win against Metro pennant member Blake Collyer.
Queensland's Charles Pilon followed up his leading qualifier status to book a place in the third round with a one-up win over Seung-bo Jang of South Korea.
Pilon fell two holes behind early in the round before fighting back to square on the back nine.
He drained a 6m birdie putt at the 16th to edge ahead and then had to hole a tricky 2m par putt to clinch victory after his approach shot found a front bunker at the 18th green.
NSW's Joshua Armstrong is in top form too with a convincing 5 & 3 success against Victorian DJ Loypur.
Young Royal Melbourne club champion Matias Sanchez surging into the third round with a 6 & 5 win over Canadian Eric Banks.
Scot Grant Forrest, British amateur finalist, triumphed one-up in an international battle with Owen Edwards of Wales. It sets up an all-Scottish afternoon duel with Jack Mcdonald.
Third round match-ups
Charles Pilon (Aus) v Luke Brown (NZ)
Sung-ho Yun (Sth Korea) v Evan Griffith (Wales)
Harrison Endycott (Aus) v Lawrence Ting (Taiwan)
Connor Syme (Scot) v William Heffernan (Aus)
Travis Smyth (Aus) v Joshua Armstrong (Aus)
Grant Forrest (Scot) v Jack Mcdonald (Scot)
Austin Bautista (Aus) v Brett Coletta (Aus)
Matias Sanchez (Aus) v Shae Wools-Cobb