Siblings Ryan and Gabi Ruffels are spearheading a hot day for Australian professional and amateur golfers across the world.
While most of the golf world's attention is on the US PGA Championship, where Jason Day was in major contention, the Ruffels, as well as siblings Minjee and Min Woo Lee, are in vying at their respective tournaments.
Korn Ferry Tour pro Ruffels shot a stunning second-round 63, featuring eight birdies and no bogeys, at the Portland Open.
Former world junior champion Ruffels is one shot behind the lead at the secondary circuit event at North Plains, Oregon.
It comes a week after the 22-year-old squandered a two-shot lead going into the final round of the Korn Ferry Tour event in Omaha where he was chasing his first win.
Ruffels' younger sister Gabi has reached the quarter-finals of the US Women's Amateur, which she won last year becoming the first Australian to do so.
Ruffels defeated Teresa Toscano Borrero 4 and 2 after winning four of the last five holes.
The 19-year-old daughter of former tennis stars Ray Ruffels and AnnaMaria Fernandez is aiming to become the first player since Danielle Kang (2010-11) to successfully defend her title
Across the Atlantic, Perth's Min Woo Lee sits fourth in the English Championship after a 67 to go with his opening 64 in Hertfordshire.
The former US Junior winner sits at 11 under, three shots from the lead,. Lee's fellow Australian Jason Scrivener (69) also remains inside the top 20 in that tournament.
Big-hitting Lee is considered the future of Australian men's golf having won who the Victorian Open earlier this year.
His elder sister, LPGA Tour winner Minjee Lee, is in contention yet again at the Marathon Classic in Ohio having fired a second round of 67 to be five shots off the pace after 36 holes.