The Lakes Golf Club showed its teeth early with several players in the morning field racking up massive numbers on the some of the famed layout's more devilish holes.
South Australian Antonio Murdaca got his campaign off to a disastrous start, carding a 10 at the par-four 1st hole, which is a relatively short par-4 but an intimidating one with water down the entire left side.
American Brendan Steele - a 3-time winner on the PGA Tour - took a nine on The Lakes' treacherous par-5 11th.
It's far from the first time The Lakes' 11th hole has been the downfall of a high profile professional.
Steele's countryman John Daly famously walked off the course on the 11th hole during the 2011 Australian Open after hitting a handful of balls into the water in a scene reminiscent of the Kevin Costner film Tin Cup.
The dangerous opening hole at The Lakes Golf Club in Sydney.
Steele was able to immediately repair some of the damage with back-to-back birdies at the 12th and 13th holes and eventually signed for what was an impressive 1 over round of 73.
Murdaca's fortunes did not improve after his woeful start and he sits comfortably in last place at 14 over following a round of 86.
The 23-year-old wasn't the only player to card a 10 on day one at The Lakes.
New South Welshman Matthew Giles made one on the par-five 14th on his way to an opening round of 82.
South Korean Byeong Hun An led the morning wave with an impressive round of 67 that included an eagle at the par-5 8th.
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