He had also won the New Zealand Amateur Championship in 2003. He finished runner-up at the Australian PGA Championship soon after turning professional.
Heading first to the USA, he played Hooters Tour events there before gaining access to the 2009 PGA Tour via the Tour School in late 2008 where he finished runner-up. He had won the Von Nida Tour’s WA Open just prior to heading for the Tour School
In his rookie PGA Tour season, Nitties finished inside the top ten twice with a best of 4th at the FBR Open in Arizona and eventually retained his status by finishing 91st on the money list that year. He would lose status the following year despite finishing 3rd in Puerto Rico and, although he would win on the then Nationwide Tour in 2011, he finished just outside the top 25 and was unable to get back to the PGA Tour.
His wins on the PGA Tour of Australasia would come when successful at the 2011 Vic PGA Championship and the 2015 South Pacific Open. Perhaps more significant performances on the PGA Tour of Australasia however would come when runner-up at the 2004 Australian PGA Championship and when again runner-up at the ISPS Handa World Super 6’s.