Having gone to College in the US, Rhein Gibson turned Professional in 2010. He earned status on the PGA Tour of Australasia in 2011 via Qualifying School however only played two events that season and lost his card. Still relatively unknown to Australian golf, Gibson fired a record 16-under 55 in 2012.
The following year he earned status on the OneAsia tour which allowed him starts in the co-sanctioned Australian PGA Championship and Australian Open. He finished 23rd on the PGA Tour of Australasia Order of Merit which earned him a full card on to the Tour in 2014. He also secured a card for the Web.com Tour in 2015 via Qualifying School. His most notable finish of 2015 was a T4 in the Web.com Tour Championship which also sealed his ticket to the PGA TOUR for the 2015/2016 season.
Since 2013, Rhein has recorded 18 top 10 finishes including 5 second places. Yet to record a professional victory as a professional.
Most recently, Gibson finished T5 at the Nashville Golf Open on the Web.com Tour.
- Most well known for holding the Guinness World Record for lowest ever round of golf; shooting 16-under-par 55 at the River Oaks Golf Club in Oklahoma (his local course)
- In 2012 he fired a 16-under 55 at River Oaks Golf Club.
- Earned a place in the 2014 Open Championship, his first Major, earned by finishing T4 at the 2013 Australian Open
- Predominately plays on the Web.Com Tour