He has played on the second tier United States based tour since then, winning for the first time in April 2009 when he secured a one stroke victory over Chris Tidland at the South Georgia Classic.

After winning his place on the tour at the 2007 qualifying school, he tied for 3rd in the South African Airways Open at the end of the year.

He maintained that form into the 2008 season, as he won two minor tournaments and missed out in a playoff for the Joburg Open, one of the richer European Tour co-sanctioned events.

He ended the year in second place on the Order of Merit behind Richard Sterne, who won all three European Tour co-sanctioned events.

A shaky 2010 season cost Mulroy his PGA Tour card, as he made six cuts in 19 events.