The incident occurred after Thomas missed a par putt throughout the Sentry Match of Champions’ third spherical in Hawaii.
“I am an grownup. I am a grown man. There’s completely no motive for me to say something like that.
“It is horrible. I am extraordinarily embarrassed. It isn’t the sort of individual that I’m … However sadly I did it and I’ve to come clean with it and I am very apologetic.
“I deeply apologize to all people and anyone who I offended and I will be higher due to it,” added Thomas.
“As he expressed after his spherical, we agree that Justin’s remark was unacceptable,” the PGA Tour stated in a press release in response to the AFP information company, which added Thomas is prone to be fined for conduct “unbecoming of knowledgeable.”
Going into Sunday’s closing spherical Thomas is tied for fifth place, 4 pictures behind co-leaders Harris English and Ryan Palmer.