The website reported that Favor Hamilton worked under the alias "Kelly Lundy" but said she told some of her clients about her true identity and suspected one of them outed her.
Soon after the story appeared online, Favor Hamilton released a series of tweets saying in part that she was "drawn to escorting in large part because it provided many coping mechanisms for me when I was going through a very challenging time with my marriage and my life."
A nine-time NCAA champion for Wisconsin, Favor Hamilton is the namesake of the Big Ten's Suzy Favor Athlete of the Year Award, given to the conference's top female athlete.
Neither Favor Hamilton nor officials from the Big Ten immediately responded to requests for comment.
Favor Hamilton is a three-time outdoor 1500m national champion and a three-time indoor national champion - her last title coming in 1999.
"As crazy as I know it seems, I never thought I would be exposed, therefore never hurting anybody," she said in one Twitter post.
In another, she says she is seeking psychological care for her problem.
She closes her series of tweets by saying, "I fully intend to make amends and get back to being a good mother, wife, daughter, and friend."
- AP