Hernando Rangel, 34, was performing in Madison Square Garden when he fell the equivalent of three stories, the New York Post reported Wednesday.
He was rushed to St. Vincent's Hospital where doctors said he was in stable condition late Tuesday with injuries to his lower back, chest and right elbow, but -- against all odds -- no broken bones.
Rangel's pregnant wife witnessed his fall, as did thousands of adults and children.
A Venezuelan native who joined the circus in December, Rangel was working without a net as part of his act featuring high-wire honcho "Crazy" Wilson Dominguez and another man.
He was spinning around on the quarter-inch-wide silver wire when he fell.