In sports, there’s nothing like a clean sweep, a shutout, a perfect game or a unanimous decision. Anything close to a unanimous decision in the U.S Supreme Court these days is rare.

Count a gritty marine insurer as part of the exclusive Supreme Court’s 9-0 club; winners by knockout in a hotly contested marine insurance dispute that braved its way from the District of Pennsylvania to the U.S. Court of Appeals for the Third Circuit and ultimately landed in the Supreme Court. And all the fuss was over the insurance contract’s selection of New York law to govern future disputes.