Watch on Soap2day. Stardom Triangle Derby I: Opening Round ~New Year Stars 2023~ was a professional wrestling event promoted by World Wonder Ring Stardom, held on January 3, 2023, at the Yokohama Budokan in Yokohama, Kanagawa, Japan. It was the inaugural event for the first-ever Triangle Derby, a round-robin six-woman tag team tournament created by the company.