Ryo Aitaka

Ryo Aitaka is a retired Japanese kickboxer, who competed in the cruiserweight and heavyweight divisions of K-1. He was a one-time K-1 Cruiserweight title challenger, having challenged for the title in 2020. In 2023, he took up professional wrestling, training at the Ibushi Prowrest Lab, and made his debut for Gleat on December 30, under the ring name Riki Aitaka . ^{Ryo Aitaka, Japanese kickboxer and professional wrestler}

31 December 1989

Born on the same birth date (31 December 1989): Kelvin Herrera

Born on the same birth day (31 December): Amy Cure • Avram Hershko • Chris Hallam • Giovanni Pascoli • Jane Badler • Jeff Waldstreicher • Joe Scally • John Radcliffe (died 1568) • Jonathan Horton • Luke Schenscher • Nigel Rudd • Odetta • Raphie Kaplinsky • Ryan Sakoda • Willye White

Born in the same month (December 1989): Jordin Sparks • Jurrell Casey • Kei Nishikori • Kevin Séraphin • Kyle Hendricks • Onew • Pedro Botelho (footballer, born 1989) • Tamannaah Bhatia • Tom Sexton (rugby union) • Tomasz Narkun • Tomáš Kundrátek • Yong Jun-hyung