Tina Rupprecht W10 Sumire Yamanaka ... Germany's Tina Rupprecht was crowned unified atomweight champion in her home country. The 32 year-old Rupprecht handed previously undefeated Sumire Yamanaka of Japan her first loss. Rupprecht's triumph came via decision after an exciting fight at the MBS Arena in Potsdam in front of 2,500 spectators. Rupprecht, who is barely five feet tall and is nicknamed “Tiny Tina,” was quick on her feet and the more active boxer overall. Her Japanese opponent launched a few counterattacks but in the end, Rupprecht prevailed thanks to her greater variability. Rupprecht entered the fight as WBO, WBA, and WBC champion, while Yamanaka came in with IBF recognition.