Tina Rupprecht Added the Final Belt in a Hard-Fought
Tina Rupprecht became undisputed atomweight champion by defeating Sumire Yamanaka in Potsdam, Germany, on April 5, 2025. The ten-round contest at MBS Arena ended by majority decision, with scores of 99–91, 96–95 and 95–95.
Yamanaka brought the remaining championship
Rupprecht entered with the WBA, WBC and WBO belts after defeating Eri Matsuda the previous November. Yamanaka held the IBF championship and arrived without a professional defeat.
The matchup therefore offered Rupprecht the opportunity to complete the four-belt collection. Winning the IBF title would consolidate the championships she had already gathered rather than begin an entirely new reign.
Pressure met accurate counterpunching
Yamanaka pressed the action and made Rupprecht work throughout the contest. The German relied on accurate replies and composure under pressure to create the cleaner scoring opportunities.
The judges differed considerably in their assessment of the ten rounds. One awarded Rupprecht a wide advantage, another favored her narrowly and the third returned a draw, producing the majority verdict.
The Matsuda victory had created the final opportunity
On November 23, 2024, Rupprecht defeated Matsuda by unanimous decision in Heidelberg. That win added Matsuda’s WBA and WBO championships to the WBC belt Rupprecht already possessed.
The Yamanaka result completed the next stage by bringing in the IBF crown. Rupprecht finished the Potsdam contest with fifteen wins, one defeat and one draw, while Yamanaka’s previously unbeaten record received its first loss.
Sources
- WBC: IBF challenger, majority scores and undisputed outcome
- WBC: April 5 event date and Potsdam venue
- WBA: Matsuda victory and three-belt history
- WBA: Yamanaka’s pressure, Rupprecht’s counters and post-fight records
