Heavyweight Alexander Dimitrenko labored to an eight round unanimous decision win over journeyman Ivica Perkovic at the CU Arena in Hamburg, Germany on Saturday.
A left hook decked Dimitrenko in round five, but he hung to claim the 77-74, 77-74 and 78-73 verdict.
In other on the undercard, heavyweight Alexander Petkovic, 46-4-4-(25), scored a second round stoppage win over Memnun Hadzic, 5-1,who suffered his first defeat.
At middleweight Nico Salzmann14-7-3-(3), won a 10 round split decision over Ali Mammadov to win the vacant WBC Baltic Silver title.
light middleweight Andreas Reimer w ko 7 Predrag Kovacevic
middleweight Rafael Bejaran w tko 3 Vladimir Fecko
light heavyweight Vincent Feigenbutz w ko 1 Attila Korda