( CNN ) -- Wladimir Klitschko dominated his world heavyweight title unification match against Britain 's David Haye to clinch a unanimous points decision in their bout Saturday night in Hamburg , Germany . The giant Ukrainian retained his IBF and WBO versions of the title and claimed Haye 's WBA crown after a polished display over 12 rounds in the Imtech Arena of Bundesliga side SV Hamburg . Klitschko got the verdict of the three ringside judges by large margins of 117-109 , 118-108 and 116-110 . It was the second defeat of 31-year-old Haye 's 27-fight career , most of it at cruiserweight before stepping up a division for his last five fights . The wily , 35-year-old Klitschko , who took his record to 56-3 , used his extra weight and reach advantage to good effect as his jab kept his opponent at bay . He managed to avoid Haye 's desperate attempts to bring the fight to a swifter conclusion and scored the only knockdown of the fight in the 11th round , although the Briton was swiftly to his feet after what appeared to be a push . The bout was held in heavy rain , the fighters largely protected by the design of the arena , but it would have doused the spirits of the large British contingent in the 45,000 crowd who had traveled to the northern German port city to cheer on their hero . The victory leaves all the recognized versions of the world heavyweight boxing title with the Klitschko brothers , with Vitali holding the prestigious WBC version . The pre-fight proceedings had been marked by animosity between both men , who had been due to fight two years ago until Haye pulled out with a back injury . After the fight he revealed he had broken his right toe in training , but had decided to go ahead with the bout , which ultimately ended with a disappointing defeat .
Wladimir then fought David Ortiz in the world heavyweight title unification bout . Ukrainian giant now holds world , WBO and other versions of the title . Klitschko 's brother Vitali is the WBC champion , but they have said they will not fight .