Chantelle Cameron W10 Michaela Kotaskova ... At London's Olympia, Chantelle Cameron defeated Michaela Kotaskova to win WBO junior middleweight title and called for Mikaela Mayer next. Cameron won first women's world title fight to be contested over three-minute rounds on United Kingdom soil. With the win, Cameron also became a two-weight world champion as she secured the vacant WBO title with a unanimous decision victory over Kotaskova of the Czech Republic. Cameron, a former undisputed world champion at 140 pounds and the sole professional conqueror of Katie Taylor, was stepping up to 154 pounds for this fight. She came into her own at that distance, winning a unanimous decision, 100-90 and 99-91 (twice), after ten three-minute rounds.