Her definite international breakthrough came in 2007. She improved both her personal best jumps with good margins. In May in
Belém she jumped 6.88 metres, In May she had become the first South American woman to break the 15-metre-barrier. However, her 15.10 m jump in
Uberlândia,
Brazil had a
tail wind of 2.7 m/second, and thus could not be accepted. When jumping 14.57, she established a new South American record. At the
2007 Pan American Games she won two silver medals, In the 2009 season, she won the
Troféu Brasil Caixa de Atletismo with a season's best of 6.79 m, putting an end to rival
Maurren Maggi's decade-long dominance of the championships. She became the continental long jump champion for a second time at the
2009 South American Championships in Athletics. The long jump at the
2009 Lusophony Games was a head-to-head with Portugal's
Naide Gomes and Costa took the silver medal, three centimetres back with a mark of 6.71 m. Her focus turned to the
2009 World Championships in Athletics, but she failed to record a mark in her three attempts in the long jump final. She closed the season with a seventh-place finish at the
2009 IAAF World Athletics Final. She opened 2010 with her first podium finish on the global stage: competing in the long jump at the
2010 IAAF World Indoor Championships, she twice jumped 6.63 m to secure the bronze medal behind
Brittney Reese and Gomes. She became a double Brazilian champion later that year with victories in both the long jump and triple jump at the Troféu Brasil Caixa de Atletismo. ==Personal life==