Her first significant international achievement was winning silver medal at the 2007 European Indoor Championships in Birmingham.

In February 2007, she cleared 2.00 metres in Banská Bystrica, breaking Sara Simeoni's previous Italian indoor record of 1.98 m. She followed this up with a silver medal at the 2007 European Indoor Championships,[2] where she jumped 1.96 m. Di Martino also won the silver medal at 2007 World Championships, having jumped 2.03 m. Her 2008 season was not so successful and she managed only the tenth position at the 2008 Beijing Olympics and closed the year carrying a serious toe injury, making her consider retiring from the sport.

[3] She took bronze at the 2009 European Team Championships and soon after, she beat Blanka Vlašić to win the Golden Gala meeting, jumping 2.00 m in Rome.

She rebounded at the start of the 2011 season, jumping to an Italian indoor record of 2.04 m in Banská Bystrica in Slovakia.

However, the National Athletics Federation (FIDAL) underestimate the nature of the injury, which was diagnosed in the three weeks of rehabilitation.

But less than a month before the Olympics, they learned that the injury was more serious than expected, forcing her to undergo surgery, ruling her out of London.

[9] Her coach in an interview, accused the FIDAL have underestimated the nature of the injury and failing to ensure an athlete who has contributed immensely to Italian sport the right care at the time of rehabilitation.