She began her career as a specialist in the 100 metres hurdles and horizontal jumps. She was the sprint hurdles champion and long jump runner-up at the 2002 South American Youth Championships in Athletics and went on to win the hurdles at the 2003 South American Junior Championships in Athletics, where she was also fifth in the triple jump. She took up the heptathlon in 2004 and made her breakthrough at the national level the following year, winning the Brazil championships with a personal best of 5378 points. In her first international appearance in the combined events, she came fourth overall at the 2005 South American Championships in Athletics. The following year she competed in Europe for the first time, gaining 4584 points at the Multistars meet in Desenzano del Garda. She improved her best to 5611 points on home turf in São Paulo and demonstrated her versatility at the 2006 Lusophony Games the following month, claiming the hurdles title and helping the Brazilian women to gold medals in the 100 and 400 mrelay events. Following a personal best score of 5897 points for fourth at the 2007 Multistars meeting, her first continental title came at the 2007 South American Championships in Athletics in São Paulo. Her mark of 5803 points was a new championship record and she also managed a bronze medal in the 100 m hurdles at the competition. She scored over 5800 points again at July's Pan American Games and claimed the bronze medal behind Jessica Zelinka and Gretchen Quintana. As her continent's only representative in the women's heptathlon at the 2007 World Championships in Athletics, she finished in 31st place. Da Silva achieved the Olympic qualifying standard in April 2008, setting a best of 5906 points in Rio de Janeiro. She won the heptathlon gold medal at the 2008 Ibero-American Championships, but did not fare as well at the national championships later that month, as she ended up in fourth. Representing Brazil at the 2008 Beijing Olympics, she came seventeenth in the heptathlon event but broke Conceição Geremias' 25-year-old South American record with her total of 6076 points. She won at the Brazilian Championships in 2009 with a score of 5884 points and then improved her own meet record to win the 2009 South American Championships in Athletics. However, this mark did not stand as she had failed a doping test in the days prior to the competition, testing positive for the banned substance Recombinant EPO. Her coach, Jayme Netto, admitted that he had administered the drug on a number of his athletes. She was stripped of her South American title and banned from the sport for two years for the doping infraction.
Personal
Lucimara da Silva gave birth to her first daughter, Sellena, in December 2013, and her second daughter, Mia, in May 2016.
