The Belfast, Northern Ireland hosted Boccia World Championship were held in August 2011, and Peña participated. The event was part of the ranking process to qualify for the London Paralympic Games. Playing in the team competition, her team was eliminated in the group stage following loses to Croatia, Greece and Singapore. She could not get past the group stage in the individual competition either. In January 2012, she participated in a boccia training camp organized by the Spain Cerebral Palsy Federation of Sports (FEDPC) and the Spanish Sports Federation for Persons with Physical Disabilities (FEDDF) along with 24 other boccia players from around Spain held at CRE San Andrés. The camp was part of national team preparations for the London Paralympics. She competed at the 2012 Summer Paralympics. She won 3–2 in the round of 16. She was a member of Spain's delegation at the European Championships contested in June 2013 in Guimaraes, Portugal. In October 2013, she was ranked the first in her classification in Spain. Playing pairs with Hilario José Pardo for A.R. Deporte Para Todos, the pair were ranked first.