The Boston Athletic Association (B.A.A.) today announced that 2013 Boston Marathon® champion Lelisa Desisa and Gebre Gebremariam, who placed third at both the 2011 and 2013 Boston Marathon, will return to Boston and compete in the 13th B.A.A. Half Marathon, presented by Dana-Farber Cancer Institute and the Jimmy Fund. The B.A.A. Half Marathon will be held on Sunday, October 13, 2013 at Boston’s Franklin Park and will include more than 7,500 participants. The event reached its field size limit in twelve minutes when registration opened in July.