BOSTON – The Boston Athletic Association (B.A.A.) announced that registration for the 2015 B.A.A. 5K has closed after its 10,000 entrant field size limit was reached. The B.A.A. 5K will be held on Saturday, April 18, 2015, two days prior to the Boston Marathon® and will be the first event of the 2015 B.A.A. Distance Medley. Registration opened on Wednesday, February 4 at 10:00 a.m. ET and closed on Friday, February 13 at 3:00 p.m. ET.