Registration for the 2015 B.A.A. Distance Medley (B.A.A. 5K on April 18; B.A.A. 10K on June 21; B.A.A. Half Marathon, presented by Dana-Farber Cancer Institute and the Jimmy Fund, on October 11) opened on Monday, January 26 at 10:00 a.m. ET and will continue through Thursday, January 29 at 5:00 p.m. ET, available space permitting.