American champion juvenile colt Boston Harbor (Capote-Harbor Springs, by Vice Regent) passed away from the infirmities of old age on Mar. 9, Japan Bloodhorse Breeders Association's Shigeki Yusa announced via Twitter on Thursday. The pensioned stallion was 27. "Boston Harbor passed away from old age on March 9," Yusa said in a tweet. "We are truly saddened to lose him and are grateful for all the support from his fans over the years." Bred by Overbrook Farm in Kentucky, the homebred was trained by Hall of Famer D. Wayne Lukas....