April 9, 2008 -- A suspected Tamil Tiger suicide bomber detonated a device at the start of a marathon celebrating the start of Sri Lanka's new year. Highways minister Jeyaraj Fernandopulle, former Olympic marathon runner KA Karunaratne and the national athletics coach, Lakshman de Alwis, were among the dozen people killed.
Jan. 4, 2008 -- The Dakar Rally was canceled for the first time in its 30-year history. The threat of an attack from al Qaeda made the race too risky for the organizers.
March 3, 2009 -- The Sri Lankan cricket team bus was attacked by masked gunmen as they traveled in their team bus outside a stadium in Lahore, Pakistan. Seven people were killed in the attack and six of the Sri Lankan cricket players were wounded.
Jan. 8, 2010 -- Assistant coach Abalo Amelete and communications director Stanislas Ocloo of the Togo soccer team were killed when gunmen fired on the team's bus in Angola, site of the African Cup of Nations soccer tournament. The Angolan driver was also killed and nine members of Togo's party were wounded including Togo's reserve goalkeeper.
April 15, 2013 -- Two bombs exploded in the crowded street near the finish line of the Boston Marathon, killing two people and injuring more than 130 others. The explosions occurred about four hours into the race and about three hours after the men's winner crossed the line. By that point, more than 17,000 of the runners had finished the race, but thousands of others were farther back along the course.
