Usain Bolt's bid to bring the curtain down on his glittering career with a 15th world gold medal remained on track as Jamaica qualified for the final of the 4x100m relay. Bolt took the unusual step of ...

RIO DE JANEIRO -- Undefeated, uncatchable, unquestionably the best. Usain Bolt bid a blazing-fast farewell to the Rio de Janeiro Olympics, and probably the Olympics altogether, Friday night with yet ...

RIO DE JANEIRO - The U.S. men's 4x400-meter relay held off a late challenge by Jamaica to rebound and win gold in the event, a day after the Americans' 4x100 relay men's team was disqualified. Bahamas ...

USA Track and Field has officially filed an appeal after the men's 4x100-meter relay team was disqualified from Friday night's final at the Rio Olympics. The U.S. finished the race third but was ...

Carter's positive re-test disqualified the Jamaican 4x100m relay from gold at the 2008 Beijing Olympics. Usain Bolt's feat of winning Olympic gold in the 100, 200 and 4x100m relay at three consecutive ...