(CNN) -- Tyson Gay ran a wind-assisted 9.68 seconds for the fastest 100 meters of all time as he won the sprint final at the ...

BEIJING -- Usain Bolt lowered his 6-foot-5 frame into a too-small seat in the warm-up room and watched on TV as his main rival coasted across the line in a first-round heat at the world championships.

Newly crowned world champion Melissa Jefferson-Wooden left nothing up to chance as she stormed to a new championship record of 10.61 in the 100-meter dash final. Jefferson-Wooden went into these ...