 On day eight of the Championships was the day of the sprint relays and the women's 4x100 m was without United States meaning that Jamaica were clear favourites as long as they got the baton round which is what they did as the team of Simone Facey 200 m finalist, Shelly-Ann Fraser 100 m gold medalist, Aleen Bailey 100 m finalist and Kerron Stewart 100 m silver medalist on the final leg ran 42.06 to win Jamaica's 6th gold medal.The male quartet were seemingly inspired by their female counterparts as the team of Steve Mullings 200 m finalist, Michael Frater 100 m semi-finalist, Usain Bolt Double World Champion, Triple Olympic champion and Triple world record holder and on the last leg Asafa Powell world bronze medalist as he anchored the team to a new championship record of 37.31.This also meant Jamaica had seven championship golds doubling the tally of all previous championships altogether with one more event to go.