<p>Men and women will compete in 4x100M and 4x400M relays with women also in a sprint medley relay and men contesting a distance medley relay. More than 180 athletes from 16 nations also will compete including lineups from Australia, Canada, Kenya, Morocco, Brazil and Britain.<br /><br />While Usain Bolt will not be on hand to try and beat his 8.79-second anchor leg from 2010, Jamaica will have 100M stars Asafa Powell, Michael Frater, Nesta Carter and Steve Mullings, who owns the season’s best time in 9.90 seconds.<br /><br />They face an American lineup that includes five of last year’s top 10 at the distance, including 2011 US pace-setters Ivory Williams and Mike Rodgers, reigning US 100M champion Walter Dix and 200M champion Wallace Spearmon plus Darvis Patton and Shawn Crawford.<br /><br />Two-time world champion and Olympic runner-up Kerron Clement, two-time US runner-up Johnny Dutch, Kansas Relays winner Bershawn Jackson and fellow hurdles veteran Angelo Taylor lead a US bid for an 11th 400M title in 12 tries.<br /><br />Kenya and the World All-Stars have won every distance medley relay since the event began in 2006 and the American bid to end the drought will be tested by Australia, Kenya, Canada and first-time meet competitor Ethiopia.</p>
<p>Men and women will compete in 4x100M and 4x400M relays with women also in a sprint medley relay and men contesting a distance medley relay. More than 180 athletes from 16 nations also will compete including lineups from Australia, Canada, Kenya, Morocco, Brazil and Britain.<br /><br />While Usain Bolt will not be on hand to try and beat his 8.79-second anchor leg from 2010, Jamaica will have 100M stars Asafa Powell, Michael Frater, Nesta Carter and Steve Mullings, who owns the season’s best time in 9.90 seconds.<br /><br />They face an American lineup that includes five of last year’s top 10 at the distance, including 2011 US pace-setters Ivory Williams and Mike Rodgers, reigning US 100M champion Walter Dix and 200M champion Wallace Spearmon plus Darvis Patton and Shawn Crawford.<br /><br />Two-time world champion and Olympic runner-up Kerron Clement, two-time US runner-up Johnny Dutch, Kansas Relays winner Bershawn Jackson and fellow hurdles veteran Angelo Taylor lead a US bid for an 11th 400M title in 12 tries.<br /><br />Kenya and the World All-Stars have won every distance medley relay since the event began in 2006 and the American bid to end the drought will be tested by Australia, Kenya, Canada and first-time meet competitor Ethiopia.</p>