
Tyson Gay won his third gold at the world championships. For Allyson Felix, it is two and counting. With his ninth race in eight days, double sprint champion Gay ran a devastating final curve on the US 4×100 relay team to set up his triple. Only Carl Lewis and Maurice Greene have achieved such a feat before at a single world championship.
Felix can join the select group of triple titlists if she can help the US 4×400 relay team to victory on Sunday.




