Another sound changeover saw Yohan Blake tear around the top bend past Tyson Gay .
The final changeover to Usain Bolt was not as good as Tyson Gay 's pass to Ryan Bailey and both teams began the final leg level .
Another sound changeover saw Yohan Blake tear around the top bend past Tyson Gay , but the final changeover to Usain Bolt was not as good as Gay 's pass to Ryan Bailey and both teams began the final leg level .