Want to know how top athletes like Serena Williams achieve their combustible mix of electric speed and long-haul endurance? Find out with this custom-made workout, designed to improve your running speed, build endurance and give you a boost when you need it.

Through this thirty minute workout set of high octane hits by Timbaland, Nicole Sherzinger, Fergie and others, Serena coaches you through a dynamic sequence of running intervals developed by world class trainer, Jay Blahnik. Serena’s there to keep your edge sharp and offer tips and encouragement while you set the pace.

Tune in, turn it up and get going.

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