Fit 'n' Famous

While the world has a case Pippa fever, Kate Middleton's younger sister is only fueling the fire with her iron woman ways. She's been competing in serious races every few weeks, including the 50-mile Highland Cross duathlon on June 18 in Scotland. Pippa finished the race -- which involves a 20-mile run followed by a 30-mile bike race -- in just over five hours, finishing 12th out of 150 women. Impressive! Peter Jolly/Splash News - June 20, 2011

While the world has a case Pippa fever, Kate Middleton's younger sister is only fueling the fire with her iron woman ways. She's been competing in serious races every few weeks, including the 50-mile Highland Cross duathlon on June 18 in Scotland. Pippa finished the race -- which involves a 20-mile run followed by a 30-mile bike race -- in just over five hours, finishing 12th out of 150 women. Impressive! Peter Jolly/Splash News - June 20, 2011