If you need a little inspiration to lace up those running shoes or to run that extra mile, think about Fauja Singh, who at 101 years old completed his last competitive marathon in Hong Kong about a week ago. Nicknamed the “turbaned tornado” by his fans, Singh took up long-distance running a decade ago to help cope with the deaths of his wife and son. Since then, Singh has run nine marathons around the world, and in 2011, he became the world’s oldest man to ever have completed a 26 mile race, when he finished the Toronto Waterfront Marathon in eight hours, eleven minutes and six seconds.

The secret to Singh’s incredible drive? His simple love for the sport. “It’s because of the happiness I get out of it,” he said. “If something makes you happy, you’ll do it well.”