Like many of the runners in Sunday’s Scotiabank Toronto Waterfront Marathon, 100-year-old Fauja Singh has his sights set on breaking a record.

But unlike the 5,000 other entrants in Sunday’s big run, Singh won’t be running with a finish time in mind. Instead, the man whose authorized biography is entitled The Turbaned Tornado, is out to become the first person on the planet to finish a full-distance marathon past the age of 100. If he manages to accomplish the feat, Singh will set a Guinness World Record.

Sunday’s run will be Singh’s eighth marathon. In 2003, in the same Toronto marathon, he set a record in the 90-plus category, finishing the 42.1 kilometres in five hours, 40 minutes and one second.

His coach and interpreter admits the run will be a challenge: He hasn’t completed the full marathon distance since he was 92, a full eight years ago.Read more here.