Introducing the incredible 'Iron Nun'!
She's known as the 'Iron Nun' as Sister Madonna Buder doesn't give up easily.
"If you put your mind to it, anything is possible..."
An 86-year-old nun is taking the triathlon world by storm - outside of her church hours, of course.
She's broken more barriers than people half her age and she's now become known as the 'Iron Nun'.
Sister Madonna only started running at the age of 48 and she's now taken part in Ironman triathlons for more than 30 years.
Her theory?
She says: "The only failure is not to try."