The 80-year-old Ironman triathlon finisher who isn't slowing down: 'This is my passion'

Natalie Grabow became the oldest woman ever to finish the grueling, 140.6-mile Ironman World Championship triathlon last ...
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80-year-old grandmother becomes oldest woman to finish the Ironman World Championship

For most of Natalie Grabow's life, she didn't know how to swim. At age 59, she decided to change that, so she could face an even bigger challenge. "It was a big hurdle I had to overcome," Grabow told ...