This Man Just Turned 50—and Ran an Astonishing 2:15 Marathon, Shattering the Age Group World Record by 4 Minutes
Mark Kiptoo averaged 5:10 pace at the Frankfurt Marathon to reset a 35-year-old masters mark. Mark Kiptoo has had some pretty memorable trips to Frankfurt. He won the city's marathon in 2014, returned four years later to set a then-world record for…