Watch: slow-motion video of 17-year-old Mondo Duplantis' record-breaking pole vault

Mondo Duplantis (17) set a new world record for outdoor pole vaulting when he cleared 6.16m  (more than 20 feet, 2 inches) at Diamond League Stockholm. He broke his previous world record by 1cm.

The slow-motion video shows the details of the incredible achievement. — Read the rest