A Chicago man made an attempt to break a Guinness world record for the fastest 10 meters walked while holding a balloon between his knees.
Chestnut devoured 83 all-beef hot dogs and buns in 10 minutes while Kobayashi ate 66 hot dogs and buns.
He's also the world's oldest surviving male World War II veteran, according to Guinness World Records.
Together, they have a combined age of just under 571 years -- and counting.
A runner set an unofficial world record for the fastest men's marathon time at the Chicago Marathon.
It's never too late to skydive!