You think you're cold? Try running a marathon in minus-36 degrees like Boris Fyodorov.
The Siberian native completed what's being called the coldest marathon on record on New Year's Eve, running a solo course from his home in the Siberian village of Oymyakon, according to the Siberian Times.
He completed the 26.2-mile course -- his first marathon ever -- in just over five hours.
Next time? Fyodorov wants it to be even colder.
"I really want to organize [the] next Oymyakon marathon in January when the air goes down to -50 C or -60 C," he told the Times.
Oymyakon is considered one of the coldest places on Earth, with a record-low temperature of 90 below zero recorded in 1933.