Just over a month ago, Dennis Kimetto of Kenya ran the fastest marathon ever, finishing the Berlin Marathon with a record-setting time of 2 hours, 2 minutes and 57 seconds. This means that for more than 26 miles (42 kilometers), Kimetto kept up a blisteringly fast average pace of 4 minutes and 41 seconds per mile (2 minutes and 56 seconds per kilometer).
Image: Free Digital Photos
