The World Record for running a half marathon backwards is 1 hour 40 minutes
You can run a marathon in the desert, at the North Pole, or even around Mount Everest
The oldest marathon finisher is British citizen, Fauja Singh. The 100-year-old finished a marathon in a time of 8 hours, 25 minutes and 16 seconds.
The youngest marathon runner in the world is Budhia Singh. He has already finished 48 marathons before his fifth birthday.
Kenyan runner, Eliud Kipchoge, is the fastest marathon runner in the world. He set the record at a time of lower than an hour
Over a billion pairs of running shoes are sold worldwide every year.
Just 15 competitors ran the Boston Marathon in its inaugural year, 1897.
Running with music can boost your performance by 15%.
It takes 200 muscles to take a step when you run.
The fastest human footspeed on record was set by Usain Bolt during a 100-meter sprint with a speed of 44.72km/h (27.79 mph!!)