British astronaut Tim Peake running London Marathon from space

British Astronaut Tim Peake will undoubtedly have an out-of-this-world running time when he completes the London Marathon this Sunday.

As thousands of runners prepare to run in London on Sunday, Peake will be running the 26.2 mile course from a treadmill aboard the International Space Station.

This isn’t Peake’s first London Marathon, but it may be the hardest. He ran in 1999, but while running on Earth is difficult, running strapped to a harness aboard the space station isn't always comfortable.

Peake told the Associated Press that the harness, which secures his body to the treadmill, rubs against his shoulders and waist.

Peake, who has been aboard the space station since December, told AP he hopes to finish the race in less than four hours. And despite training often, he notes that like most runners he will probably have tough times during the run.

"I have certainly been putting in time on the T2 treadmill," Peake told the BBC during a broadcast from space. "I've done a few half marathons and a little longer distance as well ... I’m sure there will be a few points where I wish I had done a bit more training."

Good luck!

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