Sunita Williams will run Boston Marathon in space tethered to bungee harness. To run the earth equivalent of 26.2 miles, she will run 210 miles in space void of gravity.
I don't know the funda of how the 26.2 miles became 210 miles, nor do I know how she will complete it in 43.28 seconds. But I do know that she completed Houston Marathon under 3:30 is qualified to run the Boston Marathon if she is on earth and I can only dream of it.
Good Luck Suni & Go Girl