It might take them a good 92 hours longer than the fastest human runners, but a group of five pint-sized humanoids have officially embarked on the world's first full-length robot marathon. The Robo Mara Full, put on by Japanese robotics company Vstone
, kicked off this week in Osaka, Japan, and will see the mechanized competitors through a 42 kilometer (26 mile) race, estimated to last several days. During the marathon, entrants will circle a 100-meter indoor track a total of 422 times with little help from their human coaches -- contact is only permitted during battery and servo replacement. Vstone's Robovie-PC
led the pack at the outset, but with three days left to go, it's still any robot's game. You can check out a live feed of all the, uh, slow and furious action at the coverage link below, and get a full overview of the race, complete with embarrassing translation, by following the source link.