Robovie-pc, a toy sized himanoid, won the world's first full length marathon for two legged robot, beating it's closest rival by a single second after more than two days of racing.
Five bipedal machines began nonstop 42.2kilometer race on a 100metre indoor track in western japanese city of Osaka on Thursday morning. One of the competors retired after completing only first lap, but others continued running day and night getting up by themselves every time they fell on the floor or into collision with rivals.
Robovie-pc 40cm tall and weighing 2.4kilograms stormed into first lap with only few laps to go after Robovie-pc lite which have established a comfortable lead and appeared to achieve easy victory, suddenly locked up.
Robovie-pc lite returned to the track and fiercely chased the leaderbut after 422 laps Robovie-pc crossed the finish line in 54 hours, 57minutes, 50seconds organisers said one second ahead of it's rival.
The average speed was 0.77kilometers per hour.
After the dramatic fish the two robots made by vstone co, a robot technology firm based in industrial city which also organised "Robo mara full" race waved their arms and bowed to applause from the crowd.
According to event's rules, competetors were allowed to change batteries and servomotors which regulate the speed and other of robots.
The other two robots still running yet to complete the race by staurday evening.