More than 20 two-legged robots competed in the world’s first humanoid half-marathon in China on Saturday, and – though technologically impressive – they were far from outrunning their human masters over the long distance.

Robots race against humans for first time in Chinese half-marathon - Not all the robots completed the race, but some humanoids wore running shoes

By Eduardo Baptista and Alessandro Diviggiano BEIJING (Reuters) -Twenty-one humanoid robots joined thousands of runners at the Yizhuang half-marathon in Beijing on Saturday, the first time these machines have raced alongside humans over a 21-km (13-mile) course.