The World Humanoid Robot Games delivered three days of robotic competition in events like running, boxing and soccer.

Humanoid robots danced, boxed, played music and modeled clothes as Beijing opened the first World Humanoid Robot Games, featuring 500 robots from 16 countries in sports and stunts.

The latest humanoid robot on the market can purportedly run across a grassy lawn, do cartwheels and even fist-fight – and it costs less than $6,000. In a promotional video from China’s Unitree ...