Robots just ran the Beijing half-marathon faster than the world record holder

A humanoid robot won the Beijing half-marathon in 50 minutes and 26 seconds, beating the human half-marathon world record.

The result highlights how fast humanoid robotics is advancing.

Another robot had the fastest raw time, but it was remotely controlled, and some robots ran into trouble on the course.

The race also raised questions about how to compare autonomous machines with human athletic performance.