Pretty sure a car can smash any record as well. Or a remote controlled car. Or an autonomous car. What are the metrics here? The legs? The robot didn't hop into a plane, booked a hotel and got into an uber who drove him to the track. I'm pretty sure fast robots exist for some time, they juat didn't look humanoid, which also seems like a weird metric. If you want to go faster, build something better than a bipedal humanoid.