How Fast Is Usain Bolt (peak)?

The fastest human who ever lived. Usain Bolt hit 12.4 m/s between the 65-80 m marks of his 9.58s world record — a peak biomechanists believe is within 5% of the theoretical human limit. His stride covered 2.77 metres at full speed.

Usain Bolt covered 2.77 metres per stride at peak speed — taking only 41 strides to cover 100 metres.

• 9× faster than walking
• Within 5% of the theoretical human limit