During his free fall, Felix Baumgartner reached speeds greater than Mach 1. He broke the sound barrier and became the first person to achieve supersonic speed in free fall without the aid of a vehicle. Baumgartner's top speed during his free fall was approximately 843.6 miles per hour (1,357.6 kilometers per hour), which is faster than the speed of sound at that altitude. So the answer is "He reached speeds greater than Mach 1."