Who is faster: the Flash or Zoom?

Depends on what Flash and what Zoom we are talking about here. Professor Zoom(Eobard Thawne) is stronger than Barry Allen. Professor Zoom got his Professor title because of his vast knowledge about Speed Force. read more

Zoom is faster than Barry since he can alter time and slow things up for him. But Zoom used V-9 to get speed and tried to steal speed force from Barry. But at this time Barry was slower than zoom. When Barry got tachyon device which increased his speed by 4x, he was able to go faster than Zoom. This means that the flash and zoom can't be compared. read more

In every aspect, the Reverse-Flash is more powerful than Zoom. Zoom's sole winning point is that he is more DANGEROUS. Reverse-Flash kills by necessity, Zoom is a serial killer and a psychopath who revels in pain. SAVITAR VS REVERSE FLASH/ZOOM On the topic of Savitar, Reverse-Flash wins. Hear me out. read more

This has most definitely been done, and also Zoom is faster, Flash only catches up to Zoom by stealing others speed. Zoom even punches harder than Superman and was able to take out Batman, Superman, and Wonder Woman together. read more