FiveFrameSwing
Banned
I would accept that vast majority of pitchers cannot throw a riseball and the result is bullet spin. But that is not a riseball. Rather it is typically a fat, flat pitch destined for the cow pasture beyond the outfield fence.
No, it is a riseball .... in that the pitch has the same profile as a riseball thrown with a perfect back-spin ..... and I truly welcome data to the contrary. The closest true back-spin pitches I've seen have virtually the identical pitch profile as a bullet-spin riseball.