Is 661 inches per second as fast as a Knuckleball (baseball)?
It's about three-fifths as fast as a Knuckleball (baseball)
The speed of a Knuckleball (baseball) is about 1,200 inches per second.
(a.k.a. knuckler, a.k.a. floater, a.k.a. dancer, a.k.a. butterfly ball) (major league average)
The average speed of major league knuckleball pitch is 1,200 inches per second. Eddie Cicotte, who was later implicated in the 1919 Black Sox scandal, is credited with developing the pitch ca. 1906.
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