Is this an illegal pitch

[MD Longhorn]

Originally Posted by paulg68

I saw that, but that shows the NP foot outside to start. So how you interpret that if her heel hits the rubber width line toward the catcher she would be legal then correct? As long as she starts with NP inside the rubber's width.

If either foot is completely outside (i.e. NOT touching the 24" width at all) the 24", it's illegal. You seem hung up on whether the NP foot started inside or outside mattering wrt where it ends up. Keep in mind that 99% of the illegal pitches of this variety are exactly that... NP starting on the pitchers plate, and ending up 6 inches outside the 24" - doing that is illegal.