After bringing the hands together and separating, the pitcher swings her hand/ball around side to side in front of her, in almost a dance-move motion before swinging back and beginning the windmill motion. I spoke with the UIC after the game and she said it was legal. I looked at the likely-to-apply rules and found it was not as clear as I thought:
8.01
(k) The pitch starts when one hand is taken off the ball after the hands have been placed together.
(l) The pitcher must not make any motion to pitch without immediately delivering the ball to the batter.
The pitcher must not make a stop or reversal of the forward motion after separating the hands.
After rereading the above rules, I can't see an issue with it.
8.01
(k) The pitch starts when one hand is taken off the ball after the hands have been placed together.
(l) The pitcher must not make any motion to pitch without immediately delivering the ball to the batter.
The pitcher must not make a stop or reversal of the forward motion after separating the hands.
After rereading the above rules, I can't see an issue with it.