In high school baseball, the pop-up slide is generally legal, but it becomes illegal if runner executes a pop-up slide and makes contact with a fielder and/or interferes with a fielder’s attempt to make a play. Typically, this occurs at 2nd base – the defense is attempting to turn a double play, and R1 executes a pop-up slide to try to “break it up.” If R1’s pop-up slide makes contact with or interferes with the fielder, he has violated the Force Play Slide Rule. R1 would be ruled out, and the B/R would also be ruled out. I think that’s what you’re getting at, Chris. In High School baseball, it is illegal to break up a double play with a pop-up slide.
