Obstruction vs. interference
 

I know one is when the offense commits the foul and the other is defense. I can just never remember which is which.:mad:

Anyone have a "trick" to remember this? I'm a parent & (sometimes) assistant coach.

An obstruction is something you have to go around, right? Well, when a runner is obstructed, they have to go around someone.

So
obstruction = defensive foul
interference = offensive foul

Thanks

Heck. I just remember them. That is my trick. :D

And how long have you been doing this? It's my third year as a SB parent, and second as coach.:p

You want the answer in years or decades? :D

I have been umpiring for about the same amount of time.....................







...............in dog years. :D

Really, though, I don't know of any special trick to remember them. Just keep telling yourself that DO, defense obstructs, and OI, offense interferes. There you go, mnemonics for you. "DO you know any Yiddish? OI, I say I do."

My menmonic is: The defense Obstructs the Offense

Read the rule book often.....