Earthquake

[UMP25]

Originally Posted by Rich Ives

Pro rules shouldn't be used for amateur games.

But they often are, much to my happiness. A summer collegiate league I assign utilizes OBR with a couple exceptions (10-run rule; NCAA FPSR; collision rule). Yet another I work also utilizes OBR. Up until a couple years ago, NAIA utilized OBR, until they went to NCAA. (However, they retain several OBR exceptions.)