Bat 10, Field 9 with free substitution

Play each other twice, playoffs to be determined by final league position (1 and 2 bye, 3 vs. 6, 4 vs. 5- home field higher seed)

Bats –7 or higher
Baseballs (Babe Ruth- Wilson)
Balk Rule (tightened as year goes on)- 1 warning per pitcher
7-inning game
10 run rule after 5inning, last inning will not begin after six
No head first into home, no collisions with catchers
Courtesy runner for pitch/catch with 2 outs