The top two teams from each division make the playoffs -- the division winner and the runner-up. Tiebreaker rules are based on the following:
Won-lost record
Won-lost record against division teams
Runs scored
Runs scored against division teams
Coin flip
The Playoff Model
CSFBL uses a three-round playoff model. Each round is a 7-game series (i.e. first team to win 4 games wins the round).
Division Championship: Each division winner plays the runner-up in that division. The division winner has home-field advantage.
League Championship: The winners of the first round in each "association" (divisions 1 and 2, and divisions 3 and 4, are grouped) pair up. Home-field advantage goes to the team with the best won-lost record (using the same tiebreaker rules as outlined above), excluding playoff games.
World Series: The two winners of the second round pair off in the World Series. Home-field advantage goes to the team with the best won-lost record (using the same tiebreaker rules as outlined above), excluding playoff games.