Here are the basics!!
ACO OFFICIAL RULES FOR THE SPORT OF CORNHOLE
Boards are placed 27 feet from front edge to front edge.
Games are played to 21 or more points. (no bust)
Woody: Refers to any cornhole bag that has been pitched and remains on the cornhole board playing surface at the conclusion of the frame. Each woody is 1pt.
Cornhole: Refers to any cornhole bag that has been pitched and passes through the cornhole board hole at anytime within the frame. Each cornhole is 3pts.
A bag that comes to rest touching the ground AND the board does not count as a point.
Cancellation Scoring: The approved method of scoring for the sport of cornhole is “cancellation” scoring. In cancellation scoring, the points of one player cancel out the points of their opponent. Using this method, only one player/team can score in each frame.
Both players play one board at a time and stay in their designated lane for the whole game (right or left).
Players start the game at one board and alternate pitching bags until each player has pitched all (4) of their bags.
Players then walk to the end of their lane to the other board, take score, and resume pitching back to the other cornhole board.
Players must deliver the bag with an underhanded release.
Feet must stay behind the line of the front of the board at the time of releasing the bag.
The player/team who scored in the preceding frame pitches first in the next frame. If neither player/team scores, the player/team who pitched first in the preceding frame shall retain first pitch in the next frame.
If bags become piled inside the hole and may interfere or obstruct with the next pitch or if there is question whether a cornhole bag would have naturally fallen through the hole, a player may request to rake the cornhole bags that have fallen inside the hole.
ACO downloadable rules click here.
The American Cornhole league has also created a set of rules a lot of top-level players follow.