These are the offical rules of the World Series of Beer Pong you may use them to fit your needs.

General

These rules are designed with three purposes in mind:
Fairness to all players
Efficiency in running a maximum number of games simultaneously
Minimization of possible disputes between participants

Tournament Structure

Prelims

Prelims will take place on the first two days of the event (January 2 and January 3)
Each team will play 6 games per day (for a total of 12 games) during prelims. Opponents will be chosen randomly. For each game in prelims, one team will have choice of table side, and the other team will have choice of first possession.
Each team will receive a schedule of their preliminary opponents. The schedule will indicate which team has choice of possession and which team has choice of table side.

Scoring of Prelims

After each game in prelims, a scorecard must be filled in and signed by a member of each team. The scorecard should be filled out with the following information: name of the winning team, name of the losing team, round number, table number, and the number of cups remaining on the losing team's side. In the event of a forfeit, an 'F' should be placed in the "remaining cups" section.
At the conclusion of prelims, all teams will be ranked, first by number of wins, and then by "Total Cup Differential". Note that there are no 'divisions' for WSOBP.
"Total Cup Differential" is defined as the sum of the "Cup differentials" for all games actually played. For each game played, the winning team receives a "cup differential" equal to the number of cups remaining on the opponents side. The losing team receives a negatie cup differential for each cup remaining on his side.
In the event of a forfeit, the forfeiting team receives a Loss and a cup differential of -3. The opposing team receives a Win and a cup differential of Ʊ.

Finals

Finals will take place on the third day of the event (January 4), and will conclude with a standard 32-team double elimination bracket.
Approximately two-thirds of the field will be eliminated prior to the Final day.

Any ties for pertinent seeds will be broken first by head-to-head results, if possible, and then by a strength-of-schedule calculation. In the event that a tie still remains at the end of day 2, tiebreaker games will be held.

Equipment

Tables: 8' x 2' x 27.5" Table
Balls: 40 mm 3-Star Tournament Grade Balls
Cups: 16 oz. cups
Top width: 3-5/8"
Height: 4-5/8"
Base width: 2-1/4"

Cup Formation

10 cups per team
Starting formation is a "tight triangle" formation (rims touching), pointing towards the opposing side.
The 10-cup triangle must be centered on the table and the back row of cups must be within 1 inch of the edge of the table.
Cups must not be tilted or leaned against the surrounding cups.

Content of Cups

Shooting and Table Sides

In prelims, first possession will be determined by random selection. Each team will receive a printed schedule which will indicate which team has choice of first shot. The team not receiving choice of shot gets to choose which side of the table his team will shoot from.
On day three, possession and table side will be chosen by the team with the superior rank in prelims. In the event of a tie (two teams with the same win-loss record and Cup Differential Per Game), a coin toss will determine who chooses to shoot.
The team with first possession will get one (1) shot. Each team will get two (2) shots for each turn thereafter, one shot per team member, subject to any other rules below.

Grabbing

The ball in play may be grabbed, however ONLY after it has already made contact with a cup, but not while the ball is in the cup. You may not grab before the ball has hit a cup.
In the event of player interference prior to the ball making contact with a cup, (aka premature grabulation), a one-cup penalty will be imposed for the interference. The thrower who had his or her shot interfered with may choose the cup to be removed.
Bounce Shots: Players ARE allowed to let their shots bounce off of the table before making it to the cup.. In accordance with B(2) above, bounce-shots may not be interfered with until they have made contact with a cup. It should be noted that bounce-shots\do NOT count for two cups.
Balls may not be interfered with while inside of a cup. I.e., no fingering.

Reformation
Cups must be reformed at 6, 3, and 1 cups remaining according to the diagram below:

 
Racks must be aligned to the center of the table. When one cup is remaining, the cup shall always be pulled back to within an inch of the end of the table, and it shall be placed in the center of the table.
Cups that drift out of position may be reformed at the request of the thrower.

Rollbacks - The Pope's Rule
In general, if both players on a team sink his/her shot on the same turn, that team will get one (1) additional rollback shot, not two. The only exception to this rule is during redemption shots in a Finals game, in which case both balls are rolled back.
Either teammate may take the rollback shot.

"Miracles" - If a shot happens to land and stay on top of the cups, that shot will count as a miss. Congratulations - you are lucky, but you have not proved that you have any pong skills at all. If you can prove to us that you can intentionally land a ball on the cups on demand, we'll consider changing this rule. Until then, put the ball in the cup - that is the point of the game.

Leaning will be permitted, with the following considerations:
A player may not place a hand/foot/leg/penis/whatever on the table in order to gain additional reach and/or leverage.
Players may not edge themselves around the table when they throw.

Under no circumstances may a player shoot with any part of his or her body on (against is permitted) the table. Of course, if you have a beer gut that must rest on the table because there's nothing else you can do with it; the "beer gut on the table" exception will apply.
Incidental contact aside, a player may not move the cups out of position with his hand or any part of his body. Any prolonged leaning which results in lateral movement or tilting of cups is prohibited and will result in a one-cup penalty (the choice of cup will be granted to the opposing team).

Distractions

Distractions are permitted with the following restrictions (subject to a one cup penalty)
Players may not cross the plane of play (the imaginary plane which runs vertically and separates you from your cups) with any part of their bodies, clothing, or other objects, while the ball is in play. To avoid violating this rule, just stand back a few feet from your cups.
Players may not fan, blow, or otherwise intentionally create an air current surrounding the cups in play.
Distractions should not violate any local, state, or federal laws.

The Dipshit Not Paying Attention Rule

If TEAM1 knocks over one of its own cups, that dipshit's team (TEAM1) loses that cup(s). However, if the other team (TEAM2) also contains dipshits not paying attention that do not catch the first team of dipshits (TEAM1) knocking over their cup, then TEAM1 may keep that cup.

Balling your own cups

In the event that a player who has possession of the ball drops that ball into his own cups either accidentally or intentionally, no penalty is taken.
In the event that a player who does not have possession of the ball comes in contact with the ball and as a result that ball enters one of his own cups, such as by unintentionally acting as a backboard, that shot IS counted.

Interference

Ball Interference

Interference is defined as any contact, intentional or otherwise, between game pieces (balls or cups) and any other objects.
In the event of player interference prior to the ball making contact with a cup (aka Premature Grabulation), a one-cup penalty will be imposed for the interference. The thrower who had his or her shot interfered with may choose the cup to be removed.
In the event of interference on the part of non-players, such as spectators or officials, the shot is replayed.
In the event that a player drops his/her ball into one of his/her own cups, no penalty is enforced. (See "Balling your own cups")
All objects sitting on the table are considered part of the table for the purpose of determining interference. Specifically, if a shot bounces off of an errant object on the table (such as a water cup, a cup that has already been hit, a personal can of beer, etc) and then goes into a live cup, that shot is counted.
The previous clause notwithstanding, the playing area should be kept as clear as possible at all times. Specifically, no objects should placed in between the opposing cup formations.

Cup Interference

In the event that a player knocks over his or her own cups, those cups are to be counted as though sunk and removed from the table. They are not to be refilled or replaced unless the dipshits are not paying attention (See: Dipshit Not Paying Attention Rule).
In the event that cups are knocked over by any non-player, those cups are not counted as sunk, and are to be refilled and replaced in their appropriate positions on the table.
In the event that cups drift or are otherwise moved out of formation, those cups may be replaced in their appropriate positions upon request from the opposing team.

Drifters: In the event that a cup drifts out of its position while a ball attempting to sink those cups is in mid-flight, the shot may be re-tossed only in the event that it was not an airball, i.e. the ball must have had a chance of making the cup that drifted.

Cup Adjustment: Cups may NOT be moved or adjusted while the ball is being released, or while the ball is in mid-flight. Doing so incurs a 1-cup penalty.
Balls Knocking Over Cups: Cups should be filled to the point where it is not possible to knock the cup over with the ball. However, in the event that a ball does knock a cup over, the shot is counted as a hit, UNLESS it is absolutely clear that the ball had not entered the cup before it was knocked over, in which case the cup is reset and the shot is considered a miss.

Interference During Reformation

Players are not allowed to shoot until the opposing team has clearly finished reforming. In the event that the thrower shoots before this:
A cup made does not count and the opposing team receives possession of the ball.
A missed shot is counted as a miss and the opposing team receives possession of the ball.

Ending the Game

Redemption (A.K.A. Rebuttle) & Overtime (note that this applies for all games played during the WSOBP)
Two scenarios are possible in finals:
More than one cup per side remaining when the last cup is sunk. In this case, "Unlimited 1-ball Redemption" is given. Either player may take the first shot, and the ball is rolled back until a player misses. At this time, players MUST alternate throwers in the event of multiple hits-one player may NOT take all the redemption shots.
One cup vs. one cup remaining when the last cup is sunk. In this case the rule is, "Take as many shots as you have balls remaining on your side". For example:
Your opponent misses their first shot, but sinks the second into your last cup. You get 2 chances to redeem, i.e. you may miss once.
Opponent sinks your last cup on their first shot. You get 1 chance to redeem.
If an opponent sinks your last 3 cups in 1 turn, you get 2 chances to hit last cup, i.e. you may miss once
Successful redemption results in initiation of a 3-cup overtime, with the dominant team (the team which would have won had their opponents not redeemed), selecting possession.

Overtime (3-cup)

Overtime formation is a tight triangle.
The dominant team (the team which would have won had their opponents not redeemed) selects which side shoots first.
The same redemption and rollback rules apply during overtime as apply pre-overtime.

Miscellaneous

Disputes

A dispute is not considered to be valid unless witnessed by two or more individuals. In the event of a valid dispute, that game is considered paused and an official must be notified. Any witnesses to the event in question must remain at the table until the dispute has been resolved. All calls made by the referee are final. Intentional abuse of game rules and/or disputation without adequate cause is grounds for ejection from the tournament.

Absentee Players

In the event that a player is temporarily absent, no substitution may be made. The game continues without the missing player; i.e. that team receives only one shot per side until the missing player returns.
In the event that a player is forced to vacate the venue by the owner of the venue, Beer Pong Events, LLC, hired security, or any other entity deemed to be authoritative on this matter at the sole discretion of Beer Pong Events, LLC, the team will forfeit the rest of the tournament, will not be permitted back in the venue, and will not be entitled to any refund, in whole or in part, of any fees paid for the event or any associated activities.

Conduct

All players are to conduct themselves in a matter respectful to other players, referees, and the sport of Beer Pong. Unacceptable conduct will result in severe punitive action, to be applied at the discretion of the referees. Unacceptable conduct includes, but is not limited to, fighting, abuse of referees, abuse of other players, abuse of beer (excessive spilling), etc.

Interpretation of Rules

Final interpretation of these rules is made at the sole discretion of the referees.