Backgammon Tournament Rules: Official Regulations Explained (2026)

Playing in a backgammon tournament is a different experience from casual home games. The rules are stricter, the procedures more formal, and mistakes that pass unnoticed in friendly play have real consequences. This guide covers everything you need to know to compete confidently in official backgammon tournaments.

Why Tournament Rules Exist

Casual backgammon is flexible — players agree on house rules and resolve ambiguities informally. In tournaments, with money, rankings, and titles at stake, rules must be unambiguous and consistently enforced. The major governing bodies — the World Backgammon Association (WBA), the American Backgammon Tour (ABT), and Backgammon Federation — each publish official tournament rules that tournaments adopt.

This guide synthesises the most widely used international tournament standards.

Equipment Standards

The Board

• Standard backgammon board with 24 alternating points in two colors
• Points numbered 1–24 consistently from each player’s perspective
• A clear bar (center divider) and home/outer board divisions

Dice

• Precision dice (also called casino dice or perfect dice) with sharp edges are strongly preferred
• Personal dice are generally not allowed — the tournament provides dice
• Each player uses their own dice cup for rolling

Doubling Cube

• A standard doubling cube (faces showing 2, 4, 8, 16, 32, 64) is required
• The cube starts at 1 (the 64-face indicates “not yet turned”)
• The cube must remain visible at all times

Clocks

• Required at major events (Grand Prix, National Championships)
• May be optional or unavailable at local club events
• Standard increment: 2–3 minutes per game, plus bonus time per move at some events

Rolling the Dice

Where to Roll

• Each player rolls their dice in the right half of the board (from their own perspective)
• Dice must be rolled from the cup — not from the hand
• The dice must settle completely in the correct half of the board

Cocked Dice

A die is cocked (invalid) if it:

• Does not land flat (resting on a checker, pip, or edge)
• Lands outside the right half of the board
• Lands off the board entirely

Both dice must be re-rolled if either die is cocked. A player cannot choose to re-roll only the cocked die.

When the Roll Is Valid

The roll is considered valid and must be played once both dice have come to rest legally. You cannot re-roll because you dislike the result.

Moving Checkers

• Checkers are moved after rolling — never before
• Once both dice have been rolled, the position shown is what you must play

Checker Movement Rules

Touch-Move

In most tournaments, if you touch a checker with the clear intent to move it, you must move that checker if a legal move exists. This rule prevents players from picking up checkers to “test” different moves.

Some events play a more relaxed version: you are only committed once you lift the checker from its point. Check your specific tournament’s rules.

Completing a Move

A checker move is completed (and cannot be taken back) when:

• The checker is placed on its destination point, and
• The player’s hand leaves the checker

You may adjust a checker’s position on the point (neatening it up) without it being a completed move, as long as you announce “adjust” first.

Order of Moves

You may play the dice in any order (higher die first or lower die first). You may change the order until both dice have been fully played.

Legal and Illegal Moves

What Is an Illegal Move?

Common illegal moves include:

• Moving a checker in the wrong direction
• Moving a checker to a made point (2+ opponent checkers)
• Bearing off when not all checkers are in the home board
• Moving when you have a checker on the bar that hasn’t re-entered
• Using dice values incorrectly (e.g., combining dice that cannot legally be combined)

Claiming an Illegal Move

• The opponent must claim the illegal move before rolling their own dice
• Once the opponent has rolled, the illegal move stands — it cannot be corrected
• If an illegal move is claimed, the position is restored and the correct legal move must be made

Tip: Always check your opponent’s moves before rolling. This is your responsibility.

The Doubling Cube in Tournaments

Basic Cube Rules

• Either player may offer the cube (double) at the start of their own turn, before rolling
• The opponent may take (accept the new stake) or drop (resign the game at the current stake)
• Once taken, the cube belongs to the taker — only they can re-double

For full cube mechanics, see the doubling cube guide.

The Crawford Rule

The Crawford Rule is mandatory in tournament match play. It states:

• When a player reaches match point minus one (one point away from winning the match), the game immediately following is the Crawford game
• In the Crawford game, neither player may offer or accept the doubling cube
• After the Crawford game, the cube is available again for all remaining games

The Crawford Rule prevents the trailing player from having nothing to lose by doubling immediately. For more detail, see the Crawford Rule guide.

The Post-Crawford Rule

After the Crawford game (if the match continues), the trailer will always double immediately at the start of any game (since they have nothing to lose — they’re already losing the match). This is automatic and expected behaviour, not a violation.

Jacoby Rule — NOT Used in Matches

The Jacoby Rule (gammons and backgammons only count if the cube has been turned) is a money game rule. It is not used in match play. Gammons and backgammons always score their full value in tournaments.

Match Play vs. Money Game Rules

Tournaments are almost always played as match play (first to X points wins). Key differences from money games:

For match-specific strategy (including when to gamble on backgammons), see backgammon match play and match equity tables.

Time Controls and the Clock

Standard Time Controls

At major events, each player receives a time bank per game or per match. Common formats:

• Per game: 1–3 minutes per player per game
• Per match: Fixed total (e.g., 8 minutes for a 5-point match, 12 for a 7-point)
• Fischer increment: A small amount of time is added after each move (e.g., 5 seconds)

Clock Procedures

• The clock is started after the opening roll
• Each player’s clock runs only during their own turn
• After completing a move, press the clock button to stop your clock and start your opponent’s
• The clock is paused during director consultations or rulings

Clock Expiry

If your clock reaches zero, you forfeit the match — not just the current game. This is strictly enforced at major events. Manage your time carefully.

Disputes and Directors

Calling the Director

If a rule question arises, call for the tournament director (TD). Do not argue or try to resolve disputes without the TD if either player disagrees.

The TD’s ruling is final during the tournament, though appeals may be available at larger events.

Reconstruction of Positions

If a position is disturbed accidentally, both players should try to reconstruct it from memory. If they cannot agree, the TD may be asked to reconstruct based on the game score and what both players remember.

Pre-Match Procedures

Before each match:

1. Verify the match length with your opponent (number of points)
2. Set the clock correctly if using one
3. Agree on any house rules (usually none — standard rules apply)
4. Determine who goes first (each player rolls one die; higher goes first, re-roll on ties)

Conduct and Etiquette

Beyond the rules, tournament conduct matters. Key expectations:

• Move at a reasonable pace — don’t stall intentionally
• Don’t disturb adjacent matches with noise
• Announce cube decisions clearly (“double” / “take” / “drop”)
• Don’t discuss positions with spectators or kibitzers during a game
• Congratulate your opponent after a match, win or lose

For a full guide to backgammon etiquette in competitive settings, see backgammon etiquette.

Preparing for Your First Tournament

If you’re new to tournaments:

1. Read the specific event’s rules document — most are posted on the tournament website
2. Practice with precision dice if possible — they roll and feel different from standard dice
3. Learn the Crawford Rule and doubling cube thoroughly — they are tested constantly
4. Arrive early to find your section, set up your board, and ask questions before play begins
5. Review backgammon match play strategy — match play decisions are different from money games

For a list of major tournaments worldwide, see backgammon tournaments. For rankings and how to track your progress, see backgammon ratings.

Summary

Tournament backgammon adds formal procedures to the base game:

• Precision dice, dice cups, and proper rolling into the right half of the board
• Cocked dice are re-rolled (both dice)
• Touch-move applies — be deliberate before touching a checker
• Illegal moves must be claimed before the opponent rolls
• The Crawford Rule is mandatory — no cube in the Crawford game
• Clocks are used at major events; expiry forfeits the match
• No Jacoby Rule in match play

The rules exist to keep competition fair and decisive. Learn them before you play, and you’ll feel confident from the first move.