Put your phone on the rail post and keep score the way referees do: caroms, innings and a live average for both players. The board saves itself between visits, works offline as part of the 3ball PWA, and needs no login.
How scoring works in three-cushion
A match is played in innings. The incoming player shoots until the first miss; every successful carom is one point, and the miss ends the inning and hands the table over. The official score line therefore has three numbers per player — points, innings and average — and the board above tracks all three automatically: tap +1 carom for each point, tap end inning on a miss.
- Match distance: club nights usually race to 15–30 points; international qualification plays 40, world-final formats 50. Set it at the top and the board highlights the winner the moment the distance is reached.
- Equalizing inning: under UMB rules, if the player who started the match reaches the distance first, the opponent gets one final inning to tie. The board keeps counting, so just play it out.
- Undo: a stray tap happens at the table — one touch rewinds the last action exactly.
Why the innings count matters
Points tell you who won; points ÷ innings tells you how well you actually played. That ratio — the general average, or moyenne — is the universal measure of three-cushion strength, the same number leagues use for classification and tournaments use for seeding. Track it every session and feed your results into the average calculator to see your level band and how it trends month over month.
Club-night tips
- Bank the lag. Decide who breaks with a lag to the head rail; the winner chooses. Note who started — it decides the equalizing inning.
- Count out loud. Announcing the score after each inning is standard etiquette and prevents disputes — the board makes it effortless.
- Pick an honest distance. A race that ends in 20 minutes teaches less than one sized to both averages: roughly average × 25 innings is a good club-night match length.
- Record the result. Ten recorded sessions give you a real baseline average — the single most useful number for structuring practice with the practice-routine plan.
Between matches, train on real physics
The board lives next to a full three-cushion simulator: real Hertz-contact physics, a brute-force solver that shows every route through a position, and a classic position library to drill the patterns your matches keep demanding. Install the 3ball PWA and both the simulator and this scoreboard work offline at the club.