Table tennis scoreboard.

Table tennis points come fast. The ITTF moved to 11-point games in 2001 specifically because 21-point games were too slow for TV — and at 11, a single distracted moment can mean nobody can agree on the score. A digital scoreboard removes the argument.

RallyRef shows giant numerals you can read across the room, knows when to switch sides (every 2 points, every 1 point in a deciding game from 5-5), and handles deuce at 10-10 automatically.

• — Open /play?sport=table-tennis on your phone, iPad or laptop.
• — Pick best of 5 or best of 7. Tap left for Player A, right for Player B.
• — The scoreboard switches sides automatically at 2-point intervals and tracks the match score across games.
• — Deuce at 10-10 — first to lead by 2 wins the game.
• — Cast it to a TV or wall display for league night.

• — Game: first to 11 points, must win by 2.
• — Match: best of 5 or best of 7 games (you choose). The first player to win the majority of games wins the match.
• — Deuce: at 10-10, alternate serves one-by-one until someone leads by two clear points.
• — Service: each player serves twice in a row, then the serve switches. In deuce, serves alternate every single point.
• — Side change: ends are changed at the end of each game, and once either player reaches 5 in the deciding game.

Singles uses the standard rules above — first to 11, win by 2, two-serve rotation. Doubles adds a serve order (A1 → B1 → A2 → B2) and a diagonal-serve requirement (right half-court to right half-court). RallyRef tracks both formats and shows the right serving indicator on screen.

A common setup at table tennis clubs is a small Android stick or Chromecast plugged into a wall TV next to the table. Load RallyRef once, and the scoreboard renders huge, readable scores from the table — no app installs, no logins. If you run a league, you can give every match its own scoreboard URL on the same display by opening multiple tabs.