TL;DR: Carom billiards is a family of pocketless billiards games played on a 2.84 × 1.42 m table with three balls — one cue ball per player and one shared object ball. The cue ball must contact both other balls to score, with various cushion-contact requirements depending on the variant.
The 3 essential differences from pool
- No pockets. The carom table is a sealed rectangle. Balls cannot be sunk.
- 3 balls only. Two cue balls (white + yellow, or white + spotted), one red object ball.
- Score = caroms. Each successful carom (cue ball touches both other balls under variant rules) = 1 point.
Major variants
- Three-Cushion (most popular): Cue ball must contact 3+ cushions before contacting the second object ball. The pinnacle of skill — covered in our Complete Guide.
- One-Cushion: Cue ball must contact 1+ cushion before second ball. Beginner-friendly.
- Straight Rail (the original): No cushion requirement. Just hit both balls.
- Balkline 47/2 and 71/2: Straight rail with restrictive zones to prevent endless break-runs near the cushion.
- Artistic Billiards: 76 standardized trick-shot positions; the 'figure skating' of carom.
Table & equipment
- Size: 2.84 × 1.42 m (10×5 feet) — same surface area as a snooker table but no pockets.
- Cloth: Heated, fast worsted wool (Simonis 300/Rapide).
- Balls: Aramith carom balls, 61.5 mm — slightly larger than pool balls.
- Cue: 12-mm tip (vs 13 mm pool), shorter shaft. Carom cues optimized for spin.
How scoring works (three-cushion example)
- Player strikes own cue ball.
- Cue ball must contact 3+ cushions before contacting the second object ball.
- Cue ball then contacts both object balls in any order.
- If all conditions met → 1 point; player continues. If not → opponent's turn.
Brief history
Carom billiards originated in 18th-century France ("carambole"). Three-cushion crystallized in 1870s America with the Chicago Billiard Club tournaments. Today the UMB governs world play; major nations: Belgium, Türkiye, Korea, Netherlands, Egypt, Vietnam, Spain, Japan, Sweden.
Why play carom over pool?
- Pure skill expression — no pockets means the result is unambiguous; either the carom counts or it doesn't.
- Geometry first — the Diamond System and Plus 2 systems make carom one of the most mathematically elegant cue sports.
- Higher run ceiling — top players have 25+ run averages; pool 9-ball runs typically end at 9.
How to start
- Read the Three-Cushion Complete Guide for the most popular variant.
- Learn the Diamond System — geometric aiming.
- Practice in our free 3ball.app trainer with realistic physics.
- Find a club: KNBB (Belgium/NL), TBBF (Türkiye), or your national federation.
Practice carom for free
3ball.app gives you a full carom physics simulator in your browser. No download.
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