Ping pong is an indoor sport played on a table with a ball and paddles. Also known as table tennis, it began as a recreational game but developed into a worldwide sport. Ping pong is played on a scaled down tennis-like court, on top of a table with a short net crossing the middle. Players, either one or two per team, stand at the ends of the table and volley the ball over the net. The name "ping pong" came from a brand of equipment made for the sport in the mid-1900s, and has been used interchangeably ever since with its official designation: table tennis.

A small, wooden paddle with a handle is used to serve the hollow ping pong ball across the net on one bounce. The ball, golf-ball sized but very light weight, has to be returned in the air or after one bounce over the net. A point is gained when the opponent fails to return the ball on the table. Games are played up to 11. If the game is within one point at that time, games are played until one side gains a two point advantage. In doubles and singles table tennis the rules are the same.

The ping pong paddle may be one of many different styles and held many different ways. It may be held with a hand around only the handle, like a baseball bat. Alternately, it can be held with three fingers around the handle and the index finger extended behind the face of the paddle, for control and support. The ping pong paddle is often colored differently on both sides. The paddle may be textured differently, also, with different types of rubber. The rubber may include different degrees of stickiness or tiny bumps called pimples for different levels of ball spin.

The ping pong table is 9 ft. (2.7 m) long, 5 ft. (1.53 m) wide, and 2.5 ft. (.76 m) high. The net divides the table across the width and is 6 in. (15.3 cm) high. The table usually has a smooth coating, and official ping pong tables are either green or blue in color. The ball is allowed to hit anywhere on the table, though there is a line dividing the table lengthwise. This line is for serving in doubles play. In doubles the serve must come from the right side of the table and land over the net on the other side of the line.

Ping pong was invented in England near the end of the 19th century as a recreational activity for families or friends to play at home. It was played with simple equipment and could be a fun, fast paced activity for those without high athletic skills, strength or endurance. Table tennis has become an international game since the 1950s, dominated by many Asian countries. The game in professional competitions becomes a quick sport for those with extremely good reflexes and precise hand-eye coordination. Table tennis reached the level of Olympic competition in 1988 and has been played at the event since.