Two players play cross-court, deuce side only; alleys are out. The point starts with a drop and hit. Whoever wins the point will start the rally for the next one.
Once one of them wins 7 points, he/she wins a set. Three sets represent a match.
Variation
– The rally can start with a serve and whoever wins the point starts the next one. 
– Play the same on the ad side.

cross court battle