I cooked up this drill idea the other day while running a serve caterpillar. I often have players returning serve during serve drills to reduce time spent in line and of course work on the second most important shot of the game. This drill will put extra pressure on the returner when the server is serving from up close.
Two players face each other across the net. One is serving; the other is returning. Serving player is doing a serve caterpillar, meaning they are working their way back from the net to the baseline. Server is serving from four stations: mid service box, service line, 60 ft. blended line/no man's land, and baseline. Returning player is just trying to get their own returns in play. Players do not play out the point. Activity should move quickly to get new players rotated in.
One point is awarded for every ball correctly hit. Server has one chance per position. Any misses by the server = a point for the returner. Winner stays and switches roles. Ties are broken with a serve from the baseline until someone wins.
Since players do not play out point, up to 4 players could be playing simultaneously per court with additional players waiting to rotate in.