Mini tennis is when you play groundstrokes that have to land in one or both service boxes instead of the depth of the whole court.
Why is it considered a warm-up?
Mini tennis requires EXTREME racket head speed - much more racket head speed than full court tennis. You have to swing as fast as if you were trying to hit a winner on every rally ball, but just use that racket head speed vertically instead of horizontally, otherwise the ball will not dip before it sails long of the service box - particularly when you consider that you are hitting it not from the baseline but your own service box, so you have to swing even faster to make it drop even shorter.
This sort of drill tires me out much faster than normal tennis, and I find it extremely hard to be consistent, because of the extreme racket head speed that has to be involved, just wondering why people consider it a warm up drill?
This is my preferred way to play mini tennis. My goals during mini tennis:
1. find my ground stroke contact points, by prepping myself to watch the contact point, get under the ball, etc...
2. get footwork going (taking many small adjusting steps)
3. incorporate full body to generate as fast a swing speed I can, with a full follow through
Most folks reading through this, are probably thinking, either (or both):
1) that's impossible to swing fast, and keep a rally at the svc line
2) that's rude - (ie. it sounds like I'm hitting winners from the service line)
The way to accomplish this by:
a) not take a very abbreviated backswing. I start my backswing, at or an inch or 2 before the contact, and take a fast/full swing from there (think of a pinball plunger, you pull back a small amount, and just let it go).
b) focus on topspin to get the ball up and down quickly
I still target the center of the service box, and even if the ball is over the height of the net, I try to translate all my racquet head speed into topspin.
When I'm doing this right, it feels like my arm's sole responsibility is to get under the ball, and generate topspin, and the way pace (forward) is being generated is the energy from the incoming ball, and my body weight moving forward.
When I first started doing mini tennis this way (after taking lessons from a former touring pro), I found it difficult, because I actually didn't know where I was contacting the ball. I couldn't stop myself from taking a full loopy western grip windup, so I'd end up taking a full loopy windup, then *slowing down* my racquet head speed to "control" the ball from going out.
Over time, I've been able to divide my backswing into 4ish different "lengths" (again, think pinball plunger), all along the same swing path of my "full-from-the-baseline" backswing (keep in mind all these have a generally full follow through)
1. no backswing (eg. start at the contact point), great for delicate shots at the net
2. "half volley backswing" - slightly more backswing, but generally used for half volley (eg. either against balls that hit the base, or at my feet when attacking the net)
3. 3/4 rally ball - eg. from approximately the "pat the dog" position.. minimal loop... used for service returns,; 3/4 rally ball where I'm not quite in position to take a full swing; vs. low ball in the midcourt, where I still need to get the ball deep, but because I have less court to hit into, i "take a little off" by limiting my backswing; on clay, because the bounces are always irreguar; when approaching with a drive (not quite a half volley, but precision is needed more than power); against heavy hitters where I'm having timing challenges
4. full swing with a loop (eg. racquet tip up, does the "C" drop below the ball, etc...) - used when: deep behind baseline; whenever I have time; putaways where contact is above the net; etc...
Before every match, practice, etc... I always ask to do mini tennis, and most folks kinda look at me like "that's a drill my kids do", and then they proceed to take every ball as a volley, refuse to move their feet, etc... Whereas even if the ball is hit down the middle every time, I'm running around alternatining between the bh and fh, taking 5-6 adjusting steps per shot, and usually sweating at the end of the 5 min.
Jeff describes mini tennis similarly here:
https://www.youtube.com/watch?v=IVrPoN6a8so
I'm playing tonight, so I'll record and post a vid tomorrow.