Every week in Sarasota I watch players grind out hundreds of balls against a machine, walk off the court feeling sharp, and then lose the same way they lost last month. The strokes looked great in practice. They fell apart the moment a real opponent started moving them around. I’m Michael Boothman, and after 30-plus years of coaching I can tell you that gap isn’t a mystery. It’s predictable, it’s well documented in the motor learning research, and it’s fixable.
This post is about what a ball machine actually trains, what it can’t train, and how to spend your practice hours so the skill you build shows up when the score matters.
What the machine does well
Let me be fair to the machine first, because it does have a job.
A ball machine delivers the same ball, to the same spot, at the same pace, for as long as you want. That makes it useful for a narrow set of tasks: grooving a grip change you just learned, rehearsing contact on a shot you barely own yet, getting touches when you have no partner, or building basic confidence after an injury layoff. Early in learning a brand-new movement, that kind of repetition has real value. The research calls this blocked practice, and for true beginners it can speed up the first stage of acquisition.
So no, the machine isn’t useless. I’d rather a player hit 200 balls against a machine than hit zero balls at all.
What the machine can’t do
Here’s the problem. Tennis is not a hitting contest. It’s a perception sport. Before you ever swing, you read your opponent’s body, pick up the ball early, judge spin and depth, choose a target, and move — all under time pressure, all while the situation changes point to point.
A machine removes every one of those demands. There’s no opponent to read. No deception. No variation you didn’t program. No consequence for a poor choice, because there are no choices. You’re rehearsing the last 20 percent of the skill — the swing — while skipping the 80 percent that decides matches.
Motor learning researchers have a name for this idea: representative learning design. The principle, laid out by Pinder and colleagues in a widely cited 2011 paper in the Journal of Sport and Exercise Psychology (read the abstract here), is that practice transfers to competition in proportion to how well practice represents the real performance environment — the same information sources, the same decisions, the same time pressure. Strip those out and you build a skill that lives only in the conditions where you built it.
That’s exactly what I see on court. The machine player has a beautiful forehand against a predictable feed and a fragile one against a human being.
Live Ball Is the Method
This is why one of the Six Pillars I coach by at SRQ Tennis is called Live Ball Is the Method. Real rallies, real situations, real learning. From the first week, my players hit against moving, thinking opponents — even at the 10-and-under level. Not because it looks more fun (although it does), but because every live ball forces the full chain: read, decide, move, strike, recover. That chain is the sport. Train the chain, and the strokes that survive are strokes that actually work under pressure.
Live ball practice is harder. Players miss more in week one. Progress feels messier than the tidy rhythm of a machine session. But the research and three decades of my own players say the same thing: performance during practice and learning that lasts are not the same thing. The tidy session often produces less durable skill than the messy one.
If you want to see how I structure that on court, the coaching page breaks down how a typical SRQ Tennis session runs.
How I’d split your practice hours
If you’re a junior player or a parent planning a practice week here in Sarasota, here’s the honest split I give my own families:
Live ball: most of your time. Rallying with a purpose, point play with constraints, situation games — crosscourt battles, serve-plus-one patterns, defending against a player who attacks short balls. This is where match skill is built.
Machine or basket: a small, targeted slice. New technique that needs raw repetitions, a specific contact-point fix, or solo practice when no partner exists. Use it like medicine — specific dose, specific purpose — not like a meal.
Measure what matters. Don’t count how clean the session felt. Count what transfers: in our live drills, I want a player landing 8 out of 10 balls to a target zone inside a real rally before we add pace or raise the challenge. A number earned against a live ball means something a machine count never will.
Three questions to ask about any practice
Whether you train with me or anyone else, run your practice through these:
- Did I have to read anything? If every ball arrived exactly where I expected, I practiced swinging, not playing tennis.
- Did I have to decide anything? Target, shot selection, when to attack — if the answers were pre-loaded, the decision system got zero work.
- Would this rep happen in a match? Not “could it” — would it. The closer practice sits to the real thing, the more of it you keep.
A player who spends a season on live-ball training with honest numbers will beat the player with the prettier machine-fed strokes far more often than parents expect. I’ve watched it happen for 30 years, on public courts from Potter Park to Pineview, and the science backs up what the scoreboard already knew.
If you have questions about how this applies to your player, reach out — michael@srq.tennis or 941-239-4703. I answer my own messages.
See you on the court, Coach Michael