Block vs random practice for golf: the wrong question

The research says you need both. The harder question is the mix, and the mix isn’t fixed.

Watch any golf instruction channel long enough and the same question shows up. Should I hit fifty 7-irons in a row, or hit different clubs to different targets? The replies arrive in two camps. One says block your reps so the movement gets ingrained. The other cites motor learning research and says random practice is what the science supports.

The framing is wrong. Block and random aren’t competing answers to the same question. They’re answers to two different questions, and a session ignoring either is leaving improvement on the table.

What blocked practice is for

Blocked practice is repetition of the same shot under the same conditions. Same club, same target, same lie. It’s how you build a movement pattern in the first place.

Picture a brand new golfer. Every swing is a question. What do I do with my hands? Where do my hips go? Am I supposed to look at the ball? Their attention is consumed just trying to remember the parts. There’s no spare capacity for anything else. Throw a beginner into random practice and the pattern they’re trying to build never gets enough clean reps to form. That’s why a practice plan for beginners leans heavily on block work in the early weeks.

The same logic applies to experienced golfers working on swing changes. A new grip. A new takeaway. A new release pattern. These are beginner tasks for the player making the change, regardless of their handicap. Block practice is the right tool for building the pattern. The mistake is staying there after the pattern exists.

What random practice is for

Once a movement pattern exists, more isolated repetition stops paying back. Your brain has the answer. Hitting the same shot fifty more times is reinforcement without information.

Random practice means different clubs, different distances, different targets. No two consecutive shots the same. The clearest demonstration came from a 1979 study by Shea and Morgan. Two groups learned the same three motor skills. One practiced them in blocks: all of skill A, then all of B, then all of C. The other got them random, mixed up. During the session, the blocked group looked much better. Faster, less than half as many mistakes.

Then the researchers tested everyone again later. The blocked group’s performance had dropped. The random group’s had improved. The pattern flipped.

The same effect shows up outside the lab. A 1994 study had college baseball players take extra batting practice for six weeks against three pitch types: fastballs, curves and change-ups. One group practiced each in a block. The other got them randomized, like an actual at-bat. After six weeks, the random group had improved their hitting by 57%. The blocked group, 25%. A control group with no extra practice, 6%.

The point isn’t that random is universally better. It’s that random practice is doing something different than blocked practice is doing.

Why the “vs” framing fails

Block and random aren’t two answers to one question. They’re answers to two different questions.

How do I build the movement pattern? Block. The player needs concentrated reps under stable conditions so the pattern can form.

How do I make the pattern survive actual play? Random. The skill has to be retrieved under course conditions. Different clubs, different targets, different lies, no warning, no second tries.

A session that only does block builds a pattern that won’t survive the first tee shot. A session that only does random tests a pattern the player hasn’t built yet. Either pure approach is missing half the loop.

There’s a third leg too. Pressure. Games. Closest-to-the-pin challenges, score-to-beat formats, anything that adds a consequence to the shot. They turn the shot into something that matters, which is closer to what happens on the course than either kind of repetition alone.

Block, random and pressure are three modes. They do three different things. A real practice session uses all three.

The challenge point framework: why the right mix isn’t fixed

The mix depends on the player, and for any given player it changes with the skill they’re working on and where they are in the process. Three phases roughly capture it.

Acquiring. The pattern doesn’t exist yet, or you’re rebuilding it. New grip, new takeaway, new wedge motion. Block dominates. You need clean reps under stable conditions before the pattern is stable enough to test.

Reinforcing. The pattern exists on the range but it isn’t settled. It works when you’re thinking about it, falls apart when you’re not. Block still helps but random has to come in. The skill needs to be retrieved under interference or it won’t be there on the course.

Solidifying. The pattern is grooved. The question now is whether it survives course conditions. Random dominates. Games and pressure formats earn the time. Block is for quick calibration only.

The phases don’t track handicap. A scratch player making a swing change is in acquiring mode for that change, regardless of what the rest of their game is doing. The right ratio depends on what phase you’re in for the specific skill you’re working on right now.

This is what the challenge point framework from researchers Guadagnoli and Lee describes. Learning happens when the difficulty is high enough to make you think but not so high that your brain overloads. The sweet spot moves as you do. The drill that was perfect three weeks ago might be too easy now. The drill that felt impossible last month might land right in the zone today.

What this looks like in practice

Take wedge distance control as the focus area.

Same skill. Same time budget. Different mix because the player is in a different phase. Neither session is “block practice.” Neither is “random practice.” Both respect what the player needs from each mode.

Why we built OSB this way

The hard part isn’t knowing you need block and random and games. The hard part is figuring out the mix for your skill, your phase and the time you actually have today.

That’s the work OSB does. Plans get weighted to where you are. Acquiring a new skill? More block, less random. Solidifying a skill and looking to improve transfer to the course? Less block, more random, games with a score that tracks transfer. When a skill needs a guardrail or a wake-up, the practice caddie picks the right kind of drill. When the data says something has actually moved, you’ll see it.

The Loop watches what’s happening across your sessions and your rounds. When a skill is settled enough to handle interference, the next plan reflects that. When something starts to drift, the mix shifts back. You don’t have to think about challenge points. The plan does that for you.

Pick the mix, not the side

There’s no right answer to block versus random because there was never one question being asked. The real question is the mix, weighted for the phase you’re in, the skill you’re working on and the time you have today. Then refreshed as those things change.

Pick the mix, not the side. That’s the harder question. It’s also the more useful one. The science behind structured practice goes deeper if you want it.